BENCHMARKING OF A NEW AUTOMATIC CT RADIATION DOSE CALCULATOR-Reference-Cited by-同舟云学术

BENCHMARKING OF A NEW AUTOMATIC CT RADIATION DOSE CALCULATOR

Published:2020-09 Issue:3 Volume:191 Page:361-368
ISSN:0144-8420
Container-title:Radiation Protection Dosimetry
language:en
Short-container-title:

Author:

Akyea-Larbi Kofi Okyere¹²,Tetteh Mercy Afadzi²³,Martinsen Anne Catrine T³⁴,Hasford Francis¹⁵,Inkoom Stephen¹⁶,Jensen Kristin³

Affiliation:

1. Department of Medical Physics, School of Nuclear and Allied Sciences, University of Ghana, LG 25 Legon, Accra, Ghana

2. Department of Physics, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway

3. Department of Diagnostic Physics, Oslo University Hospital, 0424 Oslo, Norway

4. Faculty of Health sciences, Oslo Metropolitan University, N-0130 Oslo, Norway

5. Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission, LG 80 Legon, Accra, Ghana

6. Radiation Protection Institute, Ghana Atomic Energy Commission, LG 80 Legon, Accra, Ghana

Abstract

Abstract Information on patient radiation dose is essential to meet the radiation protection regulations and the demands of dose optimization. Vendors have developed different tools for patient dose assessment for radiological purposes. In this study, estimated effective doses derived from a new image-based software tool (DoseWatch, GE Healthcare) was benchmarked against the corresponding doses from a dose calculator (CT-Expo, SASCRAD) and a conversion coefficient method. Dose data from 150 adult patients (66 male and 84 female), who underwent CT head, abdominopelvic or chest examinations, were retrospectively collected using DoseWatch. Effective dose estimated by DoseWatch was significantly lower than that of CT-Expo and DLP-E (k) (p ≤ 0.001). For the organ doses, DoseWatch resulted in lower dose than CT-Expo for all the organs with the exception of testis (p ≤ 001) and eye lenses (p ≤ 0.026).

Funder

NORPART Programme

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

http://academic.oup.com/rpd/article-pdf/191/3/361/34694266/ncaa167.pdf

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