Magnetic resonance imaging (MRI) helps differentiate renal cell carcinoma with sarcomatoid differentiation from renal cell carcinoma without sarcomatoid differentiation

Purpose The aim of the present study is to identify predictive imaging findings and construct a diagnostic model for differentiating renal cell carcinoma (RCC) with and without sarcomatoid dedifferentiation (sRCC and non-sRCC). Methods This study is a single-center retrospective study. All patients...

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Veröffentlicht in:Abdominal imaging 2022-06, Vol.47 (6), p.2168-2177
Hauptverfasser: Takeuchi, Mitsuru, Froemming, Adam T., Kawashima, Akira, Thapa, Prabin, Carter, Rickey E., Cheville, John C., Thompson, R. Houston, Takahashi, Naoki
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container_end_page 2177
container_issue 6
container_start_page 2168
container_title Abdominal imaging
container_volume 47
creator Takeuchi, Mitsuru
Froemming, Adam T.
Kawashima, Akira
Thapa, Prabin
Carter, Rickey E.
Cheville, John C.
Thompson, R. Houston
Takahashi, Naoki
description Purpose The aim of the present study is to identify predictive imaging findings and construct a diagnostic model for differentiating renal cell carcinoma (RCC) with and without sarcomatoid dedifferentiation (sRCC and non-sRCC). Methods This study is a single-center retrospective study. All patients had magnetic resonance imaging (MRI) with gradient-echo T1-weighted images, single-shot T2-weighted images (T2WI), and enhanced nephrographic phase images. Forty pathologically confirmed sRCCs and 80 non-sRCCs were included in this study. Control cases were selected by matching the tumor diameter and the year of MRI. Two radiologists independently evaluated the following findings: growth pattern, presence of low-intensity area on T2WI in the tumor (T2LIA), presence of non-enhancing area, local tumor stage, and presence of regional lymphadenopathy. Two radiologists measured the diameter of the tumor, T2LIA, and the non-enhancing area. Multivariable logistic regression analysis was used to identify independent predictive factors for differentiating sRCC from non-sRCC. Selected variables were entered in the logistic regression model, and the area under the curve (AUC) was calculated for each reader with 95% confidence intervals (CIs). Results Larger T2LIA-to-tumor diameter ratio, regional lymphadenopathy, and local tumor stage 4 were associated with sRCC, and selected for the subsequent construction of a logistic regression model. With this model, the AUCs were 0.76 (95% CI, 0.66–0.85) and 0.70 (95% CI, 0.59–0.81) for prediction of sRCC. Conclusion In conclusion, larger T2LIA-to-tumor diameter ratio, regional lymphadenopathy, and local tumor stage 4 are predictive findings of sRCC. As a result, the model constructed using these findings demonstrated a moderate degree of diagnostic accuracy.
doi_str_mv 10.1007/s00261-022-03501-9
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Houston ; Takahashi, Naoki</creator><creatorcontrib>Takeuchi, Mitsuru ; Froemming, Adam T. ; Kawashima, Akira ; Thapa, Prabin ; Carter, Rickey E. ; Cheville, John C. ; Thompson, R. Houston ; Takahashi, Naoki</creatorcontrib><description>Purpose The aim of the present study is to identify predictive imaging findings and construct a diagnostic model for differentiating renal cell carcinoma (RCC) with and without sarcomatoid dedifferentiation (sRCC and non-sRCC). Methods This study is a single-center retrospective study. All patients had magnetic resonance imaging (MRI) with gradient-echo T1-weighted images, single-shot T2-weighted images (T2WI), and enhanced nephrographic phase images. Forty pathologically confirmed sRCCs and 80 non-sRCCs were included in this study. Control cases were selected by matching the tumor diameter and the year of MRI. Two radiologists independently evaluated the following findings: growth pattern, presence of low-intensity area on T2WI in the tumor (T2LIA), presence of non-enhancing area, local tumor stage, and presence of regional lymphadenopathy. Two radiologists measured the diameter of the tumor, T2LIA, and the non-enhancing area. Multivariable logistic regression analysis was used to identify independent predictive factors for differentiating sRCC from non-sRCC. Selected variables were entered in the logistic regression model, and the area under the curve (AUC) was calculated for each reader with 95% confidence intervals (CIs). Results Larger T2LIA-to-tumor diameter ratio, regional lymphadenopathy, and local tumor stage 4 were associated with sRCC, and selected for the subsequent construction of a logistic regression model. With this model, the AUCs were 0.76 (95% CI, 0.66–0.85) and 0.70 (95% CI, 0.59–0.81) for prediction of sRCC. Conclusion In conclusion, larger T2LIA-to-tumor diameter ratio, regional lymphadenopathy, and local tumor stage 4 are predictive findings of sRCC. As a result, the model constructed using these findings demonstrated a moderate degree of diagnostic accuracy.</description><identifier>ISSN: 2366-0058</identifier><identifier>ISSN: 2366-004X</identifier><identifier>EISSN: 2366-0058</identifier><identifier>DOI: 10.1007/s00261-022-03501-9</identifier><identifier>PMID: 35381868</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Bladder ; Carcinoma, Renal Cell - diagnostic imaging ; Carcinoma, Renal Cell - pathology ; Cell differentiation ; Confidence intervals ; Diagnostic systems ; Diameters ; Differentiation ; Female ; Gastroenterology ; Growth patterns ; Hepatology ; Humans ; Image enhancement ; Imaging ; Kidney cancer ; Kidney Neoplasms - diagnostic imaging ; Kidney Neoplasms - pathology ; Kidneys ; Lymphadenopathy ; Magnetic Resonance Imaging ; Male ; Medical diagnosis ; Medical imaging ; Medicine ; Medicine &amp; Public Health ; Radiology ; Regression analysis ; Regression models ; Renal cell carcinoma ; Resonance ; Retroperitoneum ; Retrospective Studies ; Sarcoma ; Statistical analysis ; Tumors ; Ureters</subject><ispartof>Abdominal imaging, 2022-06, Vol.47 (6), p.2168-2177</ispartof><rights>The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2022</rights><rights>2022. 