title: Magnetic resonance imaging angiography in patency evaluation of bronchial artery revascularization grafts.
abstract: In this report we present our experience of non-invasive magnetic resonance imaging (MR) angiography and selective catheter angiography in assessing the patency of bronchial artery revascularization grafts after an en bloc double-lung and heart-lung transplantation. We studied 8 patients who had undergone pulmonary transplantation with direct bronchial artery revascularization. Catheter angiography was performed 10 days to 63 months postoperatively. MR angiography was performed within 24 h of the catheter procedure and the results were compared with the findings from catheter angiography. Catheter angiography showed the bronchial revascularization graft to be patent in 6 patients and occluded in 2. At MR angiography, the patency of bronchial artery revascularization grafts was reliably identified in 7 of the 8 patients. One patient had inadequate image quality because of void artefacts caused by haemostatic clips. It is concluded that MR angiography is a reliable method for assessing the patency of bronchial artery revascularization grafts.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Helsinki University Central Hospital, Finland. timo.hyytinen@huch.fi
authors.forename: T A
authors.initials: TA
authors.lastname: Hyytinen
authors.forename: P E
authors.initials: PE
authors.lastname: Keto
authors.forename: L J
authors.initials: LJ
authors.lastname: Heikkilä
authors.forename: K A
authors.initials: KA
authors.lastname: Verkkala
authors.forename: J T
authors.initials: JT
authors.lastname: Sipponen
authors.forename: S P
authors.initials: SP
authors.lastname: Mattila
authors.forename: P E
authors.initials: PE
authors.lastname: Hekali
mesh_terms: D000328:Adult; D001158:Arteries / Q000637:transplantation; D001981:Bronchial Arteries / Q000473:pathology* / Q000601:surgery*; D006328:Cardiac Catheterization / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006083:Graft Occlusion, Vascular / Q000175:diagnosis*; D006085:Graft Survival; D016041:Heart-Lung Transplantation / Q000379:methods; D006801:Humans; D016040:Lung Transplantation / Q000379:methods; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D012680:Sensitivity and Specificity; D014654:Vascular Patency / Q000502:physiology; D014656:Vascular Surgical Procedures / Q000379:methods; D014680:Veins / Q000637:transplantation