Renal Biopsy–Related Hemorrhage: Frequency and Comparison of CT and Sonography

Authors:
  • JBJerome A. Barakos
    Jerome A. Barakos
  • EKElaine M. Kaptein
    Elaine M. Kaptein
  • PFPaul E. Friedman
    Paul E. Friedman
  • GFGeorge Fouladian
    George Fouladian
  • WBWilliam D. Boswell
    William D. Boswell
  • JHJames Halls
    James Halls
  • SMShaul G. Massry
    Shaul G. Massry
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Abstract
To evaluate the frequency of retroperitoneal hemorrhage related to renal biopsy, we prospectively assessed 182 patients (200 biopsies) using state-of-the-art CT and ultrasound. Our study revealed definite CT evidence of hemorrhage after 90.9% of biopsies. In a blinded analysis of images obtained in biopsied patients and in unbiopsied control patients the overall accuracy of CT was 93.8 versus 76.4% for ultrasound. Our data suggest that detectable hemorrhage is virtually always seen after renal biopsy and its frequency is much higher than noted in earlier studies.