相关实验视频

Updated: Jun 10, 2025

Quantification of Atherosclerotic Plaque Activity and Vascular Inflammation using [18-F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography FDG-PET/CT

Quantification of Atherosclerotic Plaque Activity and Vascular Inflammation using [18-F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography FDG-PET/CT

Published on: May 2, 2012

通过双层光谱探测器计算机断层扫描 (SDCT) 确定的肝脏多参数定量指标与冠状动脉斑块得分的关联

Min Wang¹, Yue Ma¹, Yu Lan¹

¹Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China.

Quantitative imaging in medicine and surgery

|October 21, 2024

概括

光谱探测器计算断层扫描 (SDCT) 有效原子数 (Zeff) 有效量化肝脏脂肪,预测冠状动脉斑块的范围和严重程度. 较高的泽夫值与冠状动脉斑块负担增加相关,有助于风险评估.

科学领域:

心血管成像 - 心血管成像
放射学放射学是一门学科.
肝硬化研究肝硬化研究

背景情况:

肝硬化是冠状动脉斑块发展的已知危险因素.
光谱探测器计算机断层扫描 (SDCT) 提供了肝硬化症的先进定量分析.

研究的目的:

调查从SDCT获得的量化肝脏指标与冠状动脉斑块的程度/严重程度之间的关联.
为了确定SDCT衍生的肝脂肪量化是否可以预测冠状动脉样硬化.

主要方法:

对644名未经增强SDCT和冠状动脉CT血管造影的患者进行横截面研究.
使用已建立的评分系统进行评估的斑块范围 (SIS) 和严重程度 (SSS).
使用SDCT参数,包括有效原子数 (Zeff) 的量化肝脂肪.
后勤回归分析,以确定影响高SIS和SSS的因素.

主要成果:

有效原子号 (Zeff) 与SIS (r=-0.422) 和SSS (r=-0.346) 显示出显著的反向相关性.
较高的泽夫四分位数独立地与高SIS和高SSS的概率增加有关.
这种关联在年轻 (<60岁) 的男性患者中尤为明显,他们的内脏和皮下脂肪组织比率较低.

结论:

由SDCT衍生的Zeff是冠状动脉斑块范围和严重性的重要独立预测因子.
使用SDCT进行量化肝脂肪评估,有可能评估冠状动脉样硬化风险和预后.

关键词:

分段参与得分 (SIS)冠状动脉斑点得分冠状动脉斑点得分分段性狭窄得分 (SSS) 的分数 (SSS)光谱探测器计算机断层扫描 (SDCT)

更多相关视频

Author Spotlight: Advancing Cardiovascular Imaging - Introducing the Spatially Weighted Calcium Score for Early Disease Detection

Author Spotlight: Advancing Cardiovascular Imaging - Introducing the Spatially Weighted Calcium Score for Early Disease Detection

Published on: September 22, 2023

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

相关概念视频

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...

Imaging Studies for Cardiovascular System V: CT

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...

Ultrasound II: Endoscopic Ultrasound and FibroScan

Ultrasound II: Endoscopic Ultrasound and FibroScan

Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):

Acute Coronary Syndrome III: Diagnostic studies

Acute Coronary Syndrome III: Diagnostic studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...