对冠状动脉损伤特异性缺血的定量流量比率和CT-FFR的诊断性能
Wenqi Han1, Lei Liang1, Tuo Han2
1Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China.
Scientific reports
|July 23, 2024
概括
定量流量比率 (QFR) 和计算机断层扫描血管学衍生FFR (CT-FFR) 准确检测冠状动脉损伤特异性缺血. 这两种非侵入性方法都与侵入性FFR有很强的相关性,提供出色的诊断性能.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 诊断性表现 诊断性表现
背景情况:
- 分流储备 (FFR) 是评估冠状动脉损伤特异性缺血的黄金标准,但具有侵入性和成本.
- 像定量流量比率 (QFR) 和计算机断层扫描血管学衍生FFR (CT-FFR) 这样的非侵入性替代方案显示出评估缺血的前景.
研究的目的:
- 评估QFR和CT-FFR在预测冠状动脉病变特异性缺血的诊断性能.
- 将QFR和CT-FFR与侵入性FFR的参考标准进行比较.
主要方法:
- 怀疑冠状动脉疾病和30-90%直径狭窄的患者接受了冠状动脉CT血管造影.
- 在CT血管造影后15天内进行了侵入性FFR测量.
- 对QFR (≤0.80) 和CT-FFR (≤0.80) 与FFR (≤0.80) 的诊断性能指标 (准确度,灵敏度,特异性,AUC) 进行了计算.
主要成果:
- QFR表现出高的诊断准确性 (92.2%),灵敏度 (87.2%) 和特异性 (96.4%),其AUC为0.987.
- CT-FFR显示出出色的诊断准确性 (96.1%),灵敏度 (95.7%) 和特异性 (96.4%),AUC为0.967.
- 无论是QFR还是CT-FFR,都与侵入性FFR有很好的相关性 (QFR的r=0.856,CT-FFR的r=0.816).
结论:
- QFR和CT-FFR与侵入性FFR有很强的相关性.
- 这两种非侵入性方法都为检测冠状动脉病变特异性缺血提供了卓越的临床诊断性能.
- QFR和CT-FFR代表了评估冠状动脉疾病严重程度的有价值,不那么侵入性的替代方案.
相关概念视频
01:28Imaging 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...
01:30Acute 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...
01:20Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...