Decon va
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This document describes an indigenous software created by Indian students to analyze renal parenchymal transit time from renographic curves using deconvolution analysis. It discusses the methodology using MATLAB, the analytical steps involved in the software, and presents results from 130 patient cases. The software provides concise renal transit time measurements but has some limitations including multiple steps, operator dependence, and difficulty reproducing results.
Decon va
- 2. DECONVOLUTION ANALYSIS OF RENOGRAPHIC CURVES AND TRANSIT TIME ASSESSMENT Dr V Sivasubramaniyan Dept. of Nuclear Medicine SSSIHMS * Dr G Venkataraman Mr Hari Nanda Kumar SSSIHL *
- 3. AIMS REPORT INDIGENOUS SOFTWARE CREATED BY OUR OWN STUDENTS Renal Parenchymal Transit Time Analysis UTILITY & CLINICAL SIGNIFICANCE
- 4. DECONVOLUTION ANALYSIS OF RENOGRAM. Kenny et al BMJ 1975. Diffey et al JNM 1976. Piepsy et al BJR 1982. Lupton et al NMC 1984 Britton et al BJU 1987.
- 5. CONVOLUTION & DECONVOLUTION f (x) = A* exp (-a1*x) + B* exp (-a2*x) g (x) = 500./1 + exp {(x-xg) / x01} Convolution = Viewing g(x) via the lens f(x) or vice versa. Deconvolution = Deriving g(x) from known h(x) and f(x).
- 6. METHODOLOGY Platform : MATLAB Ver 5.0 Simulation studies. Deconvolution with discrete data sets. Randomness checking. Smoothing procedures. Check out analysis from literature.
- 12. ANALYTICAL STEPS Greaderauto Enter the file name of the curve H: 55470_k2 20021209 savescreen.2.jpg Enter the name of the patient Anushree sahoo
- 29. RESULTS OBSTRUCTIVE 70 8 to 15 min NON-OBSTRUCTIVE 60 1.8 to 2.8 min TOTAL CASES 130
- 30. MERITS INDIGENOUSLY MADE BASED ON NATIVE PATIENT DATA WORKS ON P. C PLATFORM EASY & EFFECTIVE
- 31. DEMERITS MULTIPLE STEPS INVOLVED OPERATOR DEPENDANT REPRODUCIBILITY DIFFICULT REQUIRES PATIENCE & TRAINING