Author, Subjects, Keywords

Cited Author

 
 
   » By Author or Editor
 » Browse Author by Alphabet
 » By Journal
 » By Subjects
 » Malaysian Journals
 » By Type
 » By Year
 » By Latest Additions
 
 
   » By Author
 » Top 20 Authors
 » Top 20 Article
 » Top Journal Cited
 » Top Article Cited
 » Journal Citation Statistics
 » Usage Since Sept 2007


 
 
 

Login | Create Account

Radiographic viewing conditions at Johannesburg Hospital

Nyathi, T., and Mwale, A.N., and Segone, P., and Mhlanga, S.H., and Pule, M.J., (2008) Radiographic viewing conditions at Johannesburg Hospital. Biomedical Imaging and Intervention Journal, 4 (2). e7.

Full text not available from this repository.

Official URL: http://www.biij.org/2008/2/e17/

Affiliations

University of the Witwatersrand, Johannesburg, South Africa. School of Physics
University of the Witwatersrand, Johannesburg, South Africa. School of Physics
Johannesburg Hospital, Johannesburg, South Africa. Division of Medical Physics
Johannesburg Hospital, Johannesburg, South Africa. Division of Medical Physics
Johannesburg Hospital, Johannesburg, South Africa. Division of Medical Physics

Abstract

Purpose: To measure the luminance level of X-ray viewing boxes and ambient lighting levels in reporting rooms as a quality assurance procedure, and to compare the results with those recommended by the Directorate of Radiation Control, South Africa (DRC), European Commission (EC) and Nordic Radiation Protection Co-operation (NORDIC). Materials and Methods: All the viewing boxes housed at the Divisions of Radiation Oncology and Radiology of Johannesburg Hospital had their luminance levels measured using a calibrated photometer. In addition the room’s ambient light was measured using a photometer. Results: The mean average luminance was 1026.75 ± 548.65 cd m-2 and 3284.38 ± 327.91 cd m-2 at the Division of Radiology and Division of Radiation Oncology respectively. The Division of Radiation Oncology had an average viewing box uniformity of 7.14% compared to 27.32% at the Division of Radiology. The average ambient lighting was found to be 66.30 lux and 66.43 lux at the Division of Radiation Oncology and Division of Radiology respectively. Conclusion: The radiograph viewing conditions in Johannesburg variably comply with guidelines. This study underscores the need to implement quality control and quality assurance standards in radiographic image viewing.

Item Type:Journal
Keywords:Luminance, ambient lighting, quality assurance
Subjects:R Medicine, Dentistry, Pharmacy, Nursing
ID Code:2372

1. Dendy PP, Heaton B. Physics for diagnostic radiology. 2nd edition. Bristol and Philadelphia: Institute of Physics Publishing, 2002.

2. European Commission. European Guidelines on Quality Criteria for Diagnostic Radiographic Images. Brussels, Belgium, 1996; EUR 16260 EN.

3. Lau S., Ng K.H., Abdullah B.J.J. Viewing conditions in diagnostic imaging: A survey of selected Malaysian hospitals. J HK Coll Radiol 2001; 4:264-7.

4. National Institute of Radiation Hygiene. Report on Nordic radiation protection co-operation. A quality control programme for radiodiagnostic equipment: Acceptance tests. 1999; Report No. 7.

5. European Commission. Criteria for acceptability of radiological (including radiotherapy) and nuclear installations. Luxembourg: EC, 1997. (Radiation Protection; 91).

6. South African Department of Health. Directorate: Radiation Control: Inspection and verification scope for diagnostic X-ray imaging systems: Annexure A. Cape Town, 2007.

7. McCarthy E, Brennan PC. Viewing conditions for diagnostic images in three major Dublin hospitals: a comparison with WHO and CEC recommendations. Br J Radiol 2003; 76(902):94-7. [Medline]

8. Guibelalde E, Vano E, Llorca AL. Quality assurance of viewing boxes: proposal for establishing minimum requirements and results from a Spanish quality control programme. Br J Radiol 1990; 63(751):564-7. [Medline]

9. Alter AJ, Kargas GA, Kargas SA et al. The influence of ambient and viewbox light upon visual detection of low-contrast targets in a radiograph. Invest Radiol 1982; 17(4):402-6. [Medline]

10. Baxter B, Ravindra H, Normann RA. Changes in lesion detectability caused by light adaptation in retinal photoreceptors. Invest Radiol 1982; 17(4):394-401. [Medline]

11. Patel N, Rushton VE, Macfarlane TV et al. The influence of viewing conditions on radiological diagnosis of periapical inflammation. Br Dent J 2000; 189(1):40-2. [Medline]

12. Welander U, McDavid WD, Higgins NM et al. The effect of viewing conditions on the perceptibility of radiographic details. Oral Surg Oral Med Oral Pathol 1983; 56(6):651-4. [Medline]

Repository Staff Only: item control page
 
 
 
 
 
 
© Copyright 2007 MyAIS Faculty of Computer Science and Information Technology, University of Malaya – All Rights Reserved. Malaysian Abstracting and Indexing System is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.