1.5T MRI、实时三维超声心动图对肺动脉高压患者心功能评估价值

目的分析1.5T MRI、实时三维超声心动图对肺动脉高压患者心功能评估价值。方法将我院50例肺动脉高压患者作为研究对象,均进行1.5T MRI、实时三维超声心动图检查,记录其右心功能指标[右心室舒张末期容积(RVEDV)、右心室收缩末期容积(RVESV)、右心室射血分数(RVEF)],分析1.5T MRI和实时三维超声心动图右心功能指标相关性。结果 1.5T MRI检测的RVEDV、RVESV均大于实时三维超声心动图(P<0.05),RVEF与实时三维超声心动图无显著差异(P>0.05)。1.5T MRI检测的RVEDV、RVESV、RVEF与实时三维超声心动图检测的RVEDV、RVESV、RVEF均呈正相关(r=0.903,r=0.881,r=0.769,均P<0.05)。结论 1.5T MRI和实时三维超声心动图均可用于肺动脉高压患者心功能评估,但两种方法所测RVEDV、RVESV存在一定差异,实时三维超声心动图测量右心室容积的精准性还有待提高。

Evaluated Value of 1.5T MRI and Real-Time Three-dimensional Echocardiography on Cardiac Function in Patients with Pulmonary Hypertension

Objective To analyze the evaluated value of 1.5T MRI and real-time three-dimensional echocardiography on cardiac function in patients with pulmonary hypertension. Methods 50 patients with pulmonary hypertension in our hospital were enrolled in the study. All patients were given 1.5T MRI and real-time three-dimensional echocardiography. The right ventricular function indexes [ right ventricular end-diastolic volume(RVEDV), right ventricular end-systolic volume(RVESV), right ventricular ejection fraction(RVEF)] were recorded, and the correlation among right ventricular function indexes of 1.5T MRI and real-time three-dimensional echocardiography was analyzed. Results The RVEDV and RVESV of 1.5T MRI were greater than those of real-time three-dimensional echocardiography(P<0.05), and there was no significant difference in the RVEF compared with that of real-time three-dimensional echocardiography(P>0.05). The RVEDV, RVESV and RVEF detected by 1.5T MRI were positively correlated with RVEDV, RVESV and RVEF detected by real-time threedimensional echocardiography(r=0.903, r=0.881, r=0.769, all P<0.05). Conclusion Both 1.5T MRI and real-time three-dimensional echocardiography can be used for cardiac function assessment in patients with pulmonary hypertension. However, there are some differences between RVEDV and RVESV measured by the two methods. The accuracy of real-time three-dimensional echocardiography to measure right ventricular volume needs to be improved.