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Postoperative evaluation of ascending aortic prosthetic conduits by magnetic resonance imaging. FREE TO VIEW

A L Pucillo; A G Schechter; R A Moggio; R H Kay; M S Tenner; M V Herman
Chest. 1990;97(1):106-110. doi:10.1378/chest.97.1.106
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Abstract

Operative repair of ascending thoracic aortic dissection and aneurysm often involves the placement of prosthetic aortic conduits and stents with wrapping of the native aorta around the prosthetic device. Postoperative assessment has been clinical because of the absence of an adequate noninvasive imaging modality and a reluctance to perform invasive contrast aortography. Magnetic resonance imaging was performed on ten patients after operative placement of a prosthetic ascending aortic graft. The MR images were reviewed and a grading system was devised based on appearance of the operative site. An increase in MR signal was noted in some patients between the graft and wrapped native vessel. In 20 percent of patients vascular lumen compromise was noted. Magnetic resonance imaging offers a noninvasive technique to assess postoperative complications and offers a viable alternative to invasive contrast aortography.


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