Rapid and Accurate Left Ventricular Chamber Quantification Using a Novel CMR Segmentation Algorithm: A Clinical Validation Study
Rapid and Accurate Left Ventricular Chamber Quantification Using a Novel CMR Segmentation Algorithm: A Clinical Validation Study
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DOI：
10.1002/jmri.22080
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发表时间：
2010-04-01
影响因子：
4.4
通讯作者：
Weinsaft, Jonathan W.
中科院分区：
文献类型：
--
作者：
Codella, Noel C. F.;Cham, Matthew D.;Weinsaft, Jonathan W.
目的：评估一种不涉及几何假设的新型自动左心室 (LV) 分割算法 (LV-METRIC) 的临床表现。材料和方法：独立使用 LV-METRIC 和手动追踪 (MT) 来量化 151 名接受电影 CMR（稳态自由进动）的连续患者的 LV 体积和 LVEF（射血分数）。使用相差成像独立测量每搏输出量。结果：LV-METRIC 在所有病例中均成功。平均 LVEF 与 MT 相差 1 点以内（Delta 0.6 +/- 2.3%。P < 0.05），患有晚期收缩功能障碍 (LVEF) 的患者 (0.5 +/- 2.5%) 与不患有晚期收缩功能障碍 (LVEF) 的患者 (0.9 +/- 2.3%；P = 0.01) 之间的差异较小
Purpose: To evaluate the clinical performance of a novel automated left ventricle (LV) segmentation algorithm (LV-METRIC) that involves no geometric assumptions.Materials and Methods: LV-METRIC and manual tracing (MT) were used independently to quantify LV volumes and LVEF (ejection fraction) for 151 consecutive patients who underwent cine-CMR (steady-state free precession). Phase contrast imaging was used to independently measure stroke volume.Results: LV-METRIC was successful in all cases. Mean LVEF was within 1 point of MT (Delta 0.6 +/- 2.3%. P < 0.05), with smaller differences among patients with (0.5 +/- 2.5%) versus those without (0.9 +/- 2.3%; P = 0.01) advanced systolic dysfunction (LVEF