[Quantitative computed tomographic flow measurements of aortocoronary venous bypass grafts. II. Correlation with angiographic measurements].
In 26 patients with 35 aortocoronary venous bypass grafts (ACVB) quantitative invasive angiographic parameters were compared with flow parameters of contrast medium, assessed by computed tomography. Out of seven different CT-parameters, the maximum decrease of concentration of contrast medium (40 +/- 5 HE/sec; mean +/- SEM) showed a correlation with the angiographic parameter of contrast medium quantitative flow rate (7.2 +/- 0.5 cm/sec) and this correlation (r = 0.536/SEE = 23.17) is significant (p less than 0.001). We conclude that for the single patient assessment of quantitative flow in ACVB by CT with a 3-second repetition rate could be performed with limited accuracy.
Mühlberger
V
V
Univ.-Klinik für Innere Medizin, Innsbruck.
Moes
N
N
zur Nedden
D
D
Knapp
E
E
D000792:Angiography / Q000379:methods; D001783:Blood Flow Velocity; D001026:Coronary Artery Bypass; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging*; D006801:Humans; D007472:Iohexol; D007485:Ioxaglic Acid; D011184:Postoperative Period; D013997:Time Factors; D014057:Tomography, X-Ray Computed / Q000379:methods
D007472:Iohexol; D007485:Ioxaglic Acid
Quantitative computertomographische Flussmessungen in aortokoronaren Venenbrücken. Teil II: Korrelation mit angiographischen Messungen.