Histotype differentiation of hypo-echoic renal tumors on CEUS: usefulness of enhancement homogeneity and intensity

Verfasser / Beitragende:
[Qing Lu, Li-yun Xue, Bei-jian Huang, Wen-ping Wang, Cui-xian Li]
Ort, Verlag, Jahr:
2015
Enthalten in:
Abdominal Imaging, 40/6(2015-08-01), 1675-1683
Format:
Artikel (online)
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024 7 0 |a 10.1007/s00261-014-0340-5  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00261-014-0340-5 
245 0 0 |a Histotype differentiation of hypo-echoic renal tumors on CEUS: usefulness of enhancement homogeneity and intensity  |h [Elektronische Daten]  |c [Qing Lu, Li-yun Xue, Bei-jian Huang, Wen-ping Wang, Cui-xian Li] 
520 3 |a Purpose: The purpose of this study is to evaluate qualitative and quantitative analysis of contrast-enhanced ultrasound (CEUS) in differential diagnoses of hypo-echoic renal tumor histotypes. Methods: Our study cohort comprised 103 clear cell renal cell carcinomas (ccRCCs), 24 papillary renal cell carcinomas (pRCCs), 28 chromophobe renal cell carcinomas (cRCCs), and 34 angiomyolipomas (AMLs), hypo-echoic on ultrasound, and imaged between January 2011 and December 2013. Enhancement homogeneity and tumor-to-cortex intensity ratio (TOC ratio) were retrospectively analyzed. Results: Overall, heterogeneous enhancement was more common in ccRCCs than AMLs, pRCCs, and cRCCs. TOC ratio showed the trend ccRCC>AML>pRCC=cRCC. Similar trends were seen in tumors <4cm. Using heterogeneous enhancement or TOC ratio >107.5% to differentiate ccRCC from other histotypes, the sensitivity, specificity, positive and negative predictive values were 93.1%, 74.5%, 84.8%, and 87.5%, respectively. Tumors >4cm exhibited considerable overlap in enhancement homogeneity among different histotypes. TOC ratios were similar between homo- and heterogeneously enhancing tumors for ccRCCs and for pRCCs and cRCCs, but higher in homogeneously enhancing than heterogeneously enhancing AMLs. In homo- and heterogeneously enhancing tumors, TOC ratios followed the trends ccRCCs>AMLs>pRCCs=cRCCs and ccRCCs>AMLs=pRCCs=cRCCs, respectively. With TOC ratio >105.81% and >72.37% to differentiate homo- and heterogeneously enhancing ccRCCs from other histotypes in tumors >4cm with same enhancement homogeneity, the sensitivity, specificity, positive and negative predictive values were 70.0%, 85.7%, 70.0%, 85.7%, and 91.7%, 94.4%, 95.7%, 89.5%, respectively. Conclusion: CEUS homogeneity and TOC ratio are helpful in differential diagnosis of hypo-echoic renal tumor histotypes. Diameter and enhancement homogeneity should be considered when deciding the diagnostic TOC ratio cutoff. 
540 |a Springer Science+Business Media New York, 2014 
690 7 |a Histotype  |2 nationallicence 
690 7 |a Renal tumor  |2 nationallicence 
690 7 |a Contrast-enhanced ultrasound  |2 nationallicence 
690 7 |a Quantitative analysis  |2 nationallicence 
700 1 |a Lu  |D Qing  |u Department of Ultrasound, Shanghai Medical Imaging Institute, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, 200032, Shanghai, China  |4 aut 
700 1 |a Xue  |D Li-yun  |u Department of Ultrasound, Shanghai Medical Imaging Institute, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, 200032, Shanghai, China  |4 aut 
700 1 |a Huang  |D Bei-jian  |u Department of Ultrasound, Shanghai Medical Imaging Institute, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, 200032, Shanghai, China  |4 aut 
700 1 |a Wang  |D Wen-ping  |u Department of Ultrasound, Shanghai Medical Imaging Institute, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, 200032, Shanghai, China  |4 aut 
700 1 |a Li  |D Cui-xian  |u Department of Ultrasound, Shanghai Medical Imaging Institute, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, 200032, Shanghai, China  |4 aut 
773 0 |t Abdominal Imaging  |d Springer US; http://www.springer-ny.com  |g 40/6(2015-08-01), 1675-1683  |x 0942-8925  |q 40:6<1675  |1 2015  |2 40  |o 261 
856 4 0 |u https://doi.org/10.1007/s00261-014-0340-5  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00261-014-0340-5  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Lu  |D Qing  |u Department of Ultrasound, Shanghai Medical Imaging Institute, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, 200032, Shanghai, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Xue  |D Li-yun  |u Department of Ultrasound, Shanghai Medical Imaging Institute, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, 200032, Shanghai, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Huang  |D Bei-jian  |u Department of Ultrasound, Shanghai Medical Imaging Institute, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, 200032, Shanghai, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D Wen-ping  |u Department of Ultrasound, Shanghai Medical Imaging Institute, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, 200032, Shanghai, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Li  |D Cui-xian  |u Department of Ultrasound, Shanghai Medical Imaging Institute, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Xuhui District, 200032, Shanghai, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Abdominal Imaging  |d Springer US; http://www.springer-ny.com  |g 40/6(2015-08-01), 1675-1683  |x 0942-8925  |q 40:6<1675  |1 2015  |2 40  |o 261