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屏气电影磁共振成像评估左心室容积和质量。

Evaluation of left ventricular volume and mass with breath-hold cine MR imaging.

作者信息

Sakuma H, Fujita N, Foo T K, Caputo G R, Nelson S J, Hartiala J, Shimakawa A, Higgins C B

机构信息

Department of Radiology, University of California, San Francisco 94143-0628.

出版信息

Radiology. 1993 Aug;188(2):377-80. doi: 10.1148/radiology.188.2.8327681.

Abstract

Left ventricular (LV) volumes and mass were evaluated in 10 healthy volunteers with breath-hold cine magnetic resonance (MR) imaging. The results were compared with those obtained with conventional cine MR imaging. The breath-hold studies showed no ghosting artifact, and cardiac edges were clearly identified because of the reduced blurring. Measurements of LV end-diastolic volume (LVEDV), LV end-systolic volume (LVESV), and LV mass obtained with breath-hold cine MR imaging showed close correlation with those obtained with conventional cine MR imaging (r = .98, .97, and .99, respectively). The interobserver variabilities for LVEDV, LVESV, and LV mass determined with breath-hold cine MR imaging (4.0%, 8.0%, and 3.7%, respectively) were equal to or less than those determined with conventional cine MR imaging (4.0%, 8.6%, and 5.0%, respectively). The authors conclude that breath-hold cine MR imaging is highly useful because an accurate assessment of cardiac function is obtained in less than 5 minutes.

摘要

采用屏气电影磁共振成像对10名健康志愿者的左心室(LV)容积和质量进行评估。将结果与传统电影磁共振成像获得的结果进行比较。屏气研究未显示鬼影伪影,且由于模糊减少,心脏边缘清晰可辨。屏气电影磁共振成像测得的左心室舒张末期容积(LVEDV)、左心室收缩末期容积(LVESV)和左心室质量与传统电影磁共振成像测得的结果密切相关(r分别为0.98、0.97和0.99)。屏气电影磁共振成像测定的LVEDV、LVESV和左心室质量的观察者间变异性(分别为4.0%、8.0%和3.7%)等于或小于传统电影磁共振成像测定的变异性(分别为4.0%、8.6%和5.0%)。作者得出结论,屏气电影磁共振成像非常有用,因为在不到5分钟的时间内就能获得对心脏功能的准确评估。

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