Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
Diagn Interv Radiol. 2013 Sep-Oct;19(5):405-10. doi: 10.5152/dir.2013.054.
Bone scintigraphy is a sensitive and popular method for imaging a wide array of benign or malignant skeletal abnormalities. However, the uptake of tracers used for bone scintigraphy may be observed in various extraosseous sites, thereby limiting its specificity. It is difficult to correctly localize such sites of uptake on planar bone scintigraphy alone. The addition of hybrid single-photon emission computed tomography-computed tomography (SPECT-CT) under such circumstances is very useful. The present essay illustrates the commonly encountered extraosseous uptake of 99mTc-methylene diphosphonate (MDP) and the usefulness of hybrid SPECT-CT in clarifying 99mTc-MDP uptake.
骨闪烁显像术是一种广泛用于成像各种良性或恶性骨骼异常的敏感且流行的方法。然而，用于骨闪烁显像术的示踪剂摄取可能在各种骨外部位观察到，从而限制了其特异性。仅通过平面骨闪烁显像术很难正确定位摄取部位。在这种情况下，添加混合单光子发射计算机断层扫描-计算机断层扫描（SPECT-CT）非常有用。本文举例说明了常见的 99mTc-亚甲基二膦酸盐（MDP）的骨外摄取，并说明了混合 SPECT-CT 在阐明 99mTc-MDP 摄取方面的作用。
