Kipper M S, Alazraki N
Radiology. 1982 Aug;144(3):581-6. doi: 10.1148/radiology.144.3.7100477.
The 99mTC Compton scatter contribution from the perfusion lung study to the subsequent 133Xe ventilation scan was quantitated in 15 consecutive patients undergoing both studies. Maximum contribution during the wash-in phase occurred during the first 10 seconds; thereafter, 99mTc Compton scatter averaged less than 10% of the total counts accumulated for a 133Xe image. The contribution during wash-out gradually increased to a maximum of 36% at 4 minutes in a normal subject. The authors conclude that a properly performed 133Xe ventilation study may immediately follow the 99mTc perfusion lung scan without significant image degradation.
对15例连续接受灌注肺研究及后续133Xe通气扫描的患者，定量分析了灌注肺研究中99mTc康普顿散射对后续133Xe通气扫描的影响。在吸入期，最大影响出现在最初10秒；此后，99mTc康普顿散射平均占133Xe图像累积总计数的比例不到10%。在正常受试者中，呼出期的影响逐渐增加，在4分钟时达到最大值36%。作者得出结论，正确进行的133Xe通气研究可在99mTc灌注肺扫描后立即进行，而不会导致明显的图像质量下降。
