McEvoy F J, Forster-van Hijfte M A, White R N
Department of Small Animal Medicine and Surgery, Royal Veterinary College, University of London, Hatfield, United Kingdom.
Vet Radiol Ultrasound. 1998 May-Jun;39(3):234-7. doi: 10.1111/j.1740-8261.1998.tb00346.x.
This study reports data obtained from per-rectal 99mTc-pertechnetate portal scintigraphy in normal cats. It examines the effects of chemical restraint and the methods employed in defining regions of interest (ROIs) on the shunt index derived from this data. Six normal cats were used for the study; all six were chemically restrained for imaging using propofol and later four of them were manually restrained for comparison. Portal blood flow was studied and the mean shunt index was found to be 5.9% +/- 3.9 when ROIs were operator defined and 9.2% +/- 4.4 when ROIs were defined using an isocontour program. In cats that were restrained using propofol and operator defined ROIs, the mean value for the time between detection of radioactivity in the liver and in the heart was 14 +/- 1 seconds.
本研究报告了从正常猫的直肠 99mTc-高锝酸盐门静脉闪烁显像获得的数据。它研究了化学制动以及用于定义感兴趣区域（ROI）的方法对从该数据得出的分流指数的影响。该研究使用了六只正常猫；所有六只猫均使用丙泊酚进行化学制动以进行成像，随后其中四只进行手动制动以作比较。研究了门静脉血流，当 ROI 由操作员定义时，平均分流指数为 5.9%±3.9%，当使用等轮廓程序定义 ROI 时，平均分流指数为 9.2%±4.4%。在使用丙泊酚制动且由操作员定义 ROI 的猫中，肝脏和心脏检测到放射性之间的平均时间值为 14±1 秒。
