title: A comparative study of adult patient doses in film screen and computed radiography in some Sudanese hospitals.
abstract: A study was performed to compare adult patient doses in film screen (FS) and computed radiography (CR) diagnostic X-ray examinations in some hospitals in Sudan over a period of 1 y; during this period of time, the CR systems were introduced to replace FS systems. Radiation doses were estimated for 354 patients in five hospitals (two FS units and three CR units). Entrance surface air kerma (ESAK) was estimated from incident air kerma using patient exposure parameters and tube output. Dose calculations were performed using CALDOSE X 3.5 Monte Carlo-based software. In FS, third quartile of ESAK values for skull PA, skull LAT, chest PA, pelvis AP, lumbar spine AP and lumbar spine LAT were 1.5, 1.3, 0.3, 1.9, 2.8 and 5.9 mGy, respectively, while in CR, third quartile of ESAK values for the same examinations were 2.7, 1.7, 0.18, 1.7, 3.2 and 10.8 mGy, respectively. Comparable ESAK values were presented in FS and CR units. The results are important for future dose optimisation and setting national diagnostic reference levels.
authors.affiliation: Radiation Safety Institute, Sudan Atomic Energy Commission, PO Box 3001, Khartoum, Sudan hussaien128@hotmail.com.
authors.forename: E
authors.initials: E
authors.lastname: Elshiekh
authors.affiliation: Radiation Safety Institute, Sudan Atomic Energy Commission, PO Box 3001, Khartoum, Sudan Department of Radiology and Molecular Imaging, Medical Physics Section; College of Medicine and Health Sciences, Sultan Qaboos University, Postcode 123, PO Box 35, Al-Khod, Oman.
authors.forename: I I
authors.initials: II
authors.lastname: Suliman
authors.affiliation: Department Department of Physics, Faculty of Science, University of Khartoum, PO Box 321, Khartoum, Sudan.
authors.forename: F
authors.initials: F
authors.lastname: Habbani
mesh_terms: D000328:Adult; D000368:Aged; D000388:Air; D049628:Body Size; D005260:Female; D005373:Film Dosimetry / Q000295:instrumentation* / Q000379:methods; D006761:Hospitals; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D009010:Monte Carlo Method; D010388:Pelvis / Q000000981:diagnostic imaging; D011829:Radiation Dosage; D011835:Radiation Protection; D011856:Radiographic Image Enhancement / Q000295:instrumentation* / Q000379:methods; D013902:Radiography, Thoracic; D012016:Reference Values; D015203:Reproducibility of Results; D012886:Skull / Q000000981:diagnostic imaging; D012984:Software; D013397:Sudan; D011795:Surveys and Questionnaires