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[Visualization of aorto-coronary bypass grafts with the aid of non-dynamic computer tomography].

Authors :
Daniel W
Döhring W
Elgeti H
Lichtlen PR
Stender HS
Borst HG
Source :
Schweizerische medizinische Wochenschrift [Schweiz Med Wochenschr] 1980 Nov 08; Vol. 110 (45), pp. 1654-7.
Publication Year :
1980

Abstract

To evaluate computer tomography (CT) for assessment of aorto-coronary bypass graft patency, 45 patients with 85 grafts were studied by non-dynamic CT before and after intravenous bolus injection of 50 ml contrast material. 28 patients had undergone postoperative coronary angiography (37 grafts patent, 11 occluded), while 17 (37 grafts) were studied in the early postoperative period without angiographic confirmation. 60 of 74 grafts (81.1%) which were angiographically patent or not checked by postoperative angiography could be visualized by CT. In patients in whom graft patency was documented by angiography, 32 of 37 grafts (86.5%) were identified correctly, including all 18 grafts (100%) to the left anterior descending branch (LAD). With the exception of one LAD graft which was judged differently by the two evaluators, none of the 11 definitely occluded grafts could be visualized by CT. The results suggest that non-dynamic CT allows correct identification of patent aorto-coronary bypass grafts in a high percentage of cases. So far, however, the method does not allow any deduction as to the functional status of the grafts.

Details

Language :
German
ISSN :
0036-7672
Volume :
110
Issue :
45
Database :
MEDLINE
Journal :
Schweizerische medizinische Wochenschrift
Publication Type :
Academic Journal
Accession number :
6974394