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. Author manuscript; available in PMC: 2012 Jun 25.
Published in final edited form as: J Am Coll Cardiol. 2009 May 5;53(18):1699–1707. doi: 10.1016/j.jacc.2009.01.056

Figure 6. Effect of slice thickness on de-MDCT density and signal to noise ratios (SNR) and contrast to noise ratios (CNR).(.

Figure 6

A) Signal density in Hounsfield Units (HU) for the left ventricular blood pool (LVBP), infarcted myocardium (IN), the peri-infarct zone (PIZ) and the remote myocardium (RE), LVBP and RE do not show different attenuation values at different slice thickness, while IN values (*p<0.05, 1 versus 4mm and 2 versus 4mm; † p=0.01,1 versus 8mm, 2 versus 8mm) and PIZ values (‡ p<0.01, 1 versus 4mm and 8mm, and 2 mm versus 8mm)change with the reconstructed slice thickness parameters(§p=0.007 and p=0.002, respectively). (B) Mean MDCT SNR (8 versus 2mm and 1mm, († p=0.01 and ‡ p<0.01 respectively; and 4 versus 1mm, *p<0.05; ‡ p=0.003) and (C) mean MDCT CNR (8 versus 2mm and 1mm, ‡ p<0.01; ** p=0.008) change with the reconstructed slice thickness, which reflects reduced imaging quality of thinner reconstructed slices.