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首页> 外文期刊>European radiology >Accurate estimation of global and regional cardiac function by retrospectively gated multidetector row computed tomography: comparison with cine magnetic resonance imaging.
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Accurate estimation of global and regional cardiac function by retrospectively gated multidetector row computed tomography: comparison with cine magnetic resonance imaging.

机译：通过回顾性门控多探测器行计算机断层扫描准确估计全球和区域心脏功能：与电影磁共振成像的比较。

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摘要

Retrospective reconstruction of ECG-gated images at different parts of the cardiac cycle allows the assessment of cardiac function by multi-detector row CT (MDCT) at the time of non-invasive coronary imaging. We compared the accuracy of such measurements by MDCT to cine magnetic resonance (MR). Forty patients underwent the assessment of global and regional cardiac function by 16-slice MDCT and cine MR. Left ventricular (LV) end-diastolic and end-systolic volumes estimated by MDCT (134+/-51 and 67+/-56 ml) were similar to those by MR (137+/-57 and 70+/-60 ml, respectively; both P=NS) and strongly correlated (r=0.92 and r=0.95, respectively; both P<0.001). Consequently, LV ejection fractions by MDCT and MR were also similar (55+/-21 vs. 56+/-21%; P=NS) and highly correlated (r=0.95; P<0.001). Regional end-diastolic and end-systolic wall thicknesses by MDCT were highly correlated (r=0.84 and r=0.92, respectively; both P<0.001), but significantly lower than by MR (8.3+/-1.8 vs. 8.8+/-1.9 mm and 12.7+/-3.4 vs. 13.3+/-3.5 mm, respectively; both P<0.001). Values of regional wall thickening by MDCT and MR were similar (54+/-30 vs. 51+/-31%; P=NS) and also correlated well (r=0.91; P<0.001). Retrospectively gated MDCT can accurately estimate LV volumes, EF and regional LV wall thickening compared to cine MR.
机译：对心动周期不同部分的心电门控图像进行回顾性重建，可以在无创冠状动脉成像时通过多排CT（MDCT）评估心功能。我们比较了MDCT与电影磁共振（MR）进行此类测量的准确性。 40例患者通过16层MDCT和电影MR评估了整体和局部心脏功能。 MDCT（134 +/- 51和67 +/- 56 ml）估计的左心室舒张末期和收缩末期容积与MR（137 +/- 57和70 +/- 60 ml）相似，分别为P = NS）和高度相关（分别为r = 0.92和r = 0.95; P <0.001）。因此，MDCT和MR的左室射血分数也相似（55 +/- 21对56 +/- 21％; P = NS）并且高度相关（r = 0.95; P <0.001）。 MDCT的区域舒张末期和收缩末期壁厚高度相关（分别为r = 0.84和r = 0.92;两者均P <0.001），但显着低于MR（8.3 +/- 1.8与8.8 +/-）分别为1.9毫米和12.7 +/- 3.4对13.3 +/- 3.5毫米;均P <0.001）。 MDCT和MR得出的区域壁增厚值相似（54 +/- 30对51 +/- 31％; P = NS），并且相关性也很好（r = 0.91; P <0.001）。与电影MR相比，回顾性门控MDCT可以准确估计左室容积，EF和局部左室壁增厚。

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