Shriki Jabi Elijah, Prosper Ashley Elizabeth, Shinbane Jerold, Colletti Patrick M
Department of Radiology, University of Washington, Seattle, United States.
Department of Radiology, University of California Los Angeles, California, United States.
J Clin Imaging Sci. 2024 Nov 21;14:45. doi: 10.25259/JCIS_114_2024. eCollection 2024.
The objective of this study was to determine how often myocardial infarctions are retrospectively visible on conventional, non-gated, non-cardiac computed tomography (CT) scans. Our goal was to evaluate a cohort of patients with myocardial infarctions visible on cardiac magnetic resonance imaging (MRI) to determine how often the area of infarction was retrospectively visible by preceding, conventional CT. We also sought to evaluate how often the diagnosis of myocardial infarction was reported at the time of initial study review.
The Institutional Review Board approval was obtained for the creation and retrospective analysis of a database of patients undergoing cardiac MRI. We started with a cohort of 252 patients who had undergone cardiac MRI at our institution, over a 4-year period. We identified 160 patients who had a myocardial infarct visible on MRI.
Of the 160 patients who had been identified as having an infarct on cardiac MRI, 54 patients had undergone a recent (within 30 days) conventional CT scan, usually done for non-cardiac indications. In addition to the review of reports, non-cardiac CT scans were also evaluated retrospectively by two experienced, cardiothoracic imaging physicians, including a radiologist and a cardiologist. In 26 of these patients (48.1%), an infarct was visible on the CT images. In 12 of these 26 cases (46.1%), the infarct was noted in the initial report. In the remaining 14 of these 26 cases (53.8%), the infarct was unrecognized at the time of initial study interpretation.
Our retrospective analysis demonstrates that myocardial infarctions may be frequently observed on non-gated, non-cardiac CT scans but may be underrecognized and under-reported.
本研究的目的是确定在传统的、非门控的、非心脏计算机断层扫描（CT）上心肌梗死能够被回顾性发现的频率。我们的目标是评估一组在心脏磁共振成像（MRI）上可见心肌梗死的患者，以确定梗死区域通过之前的传统CT进行回顾性发现的频率。我们还试图评估在初始研究审查时心肌梗死的诊断报告频率。
获得机构审查委员会批准，以创建和回顾性分析接受心脏MRI检查的患者数据库。我们从4年内在我们机构接受心脏MRI检查的252名患者队列开始。我们确定了160名在MRI上可见心肌梗死的患者。
在160名被确定在心脏MRI上有梗死的患者中，54名患者近期（30天内）接受了传统CT扫描，通常是因非心脏指征进行的。除了审查报告外，两名经验丰富的心胸影像医生（一名放射科医生和一名心脏病专家）还对非心脏CT扫描进行了回顾性评估。在这些患者中的26名（48.1%），CT图像上可见梗死。在这26例中的12例（46.1%），梗死在初始报告中被提及。在这26例中的其余14例（53.8%），梗死在初始研究解读时未被识别。
我们的回顾性分析表明，在非门控的、非心脏CT扫描上可能经常观察到心肌梗死，但可能未得到充分认识和报告。
