ABE RAVIN, F.A.C.P.; CHARLES M. NICE, F.A.C.P.
When during fluoroscopy a patient is slowly rotated into the left anterior oblique position, the left ventricle, which at first overlies the shadow of the vertebrae, gradually separates from the vertebral column. The angle through which an upright subject must be rotated in the left anterior oblique position in order to separate the left lower cardiac border (left ventricle) from the vertebral column is the angle of clearance of the left ventricle. Wilson1 first used this term and determined this angle by means of a rotating turntable. In 119 normal children ranging in age from five to 15 years, she
RAVIN A, NICE CM. THE ANGLE OF CLEARANCE OF THE LEFT VENTRICLE1. Ann Intern Med. ;36:1413–1422. doi: 10.7326/0003-4819-36-6-1413
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Published: Ann Intern Med. 1952;36(6):1413-1422.
Hospital Medicine, Pulmonary/Critical Care.
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