EVALUATION OF LEFT-VENTRICULAR INFLOW AND VOLUME BY MR
EVALUATION OF LEFT-VENTRICULAR INFLOW AND VOLUME BY MR
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DOI：
10.1016/0730-725x(93)90215-y
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发表时间：
1993-01-01
影响因子：
2.5
通讯作者：
BACHMANN, K
中科院分区：
文献类型：
--
作者：
ENGELS, G;MULLER, E;BACHMANN, K
在过去几年中，通过 MR 评估心内血流已取得了相当大的进展。与超声多普勒类似，现在可以将左心室舒张充盈参数记录为 E/A 比、A 波与 E 波的速度时间积分（A（面积）/E（面积））或等容舒张时间指数。 共检查24例患者（女性7例，男性17例，年龄24-69岁），其中高血压性心脏病5例，冠心病5例，不同程度二尖瓣狭窄7例； 7 例显示正常结果。 E/A 比、A（面积）/E（面积）以及等容舒张时间 (IVRT) 由两名不同检查者在同一天通过 MR 和超声多普勒进行评估，比较两种技术时显示，E/A 比的相关系数为 0.89，A（面积）/E（面积）为 0.67，IVRT 为 0.76。此外，为了测试通过 MR 进行左心室功能诊断的潜力，通过计算机辅助 3D 成像技术详细阐述了正常病例和肥厚性扩张型心肌病患者的时间-体积曲线。该技术与心导管插入术或放射性核素心室造影的结果具有良好的一致性。
Considerable progress has been achieved during the past few years in the evaluation of intracardial blood flow by MR. Similar to ultrasound Doppler, it is possible now to registrate parameters of left ventricular diastolic filling as E/A ratio, velocity time integral of A- to E-wave (A(area)/E(area)), or isovolumetric relaxation time index. A total of 24 patients (7 women, 17 men, aged 24-69 yr) were examined, 5 of whom suffered from a hypertensive heart disease, 5 from a coronary heart disease, and 7 from mitral valve stenosis of various degree; 7 showed normal findings. E/A-ratio, A(area)/E(area), as well as isovolumetric relaxation time (IVRT) were evaluated by two different examiners on the same day by MR and ultrasound-Doppler, showing correlation factors of .89 for E/A ratio, .67 for A(area)/E(area), and .76 for IVRT in comparing both techniques. Additionally, to test the potential for making left ventricular function diagnoses from MR, time-volume curves for normal cases and patients with hypertrophic and dilated cardiomyopathy were elaborated by a computer-assisted 3D imaging technique. This technique showed good concordance with the results from cardiac catheterization or radionuclide ventriculography.