准确确定核素心室显像角度的方法及临床意义

The methods and clinical significance of accurately determining the angle of radionuclide ventriculography

目的:探讨常规目测方法与断层采集方法确定平衡法核素心室显像左、右心室分开的角度差异及对左室功能参数的影响。方法:选择进行平衡法门控心室显像的患者35例,分别以常规目测和断层采集方法确定左右心室分开的角度,并进行两次显像,对两种方法的角度以及处理所得左室主要功能参数(左室射血分数、高峰射血率、高峰充盈率)进行对比分析。结果:以断层采集确定的角度为标准,与常规角度对比平均的角度差为8°,最大的偏差值达17°,由此所得的左室功能参数组间差异均有统计学意义。结论:左、右心室角度分隔是否准确对左室功能参数测量具有明显的影响,断层方法确定角度简便、实用、客观、准确,值得在临床推广。

Objective：To investigate the angle differences between left and right ventricles and its effects on functional parameters of the left ventricular in radionuclide ventriculography by using both conventional method and tomograpbic method. Methods： Thirty-five patients who underwent radionuclide ventriculography were treated by both conventional method and tomographic method respectively. The angle and the ventricular functional parameters （LVEF,PER,PFR） ob- tained by the two methods were analyzed statistically. Results： It was statistically significant differences in left ventricular function parameters between the two groups at the average angle difference of 8 degrees with a maximum deviation value of 17 degrees. Conclusion：It has a significant effect on functional parameters of left ventricle by accurately separating angle of the left and right ventricle. It is a simple,practical, objective and accurate method to determine the angle by tomography, and can be applied in clinical work.