{"product_id":"one-step-whole-body-artery-scan-a-new-way-to-detect-heart-and-brain-vessel-disease","title":"One-Step Whole-Body Artery Scan: A New Way to Detect Heart and Brain Vessel Disease","description":"\u003cp\u003eThis research study tested a new, faster, lower-radiation CT scanning technique that images the heart, neck, and brain arteries in a single one-step procedure. The study of 300 patients found that 63% had plaque buildup in their arteries, and that abnormal blood glucose (sugar) and total cholesterol levels were significantly linked to plaque formation in both heart and brain blood vessels. The findings suggest that this advanced imaging approach could help doctors identify at-risk patients earlier and guide prevention strategies for heart attack and stroke.\u003c\/p\u003e\n\n\u003ch1\u003eOne-Step Whole-Body Artery Scan: A New Way to Detect Heart and Brain Vessel Disease\u003c\/h1\u003e\n\n\u003ch2\u003eTable of Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"#ddn-key-points\"\u003eKey Points\u003c\/a\u003e\u003c\/li\u003e\n\n  \u003cli\u003e\u003ca href=\"#background\"\u003eUnderstanding the Problem: Atherosclerosis in Heart and Brain Arteries\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"#study-goals\"\u003eWhat This Study Set Out to Accomplish\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"#methods\"\u003eHow the Research Was Conducted\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"#findings\"\u003eKey Findings: What the Researchers Discovered\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"#implications\"\u003eWhat This Means for Patients and Medical Practice\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"#limitations\"\u003eStudy Limitations: What This Research Cannot Tell Us\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"#recommendations\"\u003eRecommendations for Patients\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"#ddn-faq\"\u003eFrequently Asked Questions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#source\"\u003eSource Information\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- ddn:keypoints:start --\u003e\n\u003ch2 id=\"ddn-key-points\"\u003eKey Points\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eA one-step CT scan can image heart, neck, and brain arteries in under one second.\u003c\/li\u003e\n\u003cli\u003eIn 300 asymptomatic patients, 63% had plaque in heart or brain arteries.\u003c\/li\u003e\n\u003cli\u003eAbnormal blood glucose and total cholesterol were linked to soft, vulnerable coronary plaque.\u003c\/li\u003e\n\u003cli\u003eThe average radiation dose was 1.48 mSv, much lower than a standard chest CT.\u003c\/li\u003e\n\u003cli\u003eThe study could not prove causation or predict future heart attacks or strokes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ddn:keypoints:end --\u003e\n\n\n\u003ch2 id=\"background\"\u003eUnderstanding the Problem: Atherosclerosis in Heart and Brain Arteries\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eAtherosclerosis\u003c\/strong\u003e—a condition in which fatty deposits, cholesterol, and other substances build up inside artery walls to form \u003cstrong\u003eplaque\u003c\/strong\u003e—is the leading cause of two devastating medical events: \u003cstrong\u003eischemic stroke\u003c\/strong\u003e (a blockage of blood flow to the brain) and \u003cstrong\u003eacute coronary syndrome\u003c\/strong\u003e (a sudden reduction of blood flow to the heart, including heart attacks). These conditions are responsible for enormous health burdens worldwide.\u003c\/p\u003e\n\n\u003cp\u003eOne important fact that many people do not realize is that atherosclerosis is rarely limited to just one part of the body. It commonly affects \u003cstrong\u003emultiple vascular beds\u003c\/strong\u003e—meaning that if a patient has plaque in their heart arteries (coronary arteries), they are more likely to also have plaque in the arteries that supply the brain (carotid and cerebral arteries).\u003c\/p\u003e\n\n\u003cp\u003ePrevious research has shown that plaque buildup in the coronary and carotid arteries shares the same genetic basis, and that carotid and coronary artery disease are closely associated because they share similar risk factors. These shared risk factors include high blood pressure, diabetes, high cholesterol, smoking, and family history of heart disease.\u003c\/p\u003e\n\n\u003cp\u003eGiven this connection, identifying the risk factors for—and the relationship between—coronary and carotid\/cerebrovascular atherosclerosis is highly significant. Finding plaques early, before they cause symptoms, enables early treatment and can potentially reduce future vascular events like heart attacks and strokes.