Semiautomated renal region-of-interest selection method: validation in a dog model.
A successful method of automated region-of-interest (ROI) selection by polar edge search for use in technetium-99m-diethylenetriaminepentacetate (99mTc-DTPA) renography is presented in a dog model. The accuracy of the resultant ROI was tested by comparing renal uptake within the ROI to simultaneously monitored arterial 99mTc-DTPA concentration. The automatically selected ROI resulted in renal uptake curves that better matched arterial clearance than either systematically larger and smaller ROIs or a manually chosen ROI.
Hornof
W J
WJ
Department of Radiological Sciences, School of Veterinary Medicine, University of California, Davis 95616.
Cowgill
L D
LD
Conrad
G R
GR
Fisher
P
P
D000465:Algorithms; D000818:Animals; D004285:Dogs; D005919:Glomerular Filtration Rate; D009942:Organometallic Compounds; D004369:Pentetic Acid; D011866:Radioisotope Renography / Q000379:methods*; D016284:Technetium Tc 99m Pentetate
D009942:Organometallic Compounds; D004369:Pentetic Acid; D016284:Technetium Tc 99m Pentetate