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. 2020 Dec 10;2(6):e200414. doi: 10.1148/ryct.2020200414

Figure 2c:

Images in a 58-year-old man with biatrial drainage of the right superior vena cava (SVC), bilateral SVCs (left SVC draining to a dilated coronary sinus), small bridging innominate vein, and pulmonary artery hypertension. (a, b) Electrocardiographically gated steady-state free precession cine MR images in axial plane show right SVC (white arrowhead) and left SVC (black arrowhead). (a) The right upper and middle pulmonary veins (arrow) course posterior to the right SVC connecting normally to the left atrium (LA). The defect between the right SVC and right pulmonary veins is shown between the thick arrowhead and arrow. (b) Axial image which is more caudal to the defect and shows the inferior right SVC (white arrowhead) coursing to the right atrium and the right lower pulmonary vein (arrow) connecting to the LA. (c) Oblique coronal reformat and (d) volume-rendered reconstruction from gadolinium-enhanced MR angiography show right and left SVCs (black arrowhead), as well as the right upper and middle pulmonary veins (arrows) joining the right SVC through the defect. The pulmonary veins connect normally to the LA. The right SVC inferior to the defect (white arrowhead) is normal size and connects to the right atrium.

Images in a 58-year-old man with biatrial drainage of the right superior vena cava (SVC), bilateral SVCs (left SVC draining to a dilated coronary sinus), small bridging innominate vein, and pulmonary artery hypertension. (a, b) Electrocardiographically gated steady-state free precession cine MR images in axial plane show right SVC (white arrowhead) and left SVC (black arrowhead). (a) The right upper and middle pulmonary veins (arrow) course posterior to the right SVC connecting normally to the left atrium (LA). The defect between the right SVC and right pulmonary veins is shown between the thick arrowhead and arrow. (b) Axial image which is more caudal to the defect and shows the inferior right SVC (white arrowhead) coursing to the right atrium and the right lower pulmonary vein (arrow) connecting to the LA. (c) Oblique coronal reformat and (d) volume-rendered reconstruction from gadolinium-enhanced MR angiography show right and left SVCs (black arrowhead), as well as the right upper and middle pulmonary veins (arrows) joining the right SVC through the defect. The pulmonary veins connect normally to the LA. The right SVC inferior to the defect (white arrowhead) is normal size and connects to the right atrium.