Establishment of multi-slice computed tomography (MSCT) reference level in Johor, Malaysia

M. K A Karim, S. Hashim, K. A. Bakar, H. Muhammad, Akmal Sabarudin, W. C. Ang, N. A. Bahruddin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Radiation doses from computed tomography (CT) are the highest and most hazardous compared to other imaging modalities. This study aimed to evaluate radiation dose in Johor, Malaysia to patients during computed tomography examinations of the brain, chest and abdomen and to establish the local diagnostic reference levels (DRLs) as are present with the current, state- of-art, multi-slice CT scanners. Survey forms were sent to five centres performing CT to obtain data regarding acquisition parameters as well as the dose information from CT consoles. CT- EXPO (Version 2.3.1, Germany) was used to validate the dose information. The proposed DRLs were indicated by rounding the third quartiles of whole dose distributions where mean values of CTDIw (mGy), CTDIvol (mGy) and DLP (mGy.cm) were comparable with other reference levels; 63, 63, and 1015 respectively for CT Brain; 15, 14, and 450 respectively for CT thorax and 16, 17, and 590 respectively for CT abdomen. The study revealed that the CT practice and dose output were revolutionised, and must keep up with the pace of introductory technology. We suggest that CTDIvol should be included in current national DRLs, as modern CTs are configured with a higher number of detectors and are independent of pitch factors.

Original languageEnglish
Article number012033
JournalJournal of Physics: Conference Series
Volume694
Issue number1
DOIs
Publication statusPublished - 24 Mar 2016

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Malaysia
tomography
dosage
abdomen
brain
quartiles
consoles
thorax
chest
radiation
Germany
scanners
data acquisition
examination

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Establishment of multi-slice computed tomography (MSCT) reference level in Johor, Malaysia. / Karim, M. K A; Hashim, S.; Bakar, K. A.; Muhammad, H.; Sabarudin, Akmal; Ang, W. C.; Bahruddin, N. A.

In: Journal of Physics: Conference Series, Vol. 694, No. 1, 012033, 24.03.2016.

Research output: Contribution to journalArticle

Karim, M. K A ; Hashim, S. ; Bakar, K. A. ; Muhammad, H. ; Sabarudin, Akmal ; Ang, W. C. ; Bahruddin, N. A. / Establishment of multi-slice computed tomography (MSCT) reference level in Johor, Malaysia. In: Journal of Physics: Conference Series. 2016 ; Vol. 694, No. 1.
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