ESTIMATION of PATIENT LENS DOSE ASSOCIATED with C-ARM CONE-BEAM COMPUTED TOMOGRAPHY USAGE during INTERVENTIONAL NEURORADIOLOGY

Satoru Kawauchi; Koichi Chida; Takashi Moritake; Yuji Matsumaru; Yusuke Hamada; Hideyuki Sakuma; Shogo Yoda; Lue Sun; Masayuki Sato; Wataro Tsuruta

doi:10.1093/rpd/ncy188

ESTIMATION of PATIENT LENS DOSE ASSOCIATED with C-ARM CONE-BEAM COMPUTED TOMOGRAPHY USAGE during INTERVENTIONAL NEURORADIOLOGY

Satoru Kawauchi, Koichi Chida, Takashi Moritake, Yuji Matsumaru, Yusuke Hamada, Hideyuki Sakuma, Shogo Yoda, Lue Sun, Masayuki Sato, Wataro Tsuruta

IRIDeS - Disaster Medical Science Division

Research output: Contribution to journal › Article › peer-review

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Abstract

The purpose of this study was to investigate the dose distribution and lens doses associated with C-arm cone-beam computed tomography (CBCT), using a head phantom, and to estimate the contribution ratio of C-arm CBCT to each patient's lens dose during interventional neuroradiology ('lens dose ratio') in 109 clinical cases. In the phantom study, the peak skin doses and respective right and left lens doses of C-arm CBCT were as follows: 63.0 ± 1.9 mGy, 19.7 ± 1.4 mGy and 21.9 ± 0.8 mGy in whole brain C-arm CBCT and 39.2 ± 1.4 mGy, 4.7 ± 0.9 mGy and 3.6 ± 0.3 mGy in high-resolution C-arm CBCT. In the clinical study, the lens dose ratios were 25.4 ± 8.7% in the right lens and 19.1 ± 9.8% in the left lens. This study shows that, on average, ~25% of patients' total lens dose was contributed by C-arm CBCT.

Original language	English
Pages (from-to)	138-147
Number of pages	10
Journal	Radiation Protection Dosimetry
Volume	184
Issue number	2
DOIs	https://doi.org/10.1093/rpd/ncy188
Publication status	Published - 2019 Aug 1

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title = "ESTIMATION of PATIENT LENS DOSE ASSOCIATED with C-ARM CONE-BEAM COMPUTED TOMOGRAPHY USAGE during INTERVENTIONAL NEURORADIOLOGY",

abstract = "The purpose of this study was to investigate the dose distribution and lens doses associated with C-arm cone-beam computed tomography (CBCT), using a head phantom, and to estimate the contribution ratio of C-arm CBCT to each patient's lens dose during interventional neuroradiology ('lens dose ratio') in 109 clinical cases. In the phantom study, the peak skin doses and respective right and left lens doses of C-arm CBCT were as follows: 63.0 ± 1.9 mGy, 19.7 ± 1.4 mGy and 21.9 ± 0.8 mGy in whole brain C-arm CBCT and 39.2 ± 1.4 mGy, 4.7 ± 0.9 mGy and 3.6 ± 0.3 mGy in high-resolution C-arm CBCT. In the clinical study, the lens dose ratios were 25.4 ± 8.7% in the right lens and 19.1 ± 9.8% in the left lens. This study shows that, on average, ~25% of patients' total lens dose was contributed by C-arm CBCT.",

author = "Satoru Kawauchi and Koichi Chida and Takashi Moritake and Yuji Matsumaru and Yusuke Hamada and Hideyuki Sakuma and Shogo Yoda and Lue Sun and Masayuki Sato and Wataro Tsuruta",

year = "2019",

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doi = "10.1093/rpd/ncy188",

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AU - Kawauchi, Satoru

AU - Chida, Koichi

AU - Moritake, Takashi

AU - Matsumaru, Yuji

AU - Hamada, Yusuke

AU - Sakuma, Hideyuki

AU - Yoda, Shogo

AU - Sun, Lue

AU - Sato, Masayuki

AU - Tsuruta, Wataro

PY - 2019/8/1

Y1 - 2019/8/1

N2 - The purpose of this study was to investigate the dose distribution and lens doses associated with C-arm cone-beam computed tomography (CBCT), using a head phantom, and to estimate the contribution ratio of C-arm CBCT to each patient's lens dose during interventional neuroradiology ('lens dose ratio') in 109 clinical cases. In the phantom study, the peak skin doses and respective right and left lens doses of C-arm CBCT were as follows: 63.0 ± 1.9 mGy, 19.7 ± 1.4 mGy and 21.9 ± 0.8 mGy in whole brain C-arm CBCT and 39.2 ± 1.4 mGy, 4.7 ± 0.9 mGy and 3.6 ± 0.3 mGy in high-resolution C-arm CBCT. In the clinical study, the lens dose ratios were 25.4 ± 8.7% in the right lens and 19.1 ± 9.8% in the left lens. This study shows that, on average, ~25% of patients' total lens dose was contributed by C-arm CBCT.

AB - The purpose of this study was to investigate the dose distribution and lens doses associated with C-arm cone-beam computed tomography (CBCT), using a head phantom, and to estimate the contribution ratio of C-arm CBCT to each patient's lens dose during interventional neuroradiology ('lens dose ratio') in 109 clinical cases. In the phantom study, the peak skin doses and respective right and