A morphometric 3D model of coronary artery bypass graft dysfunction with multidetector computed tomography.
OBJECTIVE
The objective was to assess, with computed tomography (CT) angiography, quantitative morphological parameters of a composite coronary artery bypass grafting (CABG) strategy and to correlate these with graft dysfunction.


RESULTS
Forty patients [median postoperative time, 32 (14-51) months] underwent CT angiography. Graft patency was assessed, and specific quantitative morphological parameters of the graft were collected. Graft segments had an overall patency rate of 93% (78/84). Two specific morphological parameters were found to be associated with graft dysfunction.


CONCLUSIONS
A CT morphometric model can be used to identify quantitative 3D parameters associated with graft dysfunction. Such an approach could help in developing and improving CABG designs.
Department of Radiology, Centre Hospitalier de l'Université de Montréal (CHUM).
Jan-Alexis
JA
Tremblay
Division of Cardiac Surgery, Centre Hospitalier de l'Université de Montréal (CHUM); Centre de Recherche du CHUM (CRCHUM), Based in Hôtel-Dieu Hospital, 3840 St-Urbain Street, Montréal (Québec) Canada, H2W 1T8.
Louis-Mathieu
LM
Stevens
Department of Radiology, Centre Hospitalier de l'Université de Montréal (CHUM).
Martin
M
Chandonnet
Department of Radiology, Centre Hospitalier de l'Université de Montréal (CHUM); Centre de Recherche du CHUM (CRCHUM), Based in Hôtel-Dieu Hospital, 3840 St-Urbain Street, Montréal (Québec) Canada, H2W 1T8.
Gilles
G
Soulez
Division of Cardiac Surgery, Centre Hospitalier de l'Université de Montréal (CHUM).
Fadi
F
Basile
Division of Cardiac Surgery, Centre Hospitalier de l'Université de Montréal (CHUM).
Ignacio
I
Prieto
Division of Cardiac Surgery, Centre Hospitalier de l'Université de Montréal (CHUM); Centre de Recherche du CHUM (CRCHUM), Based in Hôtel-Dieu Hospital, 3840 St-Urbain Street, Montréal (Québec) Canada, H2W 1T8.
Nicolas
N
Noiseux
Department of Radiology, Centre Hospitalier de l'Université de Montréal (CHUM); Centre de Recherche du CHUM (CRCHUM), Based in Hôtel-Dieu Hospital, 3840 St-Urbain Street, Montréal (Québec) Canada, H2W 1T8. Electronic address: chartrandlef@videotron.ca.
Carl
C
Chartrand-Lefebvre
D000368:Aged; D017023:Coronary Angiography / Q000379:methods*; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D005260:Female; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D061330:Multidetector Computed Tomography / Q000379:methods*; D011184:Postoperative Period; D014654:Vascular Patency
Angiography; Biomechanics; Computed tomography angiography; Coronary artery bypass graft; Graft design