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- Title
ENTRANCE SURFACE DOSE AND IMAGE QUALITY: COMPARISON OF ADULT CHEST AND ABDOMINAL X-RAY EXAMINATIONS IN GENERAL PRACTITIONER CLINICS, PUBLIC AND PRIVATE HOSPITALS IN MALAYSIA.
- Authors
Hanibali, Ahrnad Shariff; Ng, Kwan-Hoong; Abdullah, Basri Johan Jeet; Wang, Hwee-Beng; Jamal, Noriah; Spelic, David C.; SuIeiinan, Orhan H.
- Abstract
This study was undertaken to compare the entrance surface dose (ESD) and image quality of adult chest and abdominal X-ray examinations conducted at general practitioner (GP) clinics, and public and private hospitals in Malaysia. The surveyed facilities were randomly selected within a given category (28 GP clinics, 20 public hospitals and 15 private hospitals). Only departmental X-ray units were involved in the survey Chest examinations were done at all facilities, while only hospitals per- formed abdominal examinations. This study used the x-ray attenuation phantoms and protocols developed for the Nationwide Evaluation of X-rat' Trends (NEXT) survey program in the United States. The ESD was calculated from measurements of exposure and clinical geometry An image quality test tool was used to evaluate the low-contrast detectability and high-contrast detail performance under typical clinical conditions. The median ESD value for the adult chest X-ray examination was the highest (0.25 mGy) at GP clinics, followed by private hospitals (0.22 mGy) and public hospitals (0.17 mGy). The median ESD for the adult abdominal X-ray examination at public hospitals (3.35 mGy) was higher than that for private hospitals (2.81 mGy). Results of image quality assessment for the chest X-ray examination show that all facility types have a similar median spatial resolution and low-contrast detectability. For the abdominal X-ray examination, public hospitals have a similar median spatial resolution but larger low-contrast detectability compared with private hospitals. The results of this survey clearly show that there is room for further improvement in performing chest and abdominal X-ray examinations in Malaysia.
- Subjects
MALAYSIA; RADIATION doses; IMAGE quality in medical radiography; CHEST examination; ABDOMINAL examination; X-rays; CLINICS; HOSPITALS
- Publication
Radiation Protection Dosimetry, 2009, Vol 133, Issue 1, p25
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/ncp007