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Angiology
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Rapid Acquisition Computed Tomographic Assessment of Left Ventricular Regional Wall Motion Using a New Long Axis View

Robert M. MacMillan, M.D., F.A.C.A.

Deborah Heart and Lung Center, Trenton Road, Browns Mills, New Jersey

Michael R. Rees, M.B., F.R.C.R.

Deborah Heart and Lung Center, Trenton Road, Browns Mills, New Jersey

Vladir Maranhao, M.D., F.A.C.A.

Deborah Heart and Lung Center, Trenton Road, Browns Mills, New Jersey

Donald L. Clark, M.D.

Deborah Heart and Lung Center, Trenton Road, Browns Mills, New Jersey

A long axis view to demonstrate left ventricular regional wall motion was devised for the ultrafast CT scanner. The patients are positioned supine, head first, into the scanner. The scan table is slewed 20° counter-clockwise in the horizontal plane without tilt. A bolus of contrast is injected via a median antecu bital vein. Contiguous level R wave triggered cine studies are obtained during peak passage of contrast through the heart to image the entire left ventricular cavity. Fourteen patients had left ventricular wall motion compared by long axis CT and RAO 30° single plane ventriculography at catheterization. In all cases, regional wall motion in comparable segments by both methods was in agree ment. It is concluded that the ultrafast CT long axis view permits diagnosis of left ventricular regional wall motion abnormalities. This view images the apex and sections the interventricular septum and lateral free wall horizontally. Un like conventional CT views, it is comparable to the RAO left ventriculogram.

Angiology, Vol. 37, No. 5, 372-377 (1986)
DOI: 10.1177/000331978603700506
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Home page
 ANGIOLOGYHome page
R. M. MacMillan and M. R. Rees
Determinants of Left Ventricular Ejection Fraction by Ultrafast Computed Tomography
Angiology, March 1, 1988; 39(3): 203 - 210.
[Abstract] [PDF]


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