Neumann D R, Go R T, Myers B A, MacIntyre W J, Chen E Q, Cook S A
Department of Nuclear Medicine, Cleveland Clinic Foundation, OH 44195-5074.
Eur J Nucl Med. 1993 Nov;20(11):1108-11. doi: 10.1007/BF00173492.
Complete assessment of biventricular function from planar ECG-gated cardiac blood pool studies has been limited because of the overlap of adjacent activity-containing structures. Theoretically, single-photon emission tomography (SPET) can be used to comprehensively evaluate both ventricles by isolating them from surrounding anatomy. However, an enormous amount of parametric data is generated from gated SPET studies, and much of it is diagnostically irrelevant for ventricular wall motion analysis. To compress this information to a more easily interpretable format, a two-dimensional parametric display has been developed. Fourier analysis of short-axis tomograms from a gated cardiac blood pool SPET study generates three-dimensional, first-harmonic phase data. Circumferential profile data from the parametric tomograms of the right and left ventricle are mapped onto a two-dimensional polar display. This method is demonstrated in a normal patient and in three patients with abnormal ventricular contraction patterns and appears to have potential application for the analysis and characterization of biventricular wall motion.
由于相邻含活性结构的重叠，平面心电图门控心血池研究对双心室功能的全面评估受到限制。从理论上讲，单光子发射断层扫描（SPET）可通过将心室与周围解剖结构隔离开来，用于全面评估两个心室。然而，门控SPET研究产生了大量的参数数据，其中许多数据对于心室壁运动分析在诊断上并无关联。为了将这些信息压缩成更易于解释的形式，已开发出一种二维参数显示方法。对门控心血池SPET研究的短轴断层图像进行傅里叶分析，可生成三维一次谐波相位数据。右心室和左心室参数断层图像的圆周轮廓数据被映射到二维极坐标显示上。该方法在一名正常患者和三名心室收缩模式异常的患者中得到了验证，似乎在双心室壁运动的分析和特征描述方面具有潜在应用价值。
