title: Percutaneous ultrasound-guided renal biopsy; A comparison of axial vs. sagittal probe location.
abstract: BACKGROUND
  Renal biopsy is an important method for diagnosis of renal parenchymal abnormalities. Here, we compare the effectiveness and complications of percutaneous ultrasound-guided renal biopsy using axial vs. sagittal probe locations.
  
  
  METHODS
  In a cross-sectional survey, in 2012, patients with a nephrologist order were biopsied by a radiology resident. Renal biopsy was done on 15 patients using axial (A group) and the same number of biopsies done with sagittal probe location (S group). The two groups were compared in term of the yields and complications of each method.
  
  
  RESULTS
  In the A group, the ratio of glomeruli gathered to the number of obtained samples was significantly higher than in the S group. Nine patients in the A group (60%) required only two samplings, whereas 66.7% in the S group required more than two attempts. Microscopic hematuria was more common in the A; conversely, gross hematuria was less common in the A group. Meagre hematomas were more frequent in the S group. When compared with hemoglobin level before biopsy, its level 24 hours after biopsy was similar within groups.
  
  
  CONCLUSIONS
  Our study shows that percutaneous ultrasound-guided renal biopsy using axial probe provides better yield with fewer efforts and fewer serious complications.
authors.affiliation: Resident of Radiology, Iran University of Medical Sciences, Tehran, Iran (Islamic Republic of).
authors.forename: Farnaz
authors.initials: F
authors.lastname: Shamshirgar
authors.affiliation: Department of Radiology, Hasheminejad Kidney Center (HKC), Iran University of Medical Sciences, Tehran, Iran (Islamic Republic of).
authors.forename: Seyed Morteza
authors.initials: SM
authors.lastname: Bagheri
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D061705:Image-Guided Biopsy; D007674:Kidney Diseases / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D018084:Ultrasonography, Interventional / Q000379:methods*
keywords: Percutaneous renal biopsy; Ultra-sonography probe location; Ultrasound-guided renal biopsy