Abstract：Objective To explore and analyze the CT features of abnormal drainage of the great cardiac vein to understand this variation. Methods A retrospective study of 28 cases of abnormal drainage of great cardiac vein who underwent cardiac CT examination in the radiology Department of Huadong Hospital Affiliated to Fudan University from May 2007 to August 2018 was performed. There were 12 males and 16 females, aged from 25 to 79 years. The CT scan images were multi-planar reconstructed. On the CT reconstructed images, the route of the great cardiac vein and the position of abnormal drainage were observed, and the length of the great cardiac vein, the diameter and CT value of the junction of abnormal drainage, and the diameter of the coronary sinus were measured. The presence of cardiac malformation was also observed. Results Among the 28 patients with abnormal drainage of the great cardiac vein, 19 were drained into the superior vena cava, 7 into the left atrium, and 2 into the right atrium. In the 19 patients with great cardiac vein drained into the superior vena cava, the length of the great cardiac vein was 17-26 mm, the distance between the great cardiac vein and the entrance to the left atrium of the superior vena cava was 1-8 mm, and the diameter of the entrance of the great cardiac vein drainage into the superior vena cava was 2.5-4 mm. The CT value of the entrance was 20-60 HU, and the diameter of the coronary sinus was 2.5-5 mm. Complicated cardiac malformation, including interventricular septal defect, was detected in 1 case. In 9 patients, the great cardiac vein was drained into the anterior wall of the left atrium in 6 cases, the top of the right atrium near the atrial septum in 2 cases, and the left wall of the left atrium in 1 case. The length of the great cardiac vein was 15-36 mm, and the diameter of the entrance of the great cardiac vein drainage into the atrium was 2.8-4.5 mm. The CT value of the entrance was 400-600 HU. The diameter of the coronary sinus was 2.5-5 mm. Complicated cardiac malformation was also detected, including unroofed coronary sinus in 2 cases, patent foramen ovale in 1 case, coronary artery fistula in 1 case, and double outlet of the right ventricle in 1 case. Conclusions Cardiac CT is an effective method to detect abnormal drainage of the great cardiac vein. The combination of various post-processing techniques can avoid missed diagnosis and misdiagnosis.
毛定飚, 齐琳, 陈武飞, 金秀, 杨艳丽, 陆芳, 高轶奕, 王迩诺, 孙英丽, 滑炎卿. 心大静脉异常引流28例CT特征分析[J]. 中华解剖与临床杂志, 2020, 25(6): 649-652.
Mao Dingbiao, Qi Lin, Chen Wufei, Jin Xiu, Yang Yanli, Lu Fang, Gao Yiyi, Wang Ernuo, Sun Yingli, Hua Yanqing. CT features of anomalous drainage of the great cardiac vein: analysis of 28 cases. Chinese Journal of Anatomy and Clinics, 2020, 25(6): 649-652.
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2020, Vol. 25 
