| Summary: | The number of renal cases diseases was increasing during this two decades, meanwhile the number of Renograph provided for renal function studying available in the hospitals is still limited. After the economic crisis stroke Indonesia since the year 1997, imported of equipments from abroad is obstacle by the costly of their price In order to provide the necessity of medical diagnostic instruments in hospital, BATAN developed some Renograph prototypes using nuclear technology since 1983. Five generation of prototypes have been developed and constructed since the first generation of without computer system to the fifth of with computer system operated on Windows 95/98 and 98/2000. The fourth generation identified as BI-750/1 common type is designed to serve as a basis for the perfection of the renograph for mass production and the fifth generation was recognized as add-on card (AOC) Renograph, operated on Windows 98/2000. The latest generation of renograph was developed by following the technical information given throughout the IAEA Technical Documentation, especially on analog circuitry and the interface to PC.
Eight unit of common type have been installed and used successfully in 8 hospitals since1987, and then 2 unit of the AOC type have been installed in two hospitals since 2001. Design and construction of these prototypes have applied the engineering rule concerning the procedures and quality assurance.
Petformance and clinical testing to the prototype of AOC renograph showed that it passed all tests satisfactorily. Clinical test was carried out by the medical doctors. The performance tests showed that count accuracy of counter was 0,03% , the time error was 0,025%. Integral and differential non-linearity were satisfactory, count rate non linearity for 0.5Kcps to 2Kcps was vary from 2% to -1%. Chi-square test results to observe the statistical counting feasibility showed the X! for the prototype and the Canberra NIM that parallelized connected are between 4.54 to 13.16 and 5.48 to 11.44 respectively, for the count-rate front 250 to 6700 cps. Both were within the limits as stated in the IAEA Tecdoc 602, that is between 3.325 to 16.919 for 0.95 the confidence level. The AOC can also provide for refurbishing of aged renograph instruments in the hospitals.
Keywords : renograph prototype , development technology, nuclear medicine instrument
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