\u003c\/p\u003e\n\n\u003ch2 id=\"study-goals\"\u003eWhat This Study Set Out to Accomplish\u003c\/h2\u003e\n\n\u003cp\u003eThe research team, led by Dr. Shurong Liu and colleagues, aimed to advance a technique called \u003cstrong\u003eintegrated coronary–carotid–cerebral computed tomography angiography (ICCC-CTA)\u003c\/strong\u003e. This is a specialized type of CT scan that images three key vascular territories in a single examination:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThe \u003cstrong\u003ecoronary arteries\u003c\/strong\u003e (arteries supplying the heart muscle)\u003c\/li\u003e\n  \u003cli\u003eThe \u003cstrong\u003ecarotid arteries\u003c\/strong\u003e (the main arteries in the neck that supply the brain)\u003c\/li\u003e\n  \u003cli\u003eThe \u003cstrong\u003ecerebral arteries\u003c\/strong\u003e (arteries inside the brain)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe primary goals of the study were to:\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003eDevelop a \u003cstrong\u003elow-radiation-dose, one-step\u003c\/strong\u003e ICCC-CTA technique that can evaluate all three vascular beds simultaneously\u003c\/li\u003e\n  \u003cli\u003eAnalyze the \u003cstrong\u003eassociation between cardiovascular and cerebrovascular atherosclerosis\u003c\/strong\u003e—in other words, whether plaque in the heart arteries predicts plaque in the brain arteries and vice versa\u003c\/li\u003e\n  \u003cli\u003eEvaluate the \u003cstrong\u003erisk factors for different plaque types\u003c\/strong\u003e to enable early-stage treatment and reduce the burden of cardiovascular and cerebrovascular disease\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003eThe researchers had previously reported in 2015 on using a low-radiation dual-source CT system to evaluate coronary, carotid, and cerebral artery stenosis simultaneously. This new study builds on that earlier work by refining the technique and examining risk factors in greater detail.\u003c\/p\u003e\n\n\u003ch2 id=\"methods\"\u003eHow the Research Was Conducted\u003c\/h2\u003e\n\n\u003ch3\u003eStudy Participants: Who Was Included?\u003c\/h3\u003e\n\n\u003cp\u003eThe study was a prospective trial, meaning patients were enrolled and followed forward in time. Between \u003cstrong\u003eJanuary 2015 and December 2017\u003c\/strong\u003e, a total of \u003cstrong\u003e386 consecutive asymptomatic patients\u003c\/strong\u003e with cardiovascular risk factors were enrolled and underwent ICCC-CTA at participating medical centers.\u003c\/p\u003e\n\n\u003cp\u003ePatients were excluded from the study for the following reasons:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIodinated contrast allergies\u003c\/strong\u003e (an allergy to the dye used for CT imaging)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRenal disease\u003c\/strong\u003e with a serum creatinine concentration of 1.5 mg\/mL or higher (because the contrast dye can stress the kidneys)\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003ePregnancy\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIrregular heart rate\u003c\/strong\u003e (which can interfere with image quality)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAfter applying these exclusion criteria, \u003cstrong\u003e300 patients (77.7%) remained\u003c\/strong\u003e in the final analysis. Additional exclusions that occurred during the study included poor CTA image quality (n = 6), failure to follow the ICCC-CTA protocol (n = 9), and lack of complete laboratory data (n = 71).\u003c\/p\u003e\n\n\u003cp\u003eAll patients had their baseline demographic data recorded. The clinical and laboratory data collected included:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSex, age, height, and weight\u003c\/li\u003e\n  \u003cli\u003eSmoking history and family history\u003c\/li\u003e\n  \u003cli\u003eHistory of diabetes, blood pressure, and hyperlipidemia (high blood fats)\u003c\/li\u003e\n  \u003cli\u003eTotal cholesterol, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglyceride concentrations\u003c\/li\u003e\n  \u003cli\u003eCreatinine concentration (a marker of kidney function)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDefinition of Cardiovascular Risk Factors\u003c\/h3\u003e\n\n\u003cp\u003eThe study defined the primary cardiovascular risk factors using standard clinical criteria:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiabetes mellitus\u003c\/strong\u003e was defined as a fasting glucose concentration of ≥ 6.1 mmol\/L, a non-fasting glucose concentration of ≥ 11.1 mmol\/L, or use of hypoglycemic therapy (insulin, oral diabetes medications, or dietary advice).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHypertension\u003c\/strong\u003e (high blood pressure) was considered present if the patient had a previously established diagnosis, a systolic blood pressure of ≥ 140 mm Hg, a diastolic blood pressure of ≥ 90 mm Hg, or was taking antihypertensive medications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDyslipidemia\u003c\/strong\u003e (abnormal blood fats) was defined according to the patient's medical history or their current use of lipid-lowering drugs (such as statins).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmoking status\u003c\/strong\u003e and \u003cstrong\u003ealcohol consumption\u003c\/strong\u003e were ascertained from the medical history.