Im J G, Rosen A, Webb W R, Gamsu G
Department of Radiology, University of California, San Francisco, School of Medicine 94143-0628.
AJR Am J Roentgenol. 1988 Jan;150(1):79-84. doi: 10.2214/ajr.150.1.79.
On MR images of the chest, a low-signal-intensity band is often seen between the ascending aorta and left atrium in the transverse plane, and between the right pulmonary artery and left atrium in the coronal and sagittal planes. CT and MR of cadavers, with injection of contrast media into the pericardial space, confirmed that this structure was the transverse sinus of the pericardium. Retrospective review of MR studies in 45 patients without evidence of pericardial disease showed the transverse sinus of the pericardium in 80% (32/40) of transverse ECG-gated images, 78% (7/9) of sagittal ECG-gated images, and 67% (14/21) of coronal ECG-gated images. Nongated studies showed the sinus infrequently. Knowledge of the three-dimensional anatomy of the transverse sinus of the pericardium and of its typical MR appearance should allow its recognition and preclude misinterpretation.
在胸部磁共振成像（MR）上，横断面上升主动脉与左心房之间、冠状面和矢状面上右肺动脉与左心房之间常可见到低信号强度带。对尸体进行CT和MR检查，并向心包腔注入造影剂，证实该结构为心包横窦。对45例无心包疾病证据的患者的MR研究进行回顾性分析发现，在心电门控横断图像中80%（32/40）可见心包横窦，在心电门控矢状图像中78%（7/9）可见，在心电门控冠状图像中67%（14/21）可见。非门控研究很少显示该窦。了解心包横窦的三维解剖结构及其典型的MR表现应有助于对其进行识别并避免误诊。
