University of Michigan Medical School, 1301 Catherine St. 7300 Medical Science Building I - A Wing, Ann Arbor, MI, 48109, USA.
Michigan Medicine, Cardiovascular Center Floor 5 Rm 5383 1500 E Medical Center Dr SPC 5868, Ann Arbor, MI, 48109, USA.
Int J Cardiovasc Imaging. 2024 May;40(5):1159-1160. doi: 10.1007/s10554-024-03108-9. Epub 2024 May 4.
Unroofed sinus is categorized into four subtypes. Types I and II represent complete unroofing with or without an LSVC, respectively [1]. Types III and IV are partial unroofing involving the mid-CS (type III) or near the LA appendage and left superior pulmonary vein (type IV) [1]. CT has advantages over echocardiography in detection of this anomaly (illustrated in this case) as well as in precise delineation of defect and associated findings (presence or absence of LSVC). Short axis reconstructions at the level of CS are helpful in diagnosis. Considerations for repair include location of CS defect, presence of LSVC and other abnormalities as well as comorbidity risks [2].
未顶盖窦可分为四型。I 型和 II 型分别代表完全未顶盖窦，伴有或不伴有左心耳静脉（LSVC）[1]。III 型和 IV 型为部分未顶盖窦，涉及中冠状窦（III 型）或靠近左心房附件和左上肺静脉（IV 型）[1]。CT 比超声心动图在检测这种异常方面具有优势（本病例中显示），并且在准确描绘缺陷和相关发现方面也具有优势（是否存在 LSVC）。冠状窦水平的短轴重建有助于诊断。修复的考虑因素包括冠状窦缺陷的位置、LSVC 和其他异常以及合并症风险[2]。
