el-Desouki M, Joharjy I A, al-Muzrakchi A M, Bashi S A
Department of Nuclear Medicine, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia.
Clin Nucl Med. 1991 Mar;16(3):178-81. doi: 10.1097/00003072-199103000-00010.
Tc-99m labeled red blood cell scintigraphy is a valuable, noninvasive technique for differentiating hepatic hemangioma from other lesions by demonstrating a "perfusion blood pool mismatch." The characteristic finding on dynamic CT scan of peripheral and subsequent central enhancement is not usually seen on Tc-99m RBC angiography, probably due to rapid mixing and dilution of the radionuclide and low resolution of the gamma camera. A case of multiple hepatic hemangioma is presented in which Tc-99m RBC dynamic angiography demonstrated peripheral enhancement with subsequent central filling. In addition, delayed static images showed more hepatic lesions.
锝-99m标记红细胞闪烁扫描术是一种有价值的非侵入性技术，通过显示“灌注血池不匹配”来鉴别肝血管瘤与其他病变。动态CT扫描上外周及随后中央强化的特征性表现通常在锝-99m红细胞血管造影中未见，这可能是由于放射性核素的快速混合和稀释以及γ相机的低分辨率所致。本文报告一例多发性肝血管瘤病例，其中锝-99m红细胞动态血管造影显示外周强化并随后中央填充。此外，延迟静态图像显示出更多的肝脏病变。
