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Added value of 2D shear wave imaging of the gallbladder bed of the liver for acute cholecystitis

PURPOSE: The purpose of this study was to evaluate whether shear wave elastography (SWE) and the shear wave dispersion slope (SWD) obtained from 2-dimensional shear wave imaging (2D-SWI) of the gallbladder (GB) bed of the liver could be helpful in the diagnosis of acute cholecystitis. METHODS: We in...

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Autores principales: Ko, Ara, Lee, Eun Sun, Park, Hyun Jeong, Park, Sung Bin, Kim, Hee Sung, Choi, Byung Ihn
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Society of Ultrasound in Medicine 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7515659/
https://www.ncbi.nlm.nih.gov/pubmed/32962334
http://dx.doi.org/10.14366/usg.19060
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author Ko, Ara
Lee, Eun Sun
Park, Hyun Jeong
Park, Sung Bin
Kim, Hee Sung
Choi, Byung Ihn
author_facet Ko, Ara
Lee, Eun Sun
Park, Hyun Jeong
Park, Sung Bin
Kim, Hee Sung
Choi, Byung Ihn
author_sort Ko, Ara
collection PubMed
description PURPOSE: The purpose of this study was to evaluate whether shear wave elastography (SWE) and the shear wave dispersion slope (SWD) obtained from 2-dimensional shear wave imaging (2D-SWI) of the gallbladder (GB) bed of the liver could be helpful in the diagnosis of acute cholecystitis. METHODS: We included 44 patients referred for abdominal ultrasonography (US) under the impression of acute cholecystitis from April 2018 to March 2019. Patients with chronic liver disease were excluded from this study. In addition to routine upper abdominal US, we performed 2D-SWI including liver stiffness measurements by SWE and SWD, which reflects tissue viscosity. 2D-SWI was performed at the GB bed of the liver through the right intercostal approach at least 3 times with different frames. We assessed typical US findings and the added value of 2D-SWI in diagnosing acute cholecystitis. Histopathologic results of surgical specimens were used as the standard of reference. If a surgical specimen was unavailable, a bile fluid test or clinical follow-up for more than 3 months served as the reference standard. RESULTS: The optimal cutoff values for SWE and SWD were 8 kPa and 10.9 (m/sec)/kHz, respectively. In the univariate analysis, SWE, GB distension, and sludge were predictive factors of acute cholecystitis. In the multivariate analysis, categorized SWE was the only significant predictor (P<0.01). By using 2D-SWI, the diagnostic performance of two readers did not significantly increase, although the inter-reader agreement improved (k=0.654-0.778). CONCLUSION: 2D-SWI of the GB bed of the liver could be helpful for diagnosing acute cholecystitis.
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spelling pubmed-75156592020-10-03 Added value of 2D shear wave imaging of the gallbladder bed of the liver for acute cholecystitis Ko, Ara Lee, Eun Sun Park, Hyun Jeong Park, Sung Bin Kim, Hee Sung Choi, Byung Ihn Ultrasonography Original Article PURPOSE: The purpose of this study was to evaluate whether shear wave elastography (SWE) and the shear wave dispersion slope (SWD) obtained from 2-dimensional shear wave imaging (2D-SWI) of the gallbladder (GB) bed of the liver could be helpful in the diagnosis of acute cholecystitis. METHODS: We included 44 patients referred for abdominal ultrasonography (US) under the impression of acute cholecystitis from April 2018 to March 2019. Patients with chronic liver disease were excluded from this study. In addition to routine upper abdominal US, we performed 2D-SWI including liver stiffness measurements by SWE and SWD, which reflects tissue viscosity. 2D-SWI was performed at the GB bed of the liver through the right intercostal approach at least 3 times with different frames. We assessed typical US findings and the added value of 2D-SWI in diagnosing acute cholecystitis. Histopathologic results of surgical specimens were used as the standard of reference. If a surgical specimen was unavailable, a bile fluid test or clinical follow-up for more than 3 months served as the reference standard. RESULTS: The optimal cutoff values for SWE and SWD were 8 kPa and 10.9 (m/sec)/kHz, respectively. In the univariate analysis, SWE, GB distension, and sludge were predictive factors of acute cholecystitis. In the multivariate analysis, categorized SWE was the only significant predictor (P<0.01). By using 2D-SWI, the diagnostic performance of two readers did not significantly increase, although the inter-reader agreement improved (k=0.654-0.778). CONCLUSION: 2D-SWI of the GB bed of the liver could be helpful for diagnosing acute cholecystitis. Korean Society of Ultrasound in Medicine 2020-10 2020-03-23 /pmc/articles/PMC7515659/ /pubmed/32962334 http://dx.doi.org/10.14366/usg.19060 Text en Copyright © 2020 Korean Society of Ultrasound in Medicine (KSUM) This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Ko, Ara
Lee, Eun Sun
Park, Hyun Jeong
Park, Sung Bin
Kim, Hee Sung
Choi, Byung Ihn
Added value of 2D shear wave imaging of the gallbladder bed of the liver for acute cholecystitis
title Added value of 2D shear wave imaging of the gallbladder bed of the liver for acute cholecystitis
title_full Added value of 2D shear wave imaging of the gallbladder bed of the liver for acute cholecystitis
title_fullStr Added value of 2D shear wave imaging of the gallbladder bed of the liver for acute cholecystitis
title_full_unstemmed Added value of 2D shear wave imaging of the gallbladder bed of the liver for acute cholecystitis
title_short Added value of 2D shear wave imaging of the gallbladder bed of the liver for acute cholecystitis
title_sort added value of 2d shear wave imaging of the gallbladder bed of the liver for acute cholecystitis
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7515659/
https://www.ncbi.nlm.nih.gov/pubmed/32962334
http://dx.doi.org/10.14366/usg.19060
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