Assessment of Cystic Renal Masses Based on Bosniak Classification: Comparison of CT, Contrast-enhanced US, and MR Imaging.

Park,  Byung Kwan; Kim,  Bohyun; Kim,  Seung Hyup; Ko,  Kyungran; Lee,  Hyun Moo; Choi,  Han Yong

Journal of Korean Society of Ultrasound in Medicine 2007;26(4): 165-173.

Byung Kwan Park, Bohyun Kim, Seung Hyup Kim, Kyungran Ko, Hyun Moo Lee, Han Yong Choi

¹Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea. rapark@skku.edu
²Department of Radiology, Seoul National University College of Medicine and the Institute of Radiation Medicine, SNUMRC, Korea.
³Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea.

Published online: December 1, 2007.

ABSTRACT

Almost all cystic renal masses are detected incidentally during ultrasonography (US), computed tomography (CT), and magnetic resonance (MR) imaging. Although the Bosniak classification of these lesions is based on CT imaging features, Contrast-enhanced US (CEUS) or MR imaging also can be used for patients who are found to have contraindicated to contrast-enhanced CT examinations. Here, we compare the usefulness of the following imaging modalities for evaluating cystic renal masses based on their imaging features: CT versus CEUS, CT versus MR, and CEUS versus MR.

Keywords: Kidney; Cysts; Neoplasms; Computed tomography (CT); Ultrasonography; Magenetic Resonance Imaging; Staging