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Houston</creatorcontrib><creatorcontrib>Takahashi, Naoki</creatorcontrib><title>Magnetic resonance imaging (MRI) helps differentiate renal cell carcinoma with sarcomatoid differentiation from renal cell carcinoma without sarcomatoid differentiation</title><title>Abdominal imaging</title><addtitle>Abdom Radiol</addtitle><addtitle>Abdom Radiol (NY)</addtitle><description>Purpose The aim of the present study is to identify predictive imaging findings and construct a diagnostic model for differentiating renal cell carcinoma (RCC) with and without sarcomatoid dedifferentiation (sRCC and non-sRCC). Methods This study is a single-center retrospective study. All patients had magnetic resonance imaging (MRI) with gradient-echo T1-weighted images, single-shot T2-weighted images (T2WI), and enhanced nephrographic phase images. Forty pathologically confirmed sRCCs and 80 non-sRCCs were included in this study. Control cases were selected by matching the tumor diameter and the year of MRI. Two radiologists independently evaluated the following findings: growth pattern, presence of low-intensity area on T2WI in the tumor (T2LIA), presence of non-enhancing area, local tumor stage, and presence of regional lymphadenopathy. Two radiologists measured the diameter of the tumor, T2LIA, and the non-enhancing area. Multivariable logistic regression analysis was used to identify independent predictive factors for differentiating sRCC from non-sRCC. Selected variables were entered in the logistic regression model, and the area under the curve (AUC) was calculated for each reader with 95% confidence intervals (CIs). Results Larger T2LIA-to-tumor diameter ratio, regional lymphadenopathy, and local tumor stage 4 were associated with sRCC, and selected for the subsequent construction of a logistic regression model. With this model, the AUCs were 0.76 (95% CI, 0.66–0.85) and 0.70 (95% CI, 0.59–0.81) for prediction of sRCC. Conclusion In conclusion, larger T2LIA-to-tumor diameter ratio, regional lymphadenopathy, and local tumor stage 4 are predictive findings of sRCC. 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Houston</au><au>Takahashi, Naoki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic resonance imaging (MRI) helps differentiate renal cell carcinoma with sarcomatoid differentiation from renal cell carcinoma without sarcomatoid differentiation</atitle><jtitle>Abdominal imaging</jtitle><stitle>Abdom Radiol</stitle><addtitle>Abdom Radiol (NY)</addtitle><date>2022-06-01</date><risdate>2022</risdate><volume>47</volume><issue>6</issue><spage>2168</spage><epage>2177</epage><pages>2168-2177</pages><issn>2366-0058</issn><issn>2366-004X</issn><eissn>2366-0058</eissn><abstract>Purpose The aim of the present study is to identify predictive imaging findings and construct a diagnostic model for differentiating renal cell carcinoma (RCC) with and without sarcomatoid dedifferentiation (sRCC and non-sRCC). Methods This study is a single-center retrospective study. All patients had magnetic resonance imaging (MRI) with gradient-echo T1-weighted images, single-shot T2-weighted images (T2WI), and enhanced nephrographic phase images. Forty pathologically confirmed sRCCs and 80 non-sRCCs were included in this study. Control cases were selected by matching the tumor diameter and the year of MRI. Two radiologists independently evaluated the following findings: growth pattern, presence of low-intensity area on T2WI in the tumor (T2LIA), presence of non-enhancing area, local tumor stage, and presence of regional lymphadenopathy. Two radiologists measured the diameter of the tumor, T2LIA, and the non-enhancing area. Multivariable logistic regression analysis was used to identify independent predictive factors for differentiating sRCC from non-sRCC. Selected variables were entered in the logistic regression model, and the area under the curve (AUC) was calculated for each reader with 95% confidence intervals (CIs). Results Larger T2LIA-to-tumor diameter ratio, regional lymphadenopathy, and local tumor stage 4 were associated with sRCC, and selected for the subsequent construction of a logistic regression model. With this model, the AUCs were 0.76 (95% CI, 0.66–0.85) and 0.70 (95% CI, 0.59–0.81) for prediction of sRCC. Conclusion In conclusion, larger T2LIA-to-tumor diameter ratio, regional lymphadenopathy, and local tumor stage 4 are predictive findings of sRCC. As a result, the model constructed using these findings demonstrated a moderate degree of diagnostic accuracy.</abstract><cop>New York</cop><pub>Springer US</pub><pmid>35381868</pmid><doi>10.1007/s00261-022-03501-9</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-7946-6078</orcidid></addata></record>
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subjects Bladder
Carcinoma, Renal Cell - diagnostic imaging
Carcinoma, Renal Cell - pathology
Cell differentiation
Confidence intervals
Diagnostic systems
Diameters
Differentiation
Female
Gastroenterology
Growth patterns
Hepatology
Humans
Image enhancement
Imaging
Kidney cancer
Kidney Neoplasms - diagnostic imaging
Kidney Neoplasms - pathology
Kidneys
Lymphadenopathy
Magnetic Resonance Imaging
Male
Medical diagnosis
Medical imaging
Medicine
Medicine & Public Health
Radiology
Regression analysis
Regression models
Renal cell carcinoma
Resonance
Retroperitoneum
Retrospective Studies
Sarcoma
Statistical analysis
Tumors
Ureters
title Magnetic resonance imaging (MRI) helps differentiate renal cell carcinoma with sarcomatoid differentiation from renal cell carcinoma without sarcomatoid differentiation
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