Head CT Dose Examination for Adult Patient in Abuja and Keffi, Hospitals in Nigerian

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U. Rilwan
G. C. Onuchukwu
H. A. Abdullahi
I. Umar
L.K. Sabiu


This study has established local diagnostic reference levels (LDRLs). Dose report and scan parameters for the head was assessed during seven months at the three study centres. Data on CT Dose index (CTDIw) and dose length product (DLP) available and achieved on CT scanner control console was recorded for a minimum of 10 average-sized patients for each facility to establish a local Diagnostic reference level (LDRLs) and radiation dose optimization Data was collected using a purposive sampling technique, from 131 adult patients weighing 70±3kg) from Philip brilliance, Toshiba Alexion and General Electric (GE) CT scanners for this study. The collected data were analyzed using SPPSS version (20) statistical software. Third quartile values of the estimated LDRLs for CTDIw and DLP was determined as 49.8 mGy and 9639 mGy. The mean CTDIw obtained are lower to the reported data from the European Commission of 60mGy. The mean DLP are comparably lower than all the reported value from the European commission of 1050 mGy. Therefore, CT dose optimization is recommended.

Radiation dose, MSCT, VGA, CTDIv, CTDIw, DLP, LDRL

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How to Cite
Rilwan, U., Onuchukwu, G. C., Abdullahi, H. A., Umar, I., & Sabiu, L. (2020). Head CT Dose Examination for Adult Patient in Abuja and Keffi, Hospitals in Nigerian. Asian Journal of Advanced Research and Reports, 9(1), 8-13. https://doi.org/10.9734/ajarr/2020/v9i130209
Original Research Article


Galloway RL Jr. Introduction and historical perspectives on image-guided surgery. In Golby, AJ (ed.). Image-Guided Neuro-surgery. Amsterdam: Elsevier. 2015;3– 4.

Tse VCK., Kalani MYS, Adler JR. Techniques of stereotactic localization. In China, LS; Regine, WF (eds.). Principles and Practice of Stereotactic Radiosurgery. New York: Springer. 2015;28-29.

Saleh H, Kassas B. Developing stereotactic frames for cranial treatment. In benedict, SH; Schlesinger, DJ; Goetsch, SJ; Kavanagh, BD (eds.). Stereotactic radiosurgery and stereotactic body radiation therapy. Boca Raton: CRC Press. 2015;156–159.

Khan FR, Henderson JM. Deep Brain stimulation surgical techniques. In Lozano, AM; Hallet, M (eds.). Brain stimulation: Handbook of clinical neurology. 116. Amsterdam: Elsevier. 2013;28–30.

Arle J. Development of a classic. The todd-wells apparatus, the BRW and the CRW stereotactic frames. In Lozano, AM; Gildenberg, PL; Tasker, RR (eds.). Textbook of Stereotactic and Functional Neurosurgery. Berlin: Springer-Verlag. 2009;456–461.

Brown RA, Nelson JA. Invention of the N-localizer for stereotactic neurosurgery and its use in the Brown-Roberts-Wells stereotactic frame. Neurosurgery. 2012; 70(Supplement 2):173–176.

Furlow B. Radiation dose in computed tomography. Radiologic Technology. 2010; 437–50.

EC. Guidelines on quality criteria for diagnostic radiographic images. European Commission EUR 16261EN.
(Accessed 2009 from)

Shrimpton PC, Miller HC, Lewis MA, Dunn M. Doses from Computed Tomography (CT) examinations in the UK – 2003 Review Archived 2011-09-22 at the Wayback Machine; 2005.

Morin RL, Gerber TE, McCollough CH. Radiation dose in computed tomography of the heart. Circulation. 2003;917-922.

Karthikeyan D, Chegu D. Step by step CT scan (A practical guide for Residents and Technologist). New Delhi, India: Jaypee Brothers Medical Publisher. 2005;32-33.

Seeram C. Physical principles, clinical applications and quality control. 3rd Ed. Westline Industrial Drive St. Louis, Missouri: Sounders Elsevier. 2009;5-6.

Ling P. Factors affecting image quality and radiation dose in MDCT.

(Accessed 2009)


Huda W, Magill D, He W. (CT effective dose per dose length product using ICRP 103 weighting factors. Medical physics. 2011;38(3):1261-1265.

Ngaram SM, Mohammed IB. Study of radiation doses in adult and paediatric patients undergoing computed tomography examination in Nigeria. Advances in Computed Tomography. 2019;8(03):37.

Garba I, Abdullahi AR, Yahuza MA, Suwaid MA, Lawal Y. The estimation of effective radiation dose following computed tomography urography at Aminu Kano Teaching Hospital, Kano Nigeria. Nigerian Journal of Basic and Clinical Sciences. 2019;16(1):1.