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Scanning Technique: How ICCC-CTA Works\u003c\/h3\u003e\n\n\u003cp\u003eThe ICCC-CTA procedure is technically sophisticated. Here is how it works, step by step:\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003ePatients received a single \u003cstrong\u003e0.8 mg dose of nitroglycerin aerosol\u003c\/strong\u003e (a medication that widens blood vessels) three minutes before scanning.\u003c\/li\u003e\n  \u003cli\u003eScans were performed using a \u003cstrong\u003ethird-generation dual-source CT scanner\u003c\/strong\u003e (SOMATOM Force; Siemens Healthcare, Forchheim, Germany), equipped with a fully integrated circuit detector system.\u003c\/li\u003e\n  \u003cli\u003eThe contrast agent used was \u003cstrong\u003eOmnipaque (350 mg\/mL iodine concentration)\u003c\/strong\u003e, injected through a vein in the arm using a power injector with a 20-gauge needle.\u003c\/li\u003e\n  \u003cli\u003eThe scan was acquired in a \u003cstrong\u003ecaudo-cranial direction\u003c\/strong\u003e (from the diaphragm up to the top of the head), covering the entire area of the heart, neck, and brain in one pass.\u003c\/li\u003e\n  \u003cli\u003eAn automated \u003cstrong\u003ebolus-tracking technique\u003c\/strong\u003e was used to time the scan precisely when the contrast agent reached the arteries of interest (with a signal attenuation threshold of 100 Hounsfield units in the ascending aorta).\u003c\/li\u003e\n  \u003cli\u003eImage acquisition was synchronized to the patient's heart rhythm using \u003cstrong\u003eelectrocardiogram (ECG) gating\u003c\/strong\u003e, with images captured at 30% of the RR interval (for heart rates above 65 bpm) or 60% of the RR interval (for heart rates at or below 65 bpm).\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003eKey scanning parameters included:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTurbo high-pitch acquisition mode (a very fast scanning technique)\u003c\/li\u003e\n  \u003cli\u003eDetector collimation of 2 × 192 × 0.6 mm\u003c\/li\u003e\n  \u003cli\u003eRotation time of 0.25 seconds\u003c\/li\u003e\n  \u003cli\u003ePitch of 3.2 (high pitch means faster table movement)\u003c\/li\u003e\n  \u003cli\u003eAutomated tube voltage selection and automated tube current modulation (both designed to minimize radiation exposure)\u003c\/li\u003e\n  \u003cli\u003eContrast volume of only \u003cstrong\u003e45 mL\u003c\/strong\u003e at a flow rate of 4.5 mL\/s, followed by \u003cstrong\u003e45 mL of saline solution\u003c\/strong\u003e at the same flow rate\u003c\/li\u003e\n  \u003cli\u003eTotal scan time of \u003cstrong\u003e0.78 ± 0.12 seconds\u003c\/strong\u003e—less than one second for the entire heart-to-brain scan\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eImages were reconstructed using \u003cstrong\u003eadvanced modeled iterative reconstruction\u003c\/strong\u003e at a strength level of 3, with a medium sharp convolution kernel and 0.6-mm section thickness. Multiple image display techniques were used to evaluate the arteries, including curved planar reformatting (thickness 8.0 mm), maximum intensity projection (thickness 10.0 mm), multiplanar reformatting, and volume rendering.\u003c\/p\u003e\n\n\u003ch3\u003eHow Arteries and Plaques Were Analyzed\u003c\/h3\u003e\n\n\u003cp\u003eThe researchers used internationally recognized anatomical standards to divide the arteries into segments for analysis:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThe \u003cstrong\u003ecoronary tree\u003c\/strong\u003e was subdivided according to \u003cstrong\u003eAmerican Heart Association (AHA) standards\u003c\/strong\u003e, with segments 1–4 designated as the right coronary artery, segment 5 as the left main coronary artery, segments 6–10 as the left anterior descending artery, segments 11–15 as the left circumflex artery, and segment 16 as an intermediate artery (if present).\u003c\/li\u003e\n  \u003cli\u003eThe \u003cstrong\u003ecarotid and cerebrovascular arteries\u003c\/strong\u003e were divided into \u003cstrong\u003e40 segments\u003c\/strong\u003e according to the criteria of the \u003cstrong\u003eNorth American Symptomatic Carotid Endarterectomy Trial (NASCET)\u003c\/strong\u003e. These included the common carotid arteries, carotid bifurcations, external carotid arteries, internal carotid arteries, vertebral arteries, basilar artery, anterior cerebral arteries, middle cerebral arteries, posterior cerebral arteries, anterior communicating artery, and posterior communicating arteries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eEach vascular segment was evaluated for the presence of plaque, and plaques were classified into three types:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCalcified plaques\u003c\/strong\u003e—hard plaques containing calcium deposits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNon-calcified plaques\u003c\/strong\u003e—soft plaques without calcium, which are considered more vulnerable to rupture\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMixed plaques\u003c\/strong\u003e—plaques containing both calcified and non-calcified components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCoronary artery narrowing (stenosis) was quantified using six predefined categories according to the \u003cstrong\u003eCoronary Artery Disease Reporting and Data System (CAD-RADS)\u003c\/strong\u003e: 0%, 1–24%, 25–49%, 50–69%, 70–99%, or 100% (complete blockage). The degree of stenosis was measured as the ratio between the luminal diameter at the obstructed site and the luminal diameter of the most normal-appearing segment immediately upstream of the plaque.