title: [Correction of unilateral 131I-hippuran clearance by sonographic evaluation of kidney depth (author's transl)].
abstract: In 47 patients the value of kidney depth measurements for the correction of unilateral 131-I-hippuran clearances was studied using ultrasonography. The accuracy of this method was found to be superior to that of the lateral scintigram. In cases with normal cranio-caudal position or slight unilateral caudal dystopia the maximum difference in kidney depth was 1.25 cm and a maximum correction of the unilateral clearance in 2.8% was necessary. Kidneys with unilateral caudal dystopia differed up to 6 cm in depth, leading to a correction by 12%. Our findings indicate that a correction for kidney depth is necessary if one kidney shows significant caudal dystopia and slight dystopia in the supine position. In patients with nephroptosis position-dependent alterations of unilateral perfusion can only be evaluated by correcting for kidney depth.
mesh_terms: D000328:Adult; D006801:Humans; D007465:Iodohippuric Acid; D007668:Kidney / Q000000981:diagnostic imaging; D008875:Middle Aged; D011187:Posture; D011866:Radioisotope Renography / Q000379:methods*; D014463:Ultrasonography
chemical_list: D007465:Iodohippuric Acid
vernacular_title: Die Bedeutung der Nierentiefenkorrektur bei der seitengetrennten 131-j-hippuran-Clearance mit Hilfe der Sonographie.