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DOI:10.2214/AJR.06.0709
AJR 2007; 188:W431-W439
© American Roentgen Ray Society

Pictorial Essay

MDCT Evaluation After Closure of Atrial Septal Defect with an Amplatzer Septal Occluder

Tain Lee1,2,3, I-Chen Tsai1,2,3,4, Yun-Ching Fu3,4,5, Sheng-Lin Jan5, Chung-Chi Wang6, Yen Chang6 and Min-Chi Chen1

1 Department of Radiology, Taichung Veterans General Hospital, Taichung Harbor Rd., Taichung 407, Taiwan, Republic of China.
2 Faculty of Medicine, Medical College of Chung Shan Medical University, Taiwan, Republic of China.
3 Department of Medicine, National Yang Ming University, Taiwan, Republic of China.
4 Institute of Clinical Medicine, National Yang Ming University, Taiwan, Republic of China.
5 Section of Pediatric Cardiology, Department of Pediatrics, Taichung Veterans General Hospital, Taiwan, Republic of China.
6 Section of Cardiovascular Surgery, Department of Surgery, Taichung Veterans General Hospital, Taiwan, Republic of China.

OBJECTIVE. The essay describes the protocol for and interpretation of MDCT scans in the evaluation of patients after insertion of an Amplatzer septal occluder.

CONCLUSION. In anatomic regions that cannot be confidently evaluated with transthoracic echocardiography, MDCT is useful for evaluating Amplatzer septal occluders for protrusion, migration, and residual shunt. Radiologists should be familiar with the imaging protocol and interpretation.

Keywords: cardiac imaging • cardiovascular disease • congenital malformations • CT


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