\u003c\/p\u003e\n\n\u003ch3\u003eRadiation Dose Measurement\u003c\/h3\u003e\n\n\u003cp\u003eThe researchers carefully tracked radiation exposure for every patient. The volume CT dose index and dose–length product (DLP) were automatically recorded at the end of each scan. The effective radiation dose (in millisieverts, mSv) was calculated by multiplying the DLP by conversion factors of 0.026 mSv·mGy⁻¹·cm⁻¹ for cardiovascular imaging and 0.0031 mSv·mGy⁻¹·cm⁻¹ for head and neck imaging.\u003c\/p\u003e\n\n\u003cp\u003eThe average DLP was \u003cstrong\u003e138.57 ± 31.6 mGy·cm\u003c\/strong\u003e, which translates to a calculated effective radiation dose of \u003cstrong\u003e1.48 ± 0.33 mSv\u003c\/strong\u003e (range: 0.79–2.77 mSv). To put this in perspective, a standard chest CT typically delivers around 7 mSv, and the average American receives about 3 mSv per year from natural background radiation. This new protocol therefore represents a very low radiation exposure.\u003c\/p\u003e\n\n\u003ch3\u003eStatistical Analysis\u003c\/h3\u003e\n\n\u003cp\u003eThe research team used standard statistical methods to analyze the data. Continuous variables were presented as mean ± standard deviation (or median with interquartile range for non-normally distributed data). Categorical variables were shown as numbers and percentages. The Student's t-test and Wilcoxon rank-sum test were used to compare continuous variables, while chi-squared and Fisher's exact tests were used for categorical variables. To identify independent risk factors for plaque, they used \u003cstrong\u003emultivariate logistic regression analysis\u003c\/strong\u003e, reporting results as \u003cstrong\u003eodds ratios (OR) with 95% confidence intervals (CI)\u003c\/strong\u003e. A P-value of less than 0.05 was considered statistically significant.\u003c\/p\u003e\n\n\u003ch2 id=\"findings\"\u003eKey Findings: What the Researchers Discovered\u003c\/h2\u003e\n\n\u003ch3\u003ePatient Characteristics: The Study Population at a Glance\u003c\/h3\u003e\n\n\u003cp\u003eThe 300 patients in the study had a mean age of \u003cstrong\u003e56 ± 10 years\u003c\/strong\u003e (range: 37–92 years). Of these, \u003cstrong\u003e66% (199 out of 300) were male\u003c\/strong\u003e. The mean heart rate during the CTA scan was 74 ± 11 beats per minute (range: 40–128 bpm).\u003c\/p\u003e\n\n\u003cp\u003eWhen the researchers compared patients with plaques to those without plaques, several notable differences emerged:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePatients with plaques were \u003cstrong\u003eolder\u003c\/strong\u003e (58 ± 10 years vs. 53 ± 9 years, P = 0.001)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHypertension\u003c\/strong\u003e was more common in the plaque group (35.4% vs. 12.6%, P = 0.001)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiabetes\u003c\/strong\u003e was significantly more common in the plaque group (28.6% vs. 3.6%, P = 0.001)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFasting glucose\u003c\/strong\u003e was higher in the plaque group (5.58 ± 2.50 vs. 4.76 ± 1.31 mmol\/L, P = 0.001)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal cholesterol\u003c\/strong\u003e was higher in the plaque group (1.82 ± 1.14 vs. 1.66 ± 0.94 mmol\/L, P = 0.004)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLDL cholesterol\u003c\/strong\u003e (the \"bad\" cholesterol) was higher in the plaque group (2.55 ± 0.90 vs. 2.33 ± 0.59 mmol\/L, P = 0.04)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiastolic blood pressure\u003c\/strong\u003e was slightly higher in the plaque group (81.73 ± 8.80 vs. 79.48 ± 7.65 mm Hg, P = 0.028)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThere were no significant differences between the groups in terms of gender ratio (P = 0.059), heart rate, systolic blood pressure, body mass index (BMI), education level, smoking, alcohol use, physical activity, HDL cholesterol, uric acid, or creatinine levels.\u003c\/p\u003e\n\n\u003ch3\u003eThe Prevalence of Plaque: How Common Was Atherosclerosis?