Intra- and interstudy reproducibility of coronary artery diameter measurements in magnetic resonance coronary angiography

Journal of Magnetic Resonance Imaging : JMRI
J KeeganD N Firmin

Abstract

To determine the intra- and interstudy reproducibility of right coronary artery diameter assessment using serial magnetic resonance (MR) coronary angiography. Two-dimensional (2D) navigator-gated segmented fast low angle shot (FLASH) images of the proximal right coronary artery were acquired three times in 11 healthy volunteers, the first two times in the same study session and the third time after repositioning the subject in the scanner. Coronary artery diameters were determined using automated segmentation software and intra- and interstudy reproducibility calculated as the standard deviation (SD) of the signed differences between measurements within and between study sessions, respectively. The reproducibility of the segmentation software was determined by repeated analysis of each individual scan. One subject was excluded from the study due to poor-quality images. In the remaining 10 subjects, the mean (+/- SD) intrastudy difference in coronary artery diameters was -0.05 +/- 0.12 mm, a value that is very similar to between-frame (same-film) differences reported in quantitative coronary angiography (QCA). The mean (+/- SD) interstudy difference in coronary artery diameters was 0.16 +/- 0.43 mm, although this was greatly ske...Continue Reading

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Citations

Jan 16, 2013·Journal of Digital Imaging·Dwarikanath Mahapatra
May 5, 2007·Cardiology Clinics·Warren J ManningSusan B Yeon
Dec 14, 2011·Pharmaceutical Statistics·Martin JenkinsUNKNOWN PSI Biomarker Special Interest Group
Oct 29, 2008·IEEE Transactions on Medical Imaging·Anja HennemuthHeinz-Otto Peitgen
Nov 3, 2007·Magnetic Resonance Imaging Clinics of North America·Warren J ManningSusan B Yeon
Jan 5, 2005·Journal of the American College of Cardiology·Masahiro TerashimaMichael V McConnell
Jun 8, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Haikun QiClaudia Prieto

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