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Published on: April 24, 2020
Split renal function measured by triphasic helical CT
Nils Hackstein1, Thomas Buch, Wigbert S Rau
1Radiologische Gemeinschaftspraxis am Evangelischen Krankenhaus, Paul-Zipp-Str. 171, 35398 Giessen, Germany. nils.hackstein@radiol.med.uni-giessen.de
Purpose:
To present a method for calculating split renal function solely from routine triphasic helical computed tomography (CT).
Subjects And 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).
Conclusion:
Split renal function can be measured accurately by minimally extended triphasic CT.
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