科研之友
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摘要
The ContegraA (R) is a conduit made from the bovine jugular vein and then interposed between the right ventricle and the pulmonary artery. It is used for cardiac malformations in the reconstruction of right ventricular outflow tract. %26lt;br%26gt;To describe both normal and pathological appearances of the ContegraA (R) in radiological imaging, to describe imaging of complications and to define the role of CT and MRI in postoperative follow-up. %26lt;br%26gt;Forty-three examinations of 24 patients (17 boys and 7 girls; mean age: 10.8 years old) with ContegraA (R) conduits were reviewed. Anatomical description and measurements of the conduits were performed. Pathological items examined included stenosis, dilatation, plicature or twist, thrombus or vegetations, calcifications and valvular regurgitation. Findings were correlated to the echographic gradient through the conduit when available. %26lt;br%26gt;CT and MR work-up showed ContegraA (R) stenosis (n = 12), dilatation (n = 9) and plicature or twist (n = 7). CT displayed thrombus or vegetations in the ContegraA (R) in three clinically infected patients. Calcifications of the conduit were present at CT in 12 patients and valvular regurgitation in three patients. The comparison between CT and/or MR results showed a good correlation between the echographic gradient and the presence of stenosis in the ContegraA (R). %26lt;br%26gt;CT and MR bring additional information about permeability and postoperative anatomy especially when echocardiography is inconclusive. Both techniques depict the normal appearance of the conduit, and allow comparison and precise evaluation of changes in the postoperative follow-up.
- 出版日期2014-12
