Utility of lower tube voltage scans in reducing exposure of healthcare workers within computed tomography room to scattered radiation-Reference-Cited by-同舟云学术

Utility of lower tube voltage scans in reducing exposure of healthcare workers within computed tomography room to scattered radiation

Published:2023-08-29 Issue:19 Volume:199 Page:2338-2343
ISSN:0144-8420
Container-title:Radiation Protection Dosimetry
language:en
Short-container-title:

Author:

Arao Shinichi¹²^ORCID,Masuda Takanori¹²^ORCID,Oku Takayuki³^ORCID,Ono Atsushi¹²,Okura Yasuhiko⁴⁵

Affiliation:

1. Department of Radiological Technology , Faculty of Health Science and Technology, , 288 Matsushima, Kurashiki, Okayama 701-0193 , Japan

2. Kawasaki University of Medical Welfare , Faculty of Health Science and Technology, , 288 Matsushima, Kurashiki, Okayama 701-0193 , Japan

3. Department of Diagnostic Radiology, Tsuchiya General Hospital , Nakajima-cho 3-30, Naka-ku, Hiroshima, Hiroshima 730-8655 , Japan

4. Department of Clinical Radiology , Faculty of Health Sciences, , 555-36 Kurosegakuendai, Higashihiroshima, Hiroshima 739-2695 , Japan

5. Hiroshima International University , Faculty of Health Sciences, , 555-36 Kurosegakuendai, Higashihiroshima, Hiroshima 739-2695 , Japan

Abstract

Abstract The aim of this study was to estimate the effect of tube voltage on the scattered dose in a computed tomography (CT) room. To this end, we conducted experiments using anthropomorphic phantoms and a CT scanner at different tube voltages during CT. The scattered dose was measured using an electronic pocket dosemeter at 50-cm intervals from the centre of the gantry. The structure of the CT room was measured at 57 points (28 points in the front of the gantry (on the bed side), 6 points on the side of the gantry and 23 points behind the gantry) to be up to 200 cm. We compared the scattered dose distributions between 80 and 120 kVp at heights of 50, 100 and 150 cm above the floor surface. The scattered dose was reduced by ~30% when the tube voltage was reduced from 120 to 80 kVp.

Publisher

Oxford University Press (OUP)

Subject

Public Health, Environmental and Occupational Health,Radiology, Nuclear Medicine and imaging,General Medicine,Radiation,Radiological and Ultrasound Technology

Link

https://academic.oup.com/rpd/article-pdf/199/19/2338/53456662/ncad240.pdf

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