Histogram demonstrating image quality scores for the clinical native
T2prep-bSSFP versus bright-blood MTC-BOOST imaging. Summary of the image
quality scores with regard to sharpness of vessel or cardiac wall
borders and robustness to artifact (120 clinical examinations averaged
across four reviewers and 120 research examinations averaged across four
reviewers). Vessel sharpness and artifact scoring color correspondence
is provided next to the respective color bar. The x-axis reflects
percentage of examinations. A maximal image quality score of 5 for
vessel sharpness indicates sharp delineation of all relevant anatomic
structures with excellent contrast, whereas a robustness-to-artifact
score of 5 reflects no ghosting, signal voids, or cardiac motion
blurring (Appendix S3). AA = ascending aorta,
IVC = inferior vena cava, LA = left atrium, LLPV = left lower pulmonary
vein, LMCA = left main coronary artery, LUPV = left upper pulmonary
vein, LV = left ventricle, MPA = main pulmonary artery, MTC-BOOST =
Magnetization Transfer Contrast Bright-and-black blOOd phase SensiTive,
RA = right atrium, RCA = right coronary artery, RUPV = right upper
pulmonary vein, RV = right ventricle, SVC = superior vena cava,
T2prep-bSSFP = T2-prepared balanced steady-state free precession.