Multisegment and halfscan reconstruction of 16-slice computed tomography for assessment of regional and global left ventricular myocardial function

Investigative Radiology
Marc DeweyAlexander Lembcke

Abstract

We sought to prospectively compare multisegment and halfscan reconstruction of 16-slice computed tomography (CT) for the assessment of regional and global left ventricular myocardial function with magnetic resonance imaging (MRI) as the reference standard. Forty-two patients underwent CT with 16 x 0.5-mm detector collimation. Electrocardiogram-gated reconstructions were generated with multisegment reconstruction (using up to 4 segments correlated with the raw data of up to 4 heartbeats) and standard halfscan reconstruction. Steady-state free-precession cine MRI was acquired within 24 hours. More normal myocardial segments were identified correctly with multisegment (95%, 620/656) compared with halfscan reconstruction (88%, 582/656) of CT (P < 0.001). Also, the accuracy (92% [657/714] vs. 87% [620/714]) and rate of nondiagnostic segments (0% vs. 5% [33/714]) were significantly better when using multisegment reconstruction (P < 0.001). The image quality with multisegment reconstruction was significantly superior to that achieved with halfscan reconstruction (P < 0.001). In the assessment of global left ventricular function, multisegment and halfscan reconstruction of CT showed high correlations for all parameters with MRI, wherea...Continue Reading

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Citations

Mar 1, 2007·PloS One·Eva SchönenbergerMarc Dewey
Nov 3, 2011·The British Journal of Radiology·J GreupnerM Dewey
Nov 10, 2012·European Journal of Radiology·Paul ApfaltrerUllrich Ebersberger
Aug 9, 2008·European Journal of Radiology·Thomas S KristensenHenning Kelbaek
Jun 21, 2008·Seminars in Ultrasound, CT, and MR·Dirk SchnapauffMarc Dewey
Jan 13, 2015·Journal of Cardiovascular Computed Tomography·Asim RizviQuynh A Truong
Jan 16, 2007·Investigative Radiology·Marc DeweyBernd Hamm
Jun 15, 2007·Investigative Radiology·Andreas H MahnkenJoachim E Wildberger

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