\u003c\/h3\u003e\n\n\u003cp\u003eThe prevalence of plaque in this asymptomatic population—people with risk factors but no symptoms—was striking:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e189 out of 300 patients (63%)\u003c\/strong\u003e had plaques in their coronary and\/or cerebral arteries\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e111 patients (37%)\u003c\/strong\u003e had no detectable plaques\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e180 patients (60%)\u003c\/strong\u003e had plaques in the coronary (heart) arteries\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e52 patients (17.3%)\u003c\/strong\u003e had plaques in the carotid and cerebral (brain) arteries\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e43 patients (14.3%)\u003c\/strong\u003e had plaques in \u003cem\u003eboth\u003c\/em\u003e the coronary and carotid\/cerebral territories simultaneously\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAmong the 189 patients who had plaques, the distribution was as follows:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e72.5%\u003c\/strong\u003e had plaques only in the coronary arteries\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e22.8%\u003c\/strong\u003e had plaques only in the cerebrovascular arteries\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4.8%\u003c\/strong\u003e had plaques in both territories\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese numbers reveal an important clinical fact: while coronary plaques are very common, the majority of patients with coronary plaques (76%) do \u003cem\u003enot\u003c\/em\u003e have detectable cerebrovascular plaques. Conversely, patients who do have cerebrovascular plaques are highly likely to also have coronary disease.\u003c\/p\u003e\n\n\u003ch3\u003eThe Link Between Heart and Brain Artery Plaques\u003c\/h3\u003e\n\n\u003cp\u003eThe study found a statistically significant \u003cstrong\u003eassociation between plaque formation in the coronary arteries and plaque formation in the carotid–cerebral arteries\u003c\/strong\u003e (χ² = 14.22, P = 0.001). This means that a patient who has plaques in one vascular territory is significantly more likely to have plaques in the other territory, compared to what would be expected by chance alone.\u003c\/p\u003e\n\n\u003cp\u003eWhen the researchers examined the specific plaque types, they found particularly strong associations:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCalcified plaques\u003c\/strong\u003e in the carotid–cerebral arteries were strongly associated with calcified plaques in the coronary arteries (χ² = 20.71, P = 0.001). In plain terms, if a patient has hard, calcified plaque in their neck or brain arteries, they are very likely to also have calcified plaque in their heart arteries.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMixed plaques\u003c\/strong\u003e (containing both calcified and soft components) also showed a strong association between the two territories (χ² = 8.96, P = 0.003).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNon-calcified plaques\u003c\/strong\u003e (soft, vulnerable plaques) did \u003cem\u003enot\u003c\/em\u003e show a statistically significant association between the coronary and carotid–cerebral arteries (χ² = 2.93, P = 0.087). This suggests that the presence of a soft plaque in one territory does not reliably predict a soft plaque in the other.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis finding is clinically important. It indicates that the type of plaque a patient develops may be somewhat specific to each vascular bed, even though the overall disease burden tends to track together.\u003c\/p\u003e\n\n\u003ch3\u003eRisk Factors for Non-Calcified Plaques\u003c\/h3\u003e\n\n\u003cp\u003eThe multivariate logistic regression analysis examined which cardiovascular risk factors were independently associated with plaque formation, adjusting for other variables. The analysis included three statistical models: a crude (unadjusted) model, a model adjusted for age, gender, BMI, uric acid, and creatinine, and a fully adjusted model that also accounted for all other cardiovascular and cerebrovascular risk factors.\u003c\/p\u003e\n\n\u003cp\u003eFor \u003cstrong\u003enon-calcified plaques in the coronary arteries\u003c\/strong\u003e, two risk factors were significant across \u003cem\u003eall\u003c\/em\u003e statistical models:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbnormal blood glucose (fasting glucose):\u003c\/strong\u003e odds ratio = 1.44, 95% CI = 0.12–0.62, P = 0.01. This means higher blood sugar levels were consistently associated with a greater likelihood of having soft coronary plaque, even after adjusting for other risk factors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbnormal total cholesterol:\u003c\/strong\u003e odds ratio = 1.28, 95% CI = 0.07–0.46, P = 0.01. Higher total cholesterol was also consistently linked to the presence of non-calcified coronary plaque.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor \u003cstrong\u003enon-calcified plaques in the carotid–cerebral arteries\u003c\/strong\u003e, abnormal blood glucose was identified as a risk factor, but only in the crude (unadjusted) model (odds ratio = 1.44, 95% CI = 0.12–0.62, P = 0.01). After adjusting for other factors, this association lost statistical significance (fully adjusted model: OR = 1.32, P = 0.13). This suggests that while blood sugar is an important contributor to brain-vessel soft plaque, its independent effect may be mediated through other risk factors like age, blood pressure, and cholesterol.