Abnormal position of the heart within the thoracic cavity may potentially cause cardiac single-photon emission computed tomography (SPECT) perfusion artifacts, and only few such cases have been reported.

• 摘要胸腔内心脏位于不正常位置可能导致心脏单光子射出计算机断层造影伪像，且这种病例仅有少数曾被报告过。