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MR findings of a rare defect, coronary sinus ASD

  • Abhishek Chaturvedi
  • Theodore J. Dubinsky
  • Jeffrey H. Maki
Case-In-Point

Abstract

The coronary sinus drains the cardiac veins into the right atrium. An unroofed coronary sinus is the least common type of atrial septal defect (<1%). An unroofed coronary sinus also communicates with the left atrium, in addition to its normal communication with the right atrium. This defect is difficult to diagnose. MR provides accurate anatomic details about the location and size of defect. Phase contrast velocity-encoded MR also helps towards quantifying the shunt volume. This case represents classical findings of this rare defect. Our patient first presented in the 8th decade with features of right heart failure.

Keywords

Atrial septal defect Cardiac MRI Coronary sinus 

References

  1. 1.
    Ootaki Y, Yamaguchi M, Yoshimura N, Oka S, Yoshida M, Hasegawa T (2003) Unroofed coronary sinus syndrome: diagnosis, classification, and surgical treatment. J Thorac Cardiovasc Surg 126(5):1655–1656. doi: 10.1016/S0022522303010195 PubMedCrossRefGoogle Scholar
  2. 2.
    Hahm JK, Park YW, Lee JK, Choi JY, Sul JH, Lee SK, Cho BK, Choe KO (2000) Magnetic resonance imaging of unroofed coronary sinus: three cases. Pediatr Cardiol 21(4):382–387. doi: 10.1007/s002460010087 PubMedCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, B.V. 2010

Authors and Affiliations

  • Abhishek Chaturvedi
    • 1
  • Theodore J. Dubinsky
    • 1
  • Jeffrey H. Maki
    • 1
  1. 1.Department of RadiologyUniversity of WashingtonSeattleUSA

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