Department of General and Interventional Radiology and Neuroradiology, Wroclaw Medical University, Borowska 213, 50-556, Wrocław, Poland.
Department of Population Health, Division of Environmental Health and Occupational Medicine, Wroclaw Medical University, Mikulicza-Radeckiego 7, 50-368, Wrocław, Poland.
Sci Rep. 2022 May 19;12(1):8425. doi: 10.1038/s41598-022-12359-2.
The objective of the study was to optimize the method of measuring left ventricular end-diastolic diameter (LVEDD) in cardiac magnetic resonance (CMR) as a predictor of left ventricular end-diastolic volume (LVEDV). The study group consisted of 78 patients (age 55.28 ± 17.18) who underwent 1.5 T CMR examination. LVEDD measurements in the short axis, in the long axis in the 2-chamber, 3-chamber and 4-chamber views were made by 2 radiologists. The repeatability of LVEDD measurements was assessed. The sensitivity and specificity of various methods of measuring LVEDD as a predictor of left ventricular enlargement (diagnosed based on LVEDV) were assessed. The correlation coefficients between LVEDD measurements made by researcher A and B were 0.98 for the long axis measurements in the 2-chamber and 3-chamber view, and 0.99 for measurements made in the short axis and in the long axis in the 4-chamber view. The lowest LVEDD measurements variability was recorded for the short axis measurements (RD 0.02, CV 1.38%), and the highest for the long axis measurements in the 3-chamber view (RD 0.04, CV 2.53%). In the male subgroup, the highest accuracy in predicting left ventricular enlargement was characterized by the criterion "LVEDD measured in the long axis in the 2-chamber view > 68.0 mm" (accuracy 94.1%). In the female subgroup, the highest accuracy in predicting left ventricular enlargement was achieved by the criterion "LVEDD measured in the short axis > 63.5 mm" (96.3%). In summary, the measurement made in the short axis should be considered the optimal method to LVEDD measure in CMR, considering the repeatability of measurements and the accuracy of left ventricular enlargement prediction.
这项研究的目的是优化心脏磁共振（CMR）中测量左心室舒张末期直径（LVEDD）的方法，作为预测左心室舒张末期容积（LVEDV）的指标。研究组由 78 名患者（年龄 55.28±17.18 岁）组成，这些患者均接受了 1.5T 的 CMR 检查。两位放射科医生在短轴、2 腔、3 腔和 4 腔视图中测量 LVEDD。评估了 LVEDD 测量的重复性。评估了各种测量 LVEDD 的方法作为预测左心室扩大（根据 LVEDV 诊断）的敏感性和特异性。研究员 A 和 B 之间的 LVEDD 测量值的相关系数在 2 腔和 3 腔视图的长轴测量值为 0.98，在短轴和 4 腔视图的长轴测量值为 0.99。记录到最短轴测量值的 LVEDD 测量值变异性最低（RD 0.02，CV 1.38%），而在 3 腔视图的长轴测量值中变异性最高（RD 0.04，CV 2.53%）。在男性亚组中，预测左心室扩大的最高准确性的标准是“在 2 腔视图的长轴上测量的 LVEDD>68.0mm”（准确性 94.1%）。在女性亚组中，预测左心室扩大的最高准确性的标准是“在短轴上测量的 LVEDD>63.5mm”（96.3%）。总之，考虑到测量的重复性和预测左心室扩大的准确性，在 CMR 中应将短轴测量值视为测量 LVEDD 的最佳方法。
