LVG

Objective To evaluate accuracy of cardiac magnetic resonance imaging ( MRI) for assessing the left ventricular function compared with X-ray left ventriculography ( LVG).

目的评价心脏磁共振显像（MRI）和X线左室造影（LVG）检测左室（LV）功能的应用价值。

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RESULTS: The technical success rate of the group was 100%. LVG showed that 14 patients had complete closure, 6 had a trace to small shunt immediately after the procedures.

结果：全组技术成功率100%，术后左心室造影显示，6例存在微量～少量残余分流，14例封堵完全无残余分流。

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Heat transfer can be improved by longitudinal vortex ( LV) generated by longitudinal vortex generators ( LVG) in narrow rectangular channel.

利用纵向涡发生器在窄间隙矩形通道内产生的纵向涡可以起到强化传热的作用。

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Conclusion MSCT has clinically acceptable agreement with LVG for the quantification of global left ventricular function.

结论MSCT与LVG在评价左心室整体功能方面的一致性可被临床接受。

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Results There was good correlation between LVG and AMM for calculating left ventricular systolic function, but the value of left ventricular systolic function measured by routine M mode was highly estimated.

结果直线解剖M型所测左室整体收缩功能各指标与左室造影所测值有高度相关性，而传统M型所测各指标与左室造影比较则明显高估。

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Results The sensitivity, specificity, and diagnosis rate of ECG, UCG and LVG were 58.8%,( 83.5%), 40.0%;

结果心电图和超声心动图及左心室造影诊断室壁瘤的敏感性、特异性、诊断准确率分别为：58.8%，83.5%，40.0%；

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LVG showed that 365 ( 81.8%) patients had complete immediate closure, 81 ( 18.2%) had a trace to small shunt immediately after the procedures.

术后即刻左心室造影示81例（18.2%）存在微～少量残余分流，365例（81.8%）封堵完全无残余分流。

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