Stein M G, Waxman A D, Ramanna L, Julien P, Chappel M
AJR Am J Roentgenol. 1985 Sep;145(3):511-5. doi: 10.2214/ajr.145.3.511.
Xenon-133 postperfusion lung scintigraphy using 10% windows was compared with standard posterior preperfusion 133Xe ventilation scanning in 33 patients. The postperfusion 133Xe study identified all major defects and washout abnormalities. In five patients, the assessment of match or mismatch of defects was improved because of optimal positioning of the postperfusion ventilation study. Computer subtraction of background technetium-99m macroaggregated albumin activity improved detection of mild washout abnormalities in eight patients but did not change the diagnostic category in any case. Postperfusion ventilation scanning using 10% windows (with or without background computer subtraction) is an alternative to preperfusion ventilation scanning for major V/Q abnormalities.
在33例患者中，对使用10%窗宽的灌注后氙-133肺闪烁显像与标准的灌注前133Xe后位通气扫描进行了比较。灌注后133Xe研究识别出了所有主要缺损和洗脱异常。在5例患者中，由于灌注后通气研究的最佳定位，缺损匹配或不匹配的评估得到了改善。计算机减去背景锝-99m大颗粒聚合白蛋白活性提高了8例患者轻度洗脱异常的检测率，但在任何情况下都未改变诊断类别。使用10%窗宽（有或无背景计算机减法）的灌注后通气扫描是灌注前通气扫描用于主要通气/灌注异常的一种替代方法。
