caa a22 4500 605493154 CHVBK 20210128100519.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00261-015-0468-y doi (NATIONALLICENCE)springer-10.1007/s00261-015-0468-y Quantitative assessment of solid renal masses by contrast-enhanced ultrasound with time-intensity curves: how we do it [Elektronische Daten] [Kevin King, Mittul Gulati, Harshawn Malhi, Darryl Hwang, Inderbir Gill, Phillip Cheng, Edward Grant, Vinay Duddalwar] Purpose: To discuss the evaluation of the enhancement curve over time of the major renal cell carcinoma (RCC) subtypes, oncocytoma, and lipid-poor angiomyolipoma, to aid in the preoperative differentiation of these entities. Differentiation of these lesions is important, given the different prognoses of the subtypes, as well as the desire to avoid resecting benign lesions. Methods: We discuss findings from CT, MR, and US, but with a special emphasis on contrast-enhanced ultrasound (CEUS). CEUS technique is described, as well as time-intensity curve analysis. Results: Examples of each of the major RCC subtypes (clear cell, papillary, and chromophobe) are shown, as well as examples of oncocytoma and lipid-poor angiomyolipoma. For each lesion, the time-intensity curve of enhancement on CEUS is reviewed, and correlated with the enhancement curve over time reported for multiphase CT and MR. Conclusions: Preoperative differentiation of the most common solid renal masses is important, and the time-intensity curves of these lesions show some distinguishing features that can aid in this differentiation. The use of CEUS is increasing, and as a modality it is especially well suited to the evaluation of the time-intensity curve. Springer Science+Business Media New York, 2015 Renal mass nationallicence Contrast-enhanced ultrasound nationallicence Time-intensity curve nationallicence Renal cell carcinoma nationallicence Oncocytoma nationallicence Angiomyolipoma nationallicence King Kevin Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut Gulati Mittul Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut Malhi Harshawn Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut Hwang Darryl Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut Gill Inderbir Department of Urology, Keck USC School of Medicine, 1500 San Pablo St, 90033, Los Angeles, CA, USA aut Cheng Phillip Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut Grant Edward Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut Duddalwar Vinay Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2461-2471 0942-8925 40:7<2461 2015 40 261 https://doi.org/10.1007/s00261-015-0468-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 review-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00261-015-0468-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- King Kevin Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut NATIONALLICENCE 700 1- Gulati Mittul Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut NATIONALLICENCE 700 1- Malhi Harshawn Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut NATIONALLICENCE 700 1- Hwang Darryl Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut NATIONALLICENCE 700 1- Gill Inderbir Department of Urology, Keck USC School of Medicine, 1500 San Pablo St, 90033, Los Angeles, CA, USA aut NATIONALLICENCE 700 1- Cheng Phillip Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut NATIONALLICENCE 700 1- Grant Edward Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut NATIONALLICENCE 700 1- Duddalwar Vinay Department of Radiology, Keck USC School of Medicine, 1500 San Pablo St, 2nd Floor Imaging, 90033, Los Angeles, CA, USA aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/7(2015-10-01), 2461-2471 0942-8925 40:7<2461 2015 40 261