[Renal needle biopsy: a comparative study of fluoroscopic and echographic guidance].

The authors report a comparative study of two renal biopsy procedures: fluoroscopic guided biopsy and ultrasound guided biopsy. Results were similar with an interpretability rate of 90%. Morbidity was found to be equal in the two group. However, ultrasound guided biopsy is superior to fluoroscopy guided biopsy in two respects: for patients with renal failure in whom IVP is not possible; for the medical team and patient, who are not exposed to radiation.