Semmler W, Felix R, Calder D, Golde G, Botsch H
Rofo. 1983 Oct;139(4):343-50. doi: 10.1055/s-2008-1055904.
Tomographic studies and time-dependent tomograms on phantoms and patients were carried out using a 7-pinhole collimator in order to study the clinical value of ECG-triggered tomographic radionuclid ventriculography. A suitable computer programme has been developed. The results have shown that it is possible to evaluate local contraction abnormalities by this method. Using a left oblique position of the collimator (LAO [45 degrees]-cranial [15 degrees] ), emission computer tomography is aligned with the longitudinal axis of the heart. In this way, a single projection is sufficient to show the motility of the anterior and posterior walls and of the septum. Hypokinesis, akinesis or dyskinesis can be recognised visually. The localisation and extent of the defect can be determined through the 7-pinhole collimator. Reconstructed images of the triggered radionuclid scintigrams show excellent marginal definition. In the RAO projection, the left ventricle can be seen without superimposition and images obtained which equal those of a first-pass technique.
为了研究心电图触发的断层放射性核素心室造影的临床价值，使用7针孔准直器对体模和患者进行了断层研究及随时间变化的断层扫描。已开发出合适的计算机程序。结果表明，通过这种方法可以评估局部收缩异常。使用准直器的左斜位（左前斜45度-头位15度），发射型计算机断层扫描与心脏的纵轴对齐。通过这种方式，单次投影就足以显示前壁、后壁和室间隔的运动。运动减弱、运动不能或运动障碍可以通过视觉识别。缺损的定位和范围可以通过7针孔准直器确定。触发的放射性核素闪烁图的重建图像显示出极佳的边缘清晰度。在右前斜位投影中，可以看到左心室而无重叠，所获得的图像与首次通过技术的图像相当。
