BJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
British Journal of Radiology (1996) 69, 221-225
© 1996 British Institute of Radiology
doi:
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Forbat, S. M.
Right arrow Articles by Underwood, S. R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Forbat, S. M.
Right arrow Articles by Underwood, S. R.

The British Journal of Radiology, Vol 69, Issue 819 221-225, Copyright © 1996 by British Institute of Radiology

ARTICLES

Rapid assessment of left ventricular volume by short axis cine MRI

SM Forbat, MA Sakrana, KH Darasz, F El-Demerdash and SR Underwood
Royal Brompton Hospital, London, UK.

MRI is an established and accurate method of measuring left and right ventricular volumes by summing chamber areas in multiple contiguous slices. Acquisition time may be up to 45 min. We have estimated volumes with gradient echo imaging to test the accuracy of a more rapid method (total acquisition time 15 min) using a recognized echocardiographic algorithm. The results were compared with the spin echo method. We studied 20 patients (mean age 52 years, 15 male) within 6 months of anterior myocardial infarction and 20 normal subjects (mean age 40 years, 19 males). For the rapid method, cine acquisitions were made in the horizontal long axis plane and in two short axis planes which divided the long axis into three equal parts. Volume was calculated assuming the ventricle to be composed of a cylinder, a truncated cone and a cone. There was good agreement between the two methods at end diastole with a mean difference (+/- standard error, +/- 95% confidence interval for limits of agreement) of -3 ml (+/- 8.3, +/- 37%) for normal subjects and 1.5 ml (+/- 4.2, +/- 25%) for patients. Agreement was less good at end systole with mean difference of 12.1 (+/- 3.5, +/- 41%) for normal subjects and 25.7 (+/- 3.7, +/- 47%) for patients. The rapid method, therefore, significantly underestimated end systolic volume compared with the previous method. Rapid measurements of end diastolic volume are more accurate than those of end systolic volume and hence ejection fraction. Provided the potential error is recognized, the rapid technique can be used in routine clinical practice in both normal and abnormal ventricles.


This article has been cited by other articles:


Home page
 RadiologyHome page
C. D. L. Bavelaar-Croon, H. W. M. Kayser, E. E. van der Wall, A. de Roos, P. Dibbets-Schneider, E. K. J. Pauwels, G. Germano, and D. E. Atsma
Left Ventricular Function: Correlation of Quantitative Gated SPECT and MR Imaging over a Wide Range of Values
Radiology, November 1, 2000; 217(2): 572 - 575.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
BJR DMFR IMAGING  ALL BIR JOURNALS 
Copyright © 1996 by the British Institute of Radiology.