\u003c\/p\u003e\n\n\u003ch3\u003eRisk Factors for Calcified Plaques\u003c\/h3\u003e\n\n\u003cp\u003eFor \u003cstrong\u003ecalcified plaques in the coronary arteries\u003c\/strong\u003e, the analysis identified two risk factors that were significant across all models:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbnormal blood glucose:\u003c\/strong\u003e odds ratio = 1.43, 95% CI = 0.11–0.61, P = 0.01\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbnormal systolic blood pressure\u003c\/strong\u003e (the top number in a blood pressure reading): odds ratio = 1.02, 95% CI = 0.01–0.04, P = 0.02. This means that for every unit increase in systolic blood pressure, the odds of having calcified coronary plaque increased by 2%.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese findings underscore the central role of \u003cstrong\u003eblood sugar control\u003c\/strong\u003e in preventing atherosclerosis. Abnormal glucose metabolism was the only risk factor that appeared consistently across both plaque types (calcified and non-calcified) and across multiple statistical models. It is worth noting that in the fully adjusted model for non-calcified coronary plaques, uric acid also appeared as a protective factor (OR = 0.84, 95% CI = −0.34 to −0.01, P = 0.04), though this finding is complex and requires further investigation.\u003c\/p\u003e\n\n\u003ch2 id=\"implications\"\u003eWhat This Means for Patients and Medical Practice\u003c\/h2\u003e\n\n\u003cp\u003eThis research demonstrates that a \u003cstrong\u003esingle, one-step CT scan can effectively evaluate atherosclerosis in all three major vascular territories\u003c\/strong\u003e—the coronary arteries feeding the heart, the carotid arteries in the neck, and the cerebral arteries inside the brain—using a remarkably low radiation dose.\u003c\/p\u003e\n\n\u003cp\u003eThe radiation exposure of this technique deserves special emphasis. The total effective radiation dose of the combined scan was \u003cstrong\u003e1.48 ± 0.33 mSv\u003c\/strong\u003e. This is dramatically lower than other combined imaging approaches reported in the literature:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTognolini and colleagues reported an average radiation dose of \u003cstrong\u003e4.3 mSv\u003c\/strong\u003e for a combined carotid and coronary CTA protocol\u003c\/li\u003e\n  \u003cli\u003eYasmin and colleagues reported doses of \u003cstrong\u003e7.3 mSv\u003c\/strong\u003e and \u003cstrong\u003e3.8 mSv\u003c\/strong\u003e for separate coronary and carotid CTA scans, respectively\u003c\/li\u003e\n  \u003cli\u003eThe new ICCC-CTA technique also uses less contrast agent (\u003cstrong\u003e45 mL\u003c\/strong\u003e vs. \u003cstrong\u003e100 mL\u003c\/strong\u003e for the Tognolini protocol), which reduces the strain on the kidneys\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor patients, this means a more thorough evaluation of vascular health with less radiation exposure and less contrast dye entering the body. The ability to perform a \"whole-artery check\" in under one second of scanning time is also more comfortable for patients and reduces motion artifacts that can degrade image quality.\u003c\/p\u003e\n\n\u003cp\u003eThe finding that \u003cstrong\u003eabnormal blood glucose is the most consistent risk factor\u003c\/strong\u003e for both calcified and non-calcified plaques, in both the coronary and cerebrovascular territories, has important preventive implications. Diabetes and prediabetes are modifiable conditions—lifestyle changes, including diet, exercise, and weight management, along with appropriate medications, can significantly improve blood sugar control. This study reinforces that managing blood sugar is crucial not just for preventing heart attacks, but also for preventing strokes.\u003c\/p\u003e\n\n\u003cp\u003eSimilarly, the association of \u003cstrong\u003eelevated total cholesterol\u003c\/strong\u003e with non-calcified coronary plaques highlights the importance of cholesterol screening and management, including the use of statin therapy when appropriate. Soft (non-calcified) plaques are considered the most dangerous type because they are more prone to rupture, and ruptured plaque is what triggers most heart attacks. Early detection of these vulnerable plaques could enable more aggressive preventive treatment.\u003c\/p\u003e\n\n\u003ch2 id=\"limitations\"\u003eStudy Limitations: What This Research Cannot Tell Us\u003c\/h2\u003e\n\n\u003cp\u003eIt is important to understand what this study does and does not prove. Every research study has limitations, and this one is no exception:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAsymptomatic population only:\u003c\/strong\u003e The study enrolled only patients with cardiovascular risk factors who had no symptoms of heart or brain disease. The findings may not apply to patients who already have symptomatic cardiovascular or cerebrovascular disease, or to the general population without any risk factors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCross-sectional design:\u003c\/strong\u003e The study is a single-timepoint (cross-sectional) analysis. It shows associations between risk factors and plaque presence, but it cannot prove causation—that is, it cannot prove that abnormal blood sugar \u003cem\u003ecaused\u003c\/em\u003e the plaque, only that they are linked.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo long-term follow-up:\u003c\/strong\u003e The study did not track patients over time to see who eventually developed heart attacks or strokes. Future research with longitudinal follow-up is needed to confirm that detecting plaques with ICCC-CTA actually reduces vascular events.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample size and single-center design:\u003c\/strong\u003e With 300 patients from specific Chinese medical centers, the results may not be fully generalizable to other populations with different ethnic, dietary, or healthcare backgrounds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRadiation dose estimation:\u003c\/strong\u003e The effective radiation dose was calculated using conversion factors from previous studies rather than measured directly, which introduces some potential estimation error.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNon-calcified plaque detection limits:\u003c\/strong\u003e CT angiography is excellent at detecting calcified plaque but can be less sensitive for some non-calcified plaque types. Some small soft plaques may have been missed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTable data incompleteness:\u003c\/strong\u003e The published article references risk factor data for calcified carotid-cerebral plaques (Table 6), which is not fully detailed in the available text, so some specific numerical associations for this subgroup were not available for analysis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 id=\"recommendations\"\u003eRecommendations for Patients\u003c\/h2\u003e\n\n\u003cp\u003eBased on this research and the broader body of medical evidence, here are practical steps patients can consider:\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKnow your numbers.\u003c\/strong\u003e This study reinforces that blood sugar and cholesterol levels are powerful predictors of plaque buildup. Ask your doctor what your fasting glucose, total cholesterol, LDL (\"bad\") cholesterol, and blood pressure levels are—and what they should be for your specific health profile.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTake blood sugar seriously, even if you don't have diabetes.\u003c\/strong\u003e This study found that abnormal blood glucose was the most consistent risk factor for all plaque types. If your fasting glucose is creeping upward (in the \"prediabetes\" range), this is a red flag that should not be ignored. Dietary changes—particularly reducing refined carbohydrates and added sugars—combined with regular physical activity can significantly improve glucose metabolism.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl your blood pressure.\u003c\/strong\u003e Elevated systolic blood pressure was an independent risk factor for calcified coronary plaque. The American Heart Association recommends maintaining blood pressure below 120\/80 mm Hg for most adults. Home blood pressure monitoring can help you track progress.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiscuss cholesterol management with your doctor.\u003c\/strong\u003e Total cholesterol elevation was independently associated with non-calcified (vulnerable) coronary plaque. If your cholesterol is high, lifestyle changes (diet, exercise) and, when appropriate, statin therapy can substantially reduce your cardiovascular risk.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIf you have multiple risk factors, talk to your doctor about advanced screening.\u003c\/strong\u003e The ICCC-CTA technique is an emerging tool that could, in one low-radiation scan, reveal whether you have plaque in your heart, neck, or brain arteries. While this test is not yet a standard screening tool for everyone, it may be valuable for people with multiple risk factors who want a more complete picture of their vascular health.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo not smoke, and limit alcohol.\u003c\/strong\u003e While smoking and alcohol use did not reach statistical significance in this particular multivariate analysis, the broader medical literature overwhelmingly establishes them as major contributors to atherosclerosis.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnderstand that plaque in one area matters for the whole body.\u003c\/strong\u003e Because plaque tends to affect multiple vascular beds, a diagnosis of coronary artery disease should prompt evaluation of stroke risk—and vice versa. If you know you have plaque in one territory, your doctor should assess the others.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003eAs with all medical decisions, individual risk assessment should be discussed with your healthcare provider. The right screening and prevention strategy depends on your complete medical picture, including age, family history, and existing conditions.\u003c\/p\u003e\n\n\u003c!-- ddn:faq:start --\u003e\n\u003ch2 id=\"ddn-faq\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a one-step whole-body artery scan?\u003c\/h3\u003e\n\u003cp\u003eIt is a specialized CT scan called integrated coronary–carotid–cerebral computed tomography angiography (ICCC-CTA). It images the heart arteries, neck arteries, and brain arteries in a single, fast scan. The study tested a low-radiation version that took less than one second of scan time and used only 45 mL of contrast dye.\u003c\/p\u003e\n\u003ch3\u003eWhat were the main findings about plaque buildup?\u003c\/h3\u003e\n\u003cp\u003eIn this group of 300 patients, 63% had plaque in their heart or brain arteries. Specifically, 60% had coronary artery plaque, and 17.3% had carotid or cerebral artery plaque. Higher blood sugar and total cholesterol levels were linked to plaque, especially soft, non-calcified plaques, which are more vulnerable to rupture.\u003c\/p\u003e\n\u003ch3\u003eHow low was the radiation dose for this scan?\u003c\/h3\u003e\n\u003cp\u003eThe average radiation dose was 1.48 millisieverts (mSv), with a range of 0.79 to 2.77 mSv. For context, a standard chest CT delivers about 7 mSv, and the average American gets about 3 mSv per year from background radiation. So this combined scan used a very low dose.\u003c\/p\u003e\n\u003ch3\u003eWhat does this scan mean for someone with risk factors?\u003c\/h3\u003e\n\u003cp\u003eIf you have risk factors like high blood sugar, high cholesterol, or high blood pressure, this scan could potentially detect plaque in your heart or brain arteries before symptoms appear. The study suggests it may help identify at-risk patients earlier and guide prevention. However, it is not yet a standard screening test for everyone.\u003c\/p\u003e\n\u003ch3\u003eWhat are the limitations of this study?\u003c\/h3\u003e\n\u003cp\u003eThe study only included patients without symptoms and with risk factors, so results may not apply to everyone. It is a cross-sectional look at one point in time, so it cannot prove that high blood sugar or cholesterol caused the plaque. Also, patients were not followed over time to see who later had heart attacks or strokes.\u003c\/p\u003e\n\u003ch3\u003eWhat practical steps should I take based on this research?\u003c\/h3\u003e\n\u003cp\u003eKnow your blood sugar, cholesterol, and blood pressure numbers. This study found abnormal blood glucose was the most consistent risk factor for plaque, so managing prediabetes or diabetes is important. Control blood pressure and discuss cholesterol management with your doctor. If you have multiple risk factors, ask about advanced screening options.\u003c\/p\u003e\n\u003c!-- ddn:faq:end --\u003e\n\n\u003ch2 id=\"source\"\u003eSource Information\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eOriginal Article Title:\u003c\/strong\u003e One-step integrated coronary–carotid–cerebral computed tomography angiography to evaluate cardiovascular and cerebrovascular atherosclerosis\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAuthors:\u003c\/strong\u003e Shurong Liu, Zhen Zhang, Baoliang Liu, Shanshan Zhou, Jianan Xie, Ruijuan Han, and Sun Kai\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eJournal:\u003c\/strong\u003e BMC Cardiovascular Disorders (2023) 23:367\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDOI:\u003c\/strong\u003e https:\/\/doi.org\/10.1186\/s12872-023-03343-3\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePublication Date:\u003c\/strong\u003e 2023\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEthics Approval:\u003c\/strong\u003e The study was approved by the ethics committee of Inner Mongolia Medical University of China (No. YKD2015061) and The Third People's Hospital of Longgang District, Shenzhen. All procedures followed the Declaration of Helsinki, and all patients provided written informed consent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFunding\/Disclosures:\u003c\/strong\u003e The authors declare no competing interests. The study was published under a Creative Commons Attribution 4.0 International License.\u003c\/p\u003e\n\n\u003cp\u003eThis patient-friendly article is based on peer-reviewed research published in an open-access medical journal. The original article can be accessed freely online via the DOI link above. This translation is intended for educational purposes and does not constitute medical advice. Patients should consult their healthcare providers regarding any decisions about screening, diagnosis, or treatment.\u003c\/p\u003e","brand":"DiagnosticDetectives.Com","offers":[{"title":"Default Title","offer_id":47427811868828,"sku":null,"price":0.0,"currency_code":"CHF","in_stock":true}],"url":"https:\/\/diagnosticdetectives.ch\/fr\/products\/one-step-whole-body-artery-scan-a-new-way-to-detect-heart-and-brain-vessel-disease","provider":"DiagnosticDetectives.Com","version":"1.0","type":"link"}