title: Split renal function measured by triphasic helical CT.
abstract: OBJECTIVE
  To present a method for calculating split renal function solely from routine triphasic helical computed tomography (CT).
  
  
  METHODS
  We retrospectively included 26 adult patients who received renal scintigraphy and triphasic CT within 4 weeks in the years 2003 and 2004. All scans were performed using a standard abdominal protocol. Split renal function was calculated as relative single-kidney glomerular filtration rate (GFR) using a simplified "two-point Patlak plot" technique. As a reference method, split renal function was determined from renal scintigraphy using the standard technique.
  
  
  RESULTS
  Linear correlation between the two methods was r=0.91, split renal function (CT)=0.0266+0.9573 x split renal function (scintigraphy).
  
  
  CONCLUSIONS
  Split renal function can be measured accurately by minimally extended triphasic CT.
authors.affiliation: Radiologische Gemeinschaftspraxis am Evangelischen Krankenhaus, Paul-Zipp-Str. 171, 35398 Giessen, Germany. nils.hackstein@radiol.med.uni-giessen.de
authors.forename: Nils
authors.initials: N
authors.lastname: Hackstein
authors.forename: Thomas
authors.initials: T
authors.lastname: Buch
authors.forename: Wigbert S
authors.initials: WS
authors.lastname: Rau
authors.forename: Rolf
authors.initials: R
authors.lastname: Weimer
authors.forename: Rigobert
authors.initials: R
authors.lastname: Klett
mesh_terms: D000328:Adult; D000368:Aged; D003287:Contrast Media / Q000493:pharmacokinetics*; D005260:Female; D005919:Glomerular Filtration Rate; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging / Q000502:physiology*; D007677:Kidney Function Tests / Q000379:methods*; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D011877:Radionuclide Imaging; D012189:Retrospective Studies; D036542:Tomography, Spiral Computed
chemical_list: D003287:Contrast Media