RT Journal Article SR Electronic T1 Imaging the thoracic aorta. JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 87 OP 88 DO 10.1136/hrt.77.1.87 VO 77 IS 1 A1 A. P. Banning YR 1997 UL http://heart.bmj.com/content/77/1/87.abstract AB