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Evaluation of Dose to Patients Undergoing Head, Chest, and Abdomen Computed Tomography Scan Examinations at Specialist Hospital, Bauchi, Bauchi State, Nigeria. |
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PP: 171-176 |
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doi:10.18576/jrna/110206
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Author(s) |
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B. Abdulaziz,
I. Umar,
M. M. Idris,
A. A. Jibril,
M. A. Sidi,
A. T. Shehu,
A. Tasiu,
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Abstract |
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| X-rays are used to make images in the developing imaging technique known as computed tomography (CT), which is frequently employed in radiology practice to diagnose and monitor a variety of medical disorders. In this study, the dose to patients undergoing head, chest, and abdomen computed tomography scan examination at Specialist Hospital, Bauchi, Bauchi State, Nigeria was evaluated. The study used a quantitative and prospective approach to figure out how much radiation will be absorbed by patients getting an abdomen, chest, and head CT examination. A total of thirty patients (ten each) who underwent either head, chest, or abdomen scans were recruited for this study. The demographic details (age, gender, and weight), scan parameter (kVp, mAs, Pitch, scan length, thickness, and CTDIw), and measured calculated dose parameters (MSAD, CTDIv, DLP, and Effective dose) were determined. The mean CTDIv, DLP, Effective dose, and MSAD are (81.76 mGy, 81.76 mGy, and 29.18mGy), (1326.03mGy.cm, 1417.47mGy.cm, and 1417.47mGy.cm), (3.05 mSv, 21.26 mSv, and 21.26 mSv), and (3.05 mGy, 4.34 mGy, and 9.67 mGy), for head, chest, and abdomen scan examination, respectively. The 75th percentile, which is the local Diagnostic Reference Level (DRL) for CTDIv and DLP, is (112.4386mGy and 1451.63 mGy.cm), (37.84034mGy and 2008.08 mGy.cm), and (37.84034mGy and 2008.08 mGy.cm), for head, chest, and abdomen, respectively. These values are found to be within the ICRP reference level for CTDIv and DLP of (60 mGy and 1050 mGy.cm), (30 mGy and 650 mGy.cm), and (35 mGy and 780 mGy.cm), for head, chest, and abdomen, respectively. The CT scanner at the Specialist Hospital, Bauchi, investigated in this study was found to be operating slightly above the ICRP 75th percentile value for CTDIvol and DLP. Effective dose and Multiple scan average are found to be within the acceptable level. The mean value of CTDIv and DLP for all the patients that underwent CT examination for Head, Chest, and Abdomen is found to be within the ICRP reference level. This implies that the CT examination taking place at the center is in accordance with the ALARA principle; however, regular monitoring is required. |
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