van Aswegen A, Otto A C, Herbst C P, Marx J D, Kleynhans P H, Lötter M G, Minnaar P C
S Afr Med J. 1986 Nov 8;70(10):598-600.
Regular evaluation of left ventricular (LV) function is important in assessing patients in an intensive coronary care unit (ICCU). An adapted first-transit (FT) technique was applied to 21 patients for calculation of LV ejection fraction (LVEF). In this method the radionuclide is administered directly into the right pulmonary artery through a Swan-Ganz catheter. High-quality LV images are obtained because of minimal activity in the right ventricle and left lung. Data were acquired on a distantly located on-line computer system to restrict equipment in the ICCU. LVEF from FT compared well with LVEF from gated blood pool studies (r = 0.91) but gave consistently lower values. The adapted FT method ensures improved counting statistics during LVEF determination and facilitates evaluation of LV wall motion in the ICCU patient.
在评估冠心病重症监护病房（ICCU）的患者时，定期评估左心室（LV）功能很重要。一种改良的首次通过（FT）技术应用于21例患者以计算左心室射血分数（LVEF）。在该方法中，放射性核素通过 Swan-Ganz 导管直接注入右肺动脉。由于右心室和左肺的活性最小，因此可获得高质量的左心室图像。数据在远程在线计算机系统上采集，以限制 ICCU 中的设备。FT 法测得的 LVEF 与门控血池研究测得的 LVEF 相关性良好（r = 0.91），但值始终较低。改良的 FT 方法可确保在 LVEF 测定期间改善计数统计，并有助于评估 ICCU 患者的左心室壁运动。
