Purpose The purpose was to assess image quality of portal-venous phase dual-energy computed tomography (DECT) for liver lesions. Methods We performed 120-kVp-equivalent linear-blended (LB) and monoenergetic reconstructions from 40 to 190 keV by standard (VMI) and advanced virtual monoenergetic (VMI+) methods. Diagnostic performance, and quantitative and qualitative image analyses were assessed and compared. Results Liver contrast to noise ratio peaked at 40 keV_VMI+, while image quality and reader preference peaked at 50 keV_VMI+. 50 keV_VMI+ scored overall higher diagnostic performance: lesion sensitivity 95.4% vs. 83.3% for both 75 keV_VMI and LB. Conclusions DECT improves assessment of hypoenhancing liver lesions on portal venous phase. 50 keV_VMI+ demonstrated the highest image quality and diagnostic performance over VMI and LB.

Can dual-energy computed tomography improve visualization of hypoenhancing liver lesions in portal venous phase? Assessment of advanced image-based virtual monoenergetic images / Caruso, Damiano; DE CECCO, CARLO NICOLA; Schoepf, U. Joseph; Schaefer, Amanda R.; Leland, Parker W.; Johnson, Dustin; Laghi, Andrea; Hardie, Andrew D.. - In: CLINICAL IMAGING. - ISSN 0899-7071. - ELETTRONICO. - 41:(2017), pp. 118-124. [10.1016/j.clinimag.2016.10.015]

Can dual-energy computed tomography improve visualization of hypoenhancing liver lesions in portal venous phase? Assessment of advanced image-based virtual monoenergetic images

CARUSO, DAMIANO;DE CECCO, CARLO NICOLA;LAGHI, ANDREA;
2017

Abstract

Purpose The purpose was to assess image quality of portal-venous phase dual-energy computed tomography (DECT) for liver lesions. Methods We performed 120-kVp-equivalent linear-blended (LB) and monoenergetic reconstructions from 40 to 190 keV by standard (VMI) and advanced virtual monoenergetic (VMI+) methods. Diagnostic performance, and quantitative and qualitative image analyses were assessed and compared. Results Liver contrast to noise ratio peaked at 40 keV_VMI+, while image quality and reader preference peaked at 50 keV_VMI+. 50 keV_VMI+ scored overall higher diagnostic performance: lesion sensitivity 95.4% vs. 83.3% for both 75 keV_VMI and LB. Conclusions DECT improves assessment of hypoenhancing liver lesions on portal venous phase. 50 keV_VMI+ demonstrated the highest image quality and diagnostic performance over VMI and LB.
2017
dual-energy ct; liver lesion; monoenergetic; portal venous phase; adult; aged; female; humans; image processing, computer-assisted; liver; liver neoplasms; male; middle aged; portal vein; prospective studies; radiography, dual-energy scanned projection; reproducibility of results; sensitivity and specificity; signal-to-noise ratio; tomography, x-ray computed; radiology, nuclear medicine and imaging
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Can dual-energy computed tomography improve visualization of hypoenhancing liver lesions in portal venous phase? Assessment of advanced image-based virtual monoenergetic images / Caruso, Damiano; DE CECCO, CARLO NICOLA; Schoepf, U. Joseph; Schaefer, Amanda R.; Leland, Parker W.; Johnson, Dustin; Laghi, Andrea; Hardie, Andrew D.. - In: CLINICAL IMAGING. - ISSN 0899-7071. - ELETTRONICO. - 41:(2017), pp. 118-124. [10.1016/j.clinimag.2016.10.015]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/961744
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