采用时空滤波方法TSENSE的自由呼吸实时电影心脏磁共振成像进行心脏功能分析：与屏气电影心脏磁共振成像的比较
Cardiac functional analysis by free-breath real-time cine CMR with a spatiotemporal filtering method, TSENSE: comparison with breath-hold cine CMR.
作者信息
Yamamuro Masaki, Tadamura Eiji, Kanao Shotaro, Okayama Satoshi, Okamoto Jun, Urayama Shinichi, Kimura Takeshi, Komeda Masashi, Kita Toru, Togashi Kaori
机构信息
Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.
出版信息
J Cardiovasc Magn Reson. 2006;8(6):801-7. doi: 10.1080/10976640600777686.
The aim of this study was to assess the accuracy of cardiac functional values obtained from free-breathing real-time cine CMR with the temporal sensitivity encoding (TSENSE) technique by comparing them with values obtained from conventional cine CMR. For the real-time cine CMR, two protocols were employed, one with good temporal resolution and one with good spatial resolution. The functional values obtained from the high temporal resolution real-time cine CMR agreed and correlated well with those of cine CMR. On the other hand, statistically significant but clinically slight overestimation of ESV (p < .05) and underestimation of EF (p < .01) were observed with the other protocol. Real-time cine CMR with TSENSE can provide acceptable cardiac functional values.
本研究的目的是通过将自由呼吸实时电影心脏磁共振成像（CMR）采用时间敏感性编码（TSENSE）技术获得的心脏功能值与传统电影CMR获得的值进行比较，来评估其准确性。对于实时电影CMR，采用了两种方案，一种具有良好的时间分辨率，另一种具有良好的空间分辨率。从高时间分辨率实时电影CMR获得的功能值与电影CMR的功能值一致且相关性良好。另一方面，在另一种方案中观察到，射血末期容积（ESV）有统计学意义但临床上轻微的高估（p < 0.05）以及射血分数（EF）有低估（p < 0.01）。采用TSENSE的实时电影CMR能够提供可接受的心脏功能值。
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