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Hambali, A. S. and Ng, K. H. and Abdullah, B. J. J. and Wang, H. B. and Jamal, N. and Spelic, D. C. and Suleiman, O. H. (2009) 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. Radiation Protection Dosimetry, 133 (1). pp. 25-34. ISSN 0144-8420

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    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 performed abdominal examinations. This study used the x-ray attenuation phantoms and protocols developed for the Nationwide Evaluation of X-ray 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.

    Item Type: Article
    Additional Information: ISI Document Delivery No.: 410VM Times Cited: 0 Cited Reference Count: 23 Cited References: Gray JE, 2005, RADIOLOGY, V235, P354, DOI 10.1148/radiol.2352020016 HART D, 1996, R289 NRPB International Atomic Energy Agency, 1996, IAEA SAF SER IPEM, 2005, 91 IPEM Kaczmarek RV, 2000, RADIOLOGY, V215, P891 Mettler FA, 2008, RADIOLOGY, V248, P254, DOI 10.1148/radiol.2481071451 MUHOGORA WE, 2008, RADIAT PROT DOSIM, V190, P1453 National Radiation Protection Board, 1992, NAT PROT PAT DOS MEA Ng K H, 1999, Med J Malaysia, V54, P185 Ng KH, 1998, BRIT J RADIOL, V71, P654 Ogundare FO, 2004, BRIT J RADIOL, V77, P934, DOI 10.1259/bjr/55841517 ORTIZ P, 1995, RADIAT PROT DOSIM, V57, P95 Ramli K, 2005, Australas Radiol, V49, P460, DOI 10.1111/j.1440-1673.2005.01497.x SAURE D, 1995, RADIAT PROT DOSIM, V57, P167 Spelic DC, 2004, RADIOLOGY, V232, P115, DOI 10.1148/radiol.2321020397 WarrenForward HM, 1996, BRIT J RADIOL, V69, P755 WARRENFORWARD HM, 1995, BRIT J RADIOL, V68, P1221 *AM COLL RAD, 2006, ACR TECHN STAND DIAG *C RAD CONTR PROGR, C RAD CONTR PROGR DI *C RAD CONTR PROGR, NEXT 2001 PROT SURV *C RAD CONTR PROGR, NEXT 2002 PROT SURV *C RAD CONTR PROGR, C RAD CONTR PROGR E, V52 *IAEA COMM EUR COM, 1995, IAEATECDOC796 CEC Hambali, Ahmad Shariff Ng, Kwan-Hoong Abdullah, Basri Johan Jeet Wang, Hwee-Beng Jamal, Noriah Spelic, David C. Suleiman, Orhan H. Oxford univ press Oxford
    Uncontrolled Keywords: diagnostic-radiology radiography reduction abdomen
    Subjects: Medicine and Dentistry
    Divisions: UNSPECIFIED
    Depositing User: Mr Ahmad Azwan Azman
    Date Deposited: 18 Oct 2012 02:43
    Last Modified: 18 Oct 2012 02:43
    URI: http://opendepot.org/id/eprint/1445

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