Estimating radiation exposure of the brain of a physician with a protective flap in interventional radiology: A phantom study.

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Tytuł:: Estimating radiation exposure of the brain of a physician with a protective flap in interventional radiology: A phantom study.
Autorzy:: Hattori S; Department of Medical Physics, Graduate School of Medical Sciences, Kindai University, Osakasayama, Osaka, Japan.; Department of Radiological Center, Kindai University Hospital, Osakasayama, Osaka, Japan.
Monzen H; Department of Medical Physics, Graduate School of Medical Sciences, Kindai University, Osakasayama, Osaka, Japan.
Tamura M; Department of Medical Physics, Graduate School of Medical Sciences, Kindai University, Osakasayama, Osaka, Japan.
Kosaka H; Department of Medical Physics, Graduate School of Medical Sciences, Kindai University, Osakasayama, Osaka, Japan.; Department of Radiological Center, Kindai University Hospital, Osakasayama, Osaka, Japan.
Nakamura Y; Department of Medical Physics, Graduate School of Medical Sciences, Kindai University, Osakasayama, Osaka, Japan.
Nishimura Y; Department of Radiation Oncology, Faculty of Medicine, Kindai University, Osakasayama, Osaka, Japan.
Źródło:: Journal of applied clinical medical physics [J Appl Clin Med Phys] 2022 Mar; Vol. 23 (3), pp. e13532. Date of Electronic Publication: 2022 Jan 19.
Typ publikacji:: Journal Article
Język:: English
Imprint Name(s):: Publication: 2017- : Malden, MA : Wiley on behalf of American Association of Physicists in Medicine
Original Publication: Reston, VA : American College of Medical Physics, c2000-
MeSH Terms:: Occupational Exposure*/analysis
Occupational Exposure*/prevention & control
Phantoms, Imaging*
Physicians*
Radiation Exposure*/prevention & control
Radiation Protection*
Brain/diagnostic imaging ; Brain/surgery ; Fluoroscopy ; Humans ; Radiation Dosage ; Radiology, Interventional
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Contributed Indexing:: Keywords: brain exposure; interventional radiology; occupational exposure; protective flap; radiation protection
Entry Date(s):: Date Created: 20220119 Date Completed: 20220311 Latest Revision: 20220531
Update Code:: 20240105
PubMed Central ID:: PMC8906205
DOI:: 10.1002/acm2.13532
PMID:: 35045212
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Purpose: The efficiency of protective equipment for the brain has not been verified at the left anterior oblique (LAO) position, which is commonly used in clinical procedures. The purpose of this study was to investigate radiation exposure of the brain in interventional radiology (IR) and the shielding ability of a new protective flap.
Methods: We made a flap that combined a protective cap with a left lateral face shield. The flap was made of tungsten-containing rubber (TCR). An anthropomorphic head phantom was placed at the physician's position, and air kerma rates (μGy/min and μGy/15s) were measured by electronic dosimeter at three locations: the surface of the left side of the head, and the left and right temporal lobes with the protective cap and the flap in fluoroscopy and cine modes. The X-ray tube was at the lower left side of the physician, and its angles were LAO60 and LAO60CAU40. The tube voltage (95-125 kV), tube current (4.7-732 mA), and air kerma rate (27.8-1078 mGy/min) were automatically adjusted by the X-ray system. We obtained the cap and the flap shielding efficiencies.
Results: In cine mode at LAO60CAU40, the shielding efficiencies on the surface of the left side of the head and left temporal lobe with the cap were 92.6% and 5.1%, respectively, and the corresponding shielding efficiencies with the flap were 92.5% and 86.1%, respectively. The flap can reduce radiation exposure of the brain more than the cap alone.
Conclusions: At the left anterior oblique in interventional radiology, the flap can reduce exposure to the brain.
(© 2022 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, LLC on behalf of The American Association of Physicists in Medicine.)

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