Jacobsson H, Larsson S A, Ohlsén H
Eur J Nucl Med. 1985;11(8):309-15. doi: 10.1007/BF00252343.
In our hospital, single-photon-emission computed tomography (SPECT) has been routinely used instead of conventional scintigraphy in the examination of the liver and spleen in more than 3,000 patients. This technique is preferred because it provides more detailed information and better contrast resolution than planar views. However, using the SPECT technique, normal variations in liver anatomy are more apparent, and certain cases--in particular those with a wide main lobar fissure combined with a prominent gall bladder fossa as well as cases with a large hilus--may erroneously be interpreted as having a focal lesion. In order to facilitate the interpretation of SPECT examinations of the liver, the most common difficulties and pitfalls arising from normal variations in hepatic anatomy, indentations caused by surrounding organs and partial-volume effects are described and compared with the findings of corresponding transmission computed tomograms.
在我院，单光子发射计算机断层扫描（SPECT）已常规用于肝脏和脾脏检查，取代了传统闪烁扫描法，检查患者超过3000例。该技术更受青睐，因为它比平面视图能提供更详细的信息和更好的对比度分辨率。然而，使用SPECT技术时，肝脏解剖结构的正常变异更为明显，某些病例——特别是那些主叶裂宽且胆囊窝突出的病例以及肝门大的病例——可能会被错误地解释为有局灶性病变。为便于解读肝脏的SPECT检查结果，本文描述了肝脏解剖结构正常变异、周围器官造成的压迹以及部分容积效应所引起的最常见困难和陷阱，并与相应的透射计算机断层扫描结果进行了比较。
