Left ventricular thrombus attenuation characterization in cardiac computed tomography angiography

Journal of Cardiovascular Computed Tomography
Márcio Sommer BittencourtTobias Pflederer

Abstract

Because of their similar visual appearance, differentiation of left ventricular thrombotic material and myocardial wall can be difficult in contrast-enhanced coronary computed tomography (CT) angiography. We identified typical thrombi attenuation of left ventricular thrombi with the use of CT measurement. Over a time period of 6 years, we retrospectively identified 31 patients who showed a left ventricular thrombus in CT angiography datasets. Patients underwent routine contrast cardiac CT to investigate coronary artery disease. CT attenuation of each thrombus was assessed in the 4-chamber view. CT densities were also determined in the ascending aorta, left ventricle, and myocardial wall both in the mid-septal and mid-lateral segments. The mean CT attenuation of thrombi and the difference between attenuation in thrombi, left ventricular cavity, and myocardial wall were determined. The ratio of attenuation values in thrombus versus aorta and myocardium versus aorta were also determined. Mean (±SD) CT attenuation of all left ventricular thrombi in 31 patients was 43.2 ± 15.3 HU (range, 25-80 HU). Mean CT densities of septal and lateral myocardial wall were 102.9 ± 23.1 HU (range, 63-155 HU) and 99.3 ± 28.7 HU (range, 72-191 HU), r...Continue Reading

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Citations

Jul 16, 2014·Current Cardiovascular Imaging Reports·David KassopTodd C Villines
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Dec 12, 2020·Journal of Cardiology Cases·Yasuhisa NakaoOsamu Yamaguchi

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