心血管磁共振用于心脏移植后的排斥监测
Chris Anthony1, Muhammad Imran1, Jim Pouliopoulos1,2,3
1Heart and Lung Transplant Unit (C.A., M.I., J.P., S.E., J.I., M.R.Q., R.M.G., J.M., C.H., E.K., K.M., A.M.K., C.S.H., P.S.M., A.J.), St. Vincent's Hospital, Sydney, Australia.
Circulation
|May 27, 2022
概括
心血管磁共振 (CMR) 为心脏移植患者的急性心脏异位排斥 (ACAR) 提供了可行的非侵入性监测策略. 与传统心脏内膜活检 (EMB) 相比,这种方法显著减少了住院和感染.
科学领域:
- 心脏病学
- 移植医学
- 医学成像
背景情况:
- 内心肌活检 (EMB) 是急性心脏异位排斥 (ACAR) 监测的黄金标准,但具有侵入性.
- 基于心血管磁共振 (CMR) 的心肌组织表征可以检测心肌炎.
- 心脏移植后第一年ACAR监测的CMR可行性尚未得到充分描述.
研究的目的:
- 在成年心脏移植患者中评估基于CMR的ACAR监测的可行性.
- 在移植后的第一年,将基于CMR的监测与基于EMB的传统监测进行比较.
- 在检测ACAR等级时确定CMR的协议和截止值.
主要方法:
- 进行了一项前性,随机的非劣势试点研究.
- 成年心脏移植患者被随机分配到基于CMR或EMB的监测中,从移植后4周开始.
- 基于CMR的多参数映射用于排斥评估,临床终点在52周评估.
主要成果:
- 基于CMR的多参数评估表明ACAR检测具有很高的可重复性和可靠性 (AUC为0. 92,灵敏度为93%,特异性为92%).
- 与EMB组相比,CMR组的住院率 (45%vs90%) 和感染率 (35%vs70%) 显著降低.
- 在CMR监测组中,对EMB的要求降低了94%.
结论:
- 在心脏移植后的第一年,基于CMR的监测策略是可行的.
- CMR监测是一种可行的EMB替代方案,可降低住院和感染率.
- 这项研究支持CMR在常规ACAR监测中取代侵入性EMB的潜力.
相关概念视频
01:21Imaging Studies for Cardiovascular System IV: CMRI
144
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
144
01:28Imaging Studies for Cardiovascular System V: CT
75
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...
75