Figure 8. Serial fluoroscopic images of contrast injection
(subclavian approach: A, femoral approach: D), contrast retention
(subclavian approach: B, femoral approach: E), and contrast aspiration
(subclavian approach: C, femoral approach: F) from coronary sinus with a
balloon-tipped catheter, reported by Diab et al.
(93).(with permission from the journal of circulation: cardiovascular
intervention)