التفاصيل البيبلوغرافية
| العنوان: |
OPTIMIZATION OF RADIATION PROTECTION THROUGH QUALITY ASSURANCE IN SOME RADIO-DIAGNOSTIC FACILITIES IN KATSINA STATE, NIGERIA. |
| المؤلفون: |
Dimas, Joseph1 joeydimas@yahoo.com, I. G. E., Ibeanu2, I. Y., Zakari3, Z., Joseph Dlama4, Mustapha, Ndawashi5, Mikhail, Olakunle6 |
| المصدر: |
Pakistan Journal of Radiology. Oct-Dec2017, Vol. 27 Issue 4, p323-331. 9p. |
| مصطلحات موضوعية: |
*RADIATION protection, *RADIOSCOPIC diagnosis, *X-ray imaging, *QUALITY assurance |
| مصطلحات جغرافية: |
KATSINA (Nigeria) |
| مستخلص: |
BACKGROUND: This study was motivated by the high incidence of cancer and the rapid growth of the radiodiagnostic industry in the Nigeria and globally. OBJECTIVES: To investigate the errors during quality control tests conducted on three x-ray units. METHODS: kVp accuracy: exposures were made on the RMI multifunction meter Model 240 starting from 50 kVp with increments of 10 kVp. kVp reproducibility: five exposures were also made at 70 kVp and 20 mAs. Filtration check: three exposures were made on a universal survey meter (RADOS RDS 120) with different aluminium thickness placed on it. mAs / exposure timer linearity: three exposures were made on the universal survey meter at 70 kVp for each mAs selected. mAs / exposure timer reciprocity: three exposures were made on the universal survey meter at 80 kVp with three different combinations of mA and exposure time to yield 20 mAs. Radiation out-put reproducibility: five exposures were made on the universal survey meter using constant exposure factors. Beam alignment: exposure was made on an 18 x 24 cm x-ray film with four coins placed on either edge of the light field to make contact with each other. Radiation leakage: with the shutters tightly closed, the universal survey meter placed at 100cm from the x-ray tube was exposed at 125 kVp and 250 mAs. RESULTS: Shimadzu and DM-105N x-ray units failed kVp accuracy test with 05.06% and -8.58% error respectively. Also, the Siemens failed the mAs reciprocity with 0.36% error. However, the three x-ray machines passed the other remaining QC tests. CONCLUSIONS: The results obtained demonstrated an acceptabl condition for all the x-ray machines. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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