Utility of Radial Scanning for the Identification of Arterial Hypervascularity of Hepatocellular Carcinoma on Gadoxetic Acid-Enhanced Magnetic Resonance Images.
Aged
Aged, 80 and over
Angiography
/ methods
Carcinoma, Hepatocellular
/ blood supply
Female
Gadolinium DTPA
/ administration & dosage
Hepatic Artery
/ diagnostic imaging
Humans
Liver Neoplasms
/ blood supply
Magnetic Resonance Imaging
Male
Middle Aged
Radiographic Image Interpretation, Computer-Assisted
/ methods
Retrospective Studies
Signal-To-Noise Ratio
Tomography, X-Ray Computed
Journal
Journal of computer assisted tomography
ISSN: 1532-3145
Titre abrégé: J Comput Assist Tomogr
Pays: United States
ID NLM: 7703942
Informations de publication
Date de publication:
Historique:
pubmed:
5
3
2021
medline:
29
7
2021
entrez:
4
3
2021
Statut:
ppublish
Résumé
This study aimed to compare the accuracy of assessing the arterial hypervascularity of hepatocellular carcinoma (HCC) on dynamic computed tomography (CT) scans and gadoxetic acid (EOB)-enhanced magnetic resonance imaging (MRI) scans performed with radial sampling. We studied the images of 40 patients with hypervascular HCC. A radiologist recorded the standard deviation of the attenuation (or the signal intensity [SI]) in subcutaneous fat tissue as the image noise (N) and calculated the contrast-to-noise ratio (CNR) as follows: (CNR) = (n-ROIT - n-ROIL)/N, where n-ROIT is the mean attenuation (or SI) of the tumor divided by the mean attenuation (or SI) of the aorta and n-ROIL is the mean attenuation (or SI) of the liver parenchyma divided by the mean attenuation (or SI) of the aorta. The CNR was significantly higher on EOB-enhanced MRI than on dynamic CT scans. For the assessment of HCC vascularity, EOB-enhanced MRI scans acquired with radial sampling were more accurate than dynamic CT images.
Identifiants
pubmed: 33661153
doi: 10.1097/RCT.0000000000001139
pii: 00004728-900000000-98940
doi:
Substances chimiques
gadolinium ethoxybenzyl DTPA
0
Gadolinium DTPA
K2I13DR72L
Types de publication
Comparative Study
Journal Article
Observational Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
359-366Informations de copyright
Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.
Déclaration de conflit d'intérêts
K.A. received a research grant from Hitachi, Ltd. T.N., K.H., M.T., R.S., and Y.B. are employees of Hitachi, Ltd. The other authors declare that they have no conflict of interest.
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