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European Radiology
Published in: European Radiology 1/2005

01-01-2005 | Cardiac

Multi-detector row computed tomography of the heart: does a multi-segment reconstruction algorithm improve left ventricular volume measurements?

Authors: Kai Uwe Juergens, David Maintz, Matthias Grude, Jan M. Boese, Britta Heimes, Eva Maria Fallenberg, Walter Heindel, Roman Fischbach

Published in: European Radiology | Issue 1/2005

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Abstract

A multi-segment cardiac image reconstruction algorithm in multi-detector row computed tomography (MDCT) was evaluated regarding temporal resolution and determination of left ventricular (LV) volumes and global LV function. MDCT and cine magnetic resonance (CMR) imaging were performed in 12 patients with known or suspected coronary artery disease. Patients gave informed written consent for the MDCT and the CMR exam. MDCT data were reconstructed using the standard adaptive cardiac volume (ACV) algorithm as well as a multi-segment algorithm utilizing data from three, five and seven rotations. LV end-diastolic (LV-EDV) and end-systolic volumes and ejection fraction (LV-EF) were determined from short-axis image reformations and compared to CMR data. Mean temporal resolution achieved was 192±24 ms using the ACV algorithm and improved significantly utilizing the three, five and seven data segments to 139±12, 113±13 and 96±11 ms (P<0.001 for each). Mean LV-EDV was without significant differences using the ACV algorithm, the multi-segment approach and CMR imaging. Despite improved temporal resolution with multi-segment image reconstruction, end-systolic volumes were less accurately measured (mean differences 3.9±11.8 ml to 8.1±13.9 ml), resulting in a consistent underestimation of LV-EF by 2.3–5.4% in comparison to CMR imaging (Bland-Altman analysis). Multi-segment image reconstruction improves temporal resolution compared to the standard ACV algorithm, but this does not result in a benefit for determination of LV volume and function.
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Metadata
Title
Multi-detector row computed tomography of the heart: does a multi-segment reconstruction algorithm improve left ventricular volume measurements?
Authors
Kai Uwe Juergens
David Maintz
Matthias Grude
Jan M. Boese
Britta Heimes
Eva Maria Fallenberg
Walter Heindel
Roman Fischbach
Publication date
01-01-2005
Publisher
Springer-Verlag
Published in
European Radiology / Issue 1/2005
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-004-2530-y

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