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Survey of dose area product received by patients undergoing common radiological examinations in four centers in Nigeria
- Source :
- Journal of Applied Clinical Medical Physics
- Publication Year :
- 2011
-
Abstract
- Patient dosimetry studies in diagnostic radiology in Nigeria have been on measurement of entrance skin dose and effective dose. Another important and easy to measure radiation dose descriptor that could be used to assess patient dose in radiological procedures is dose area product (DAP). Knowledge of DAP with location and projection of X‐ray beam allows direct calculation of organ dose and effective dose. In this study, DAP for commonly performed radiological examinations (abdomen, chest, lumbo sacral joint, pelvis, paranasal sinus, and skull) in four diagnostic centers in Nigeria were determined. These centers comprise of three classes of health care center namely tertiary, private, and specialist hospitals. Mathematical method was used to determine DAP received by 336 patients undergoing radiological examinations at the selected diagnostic centers. The DAP received by patient from each radiological examination varies from center to center. The range factor (RF) of DAP for individual patients ranged from 1.55–4.56, while RF of DAP among the selected centers was 2.27–55.84. The highest RF of DAP (55.84) was obtained from X‐ray examination of the chest. This variation was due to the application of anti‐scatter grid, and high kVp and high mAs values for chest examination by only one of the centers. The very wide variation in DAP found among diagnostic centers in this survey showed that there is need to harmonize radiological techniques of common X‐ray examination among different diagnostic centers. This would ensure optimal protection of patient against excessive radiation dose. PACS numbers: 87.53.Bn; 87.59.B
- Subjects :
- Male
medicine.medical_specialty
Nigeria
Radiation Dosage
Effective dose (radiation)
Pelvis
Radiation Protection
Medicine
Humans
exposure factors
Radiology, Nuclear Medicine and imaging
Radiometry
Instrumentation
anti‐scatter grid
Radiation
dose area product (DAP)
business.industry
Skull
Radiological examination
Radiation Measurements
Radiography
medicine.anatomical_structure
radiological examination
Dose area product
Patient dosimetry
Radiological weapon
Abdomen
Female
Radiology
Radiation protection
business
Nuclear medicine
Subjects
Details
- ISSN :
- 15269914
- Volume :
- 13
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Journal of applied clinical medical physics
- Accession number :
- edsair.doi.dedup.....fc43e210996fae246f490b272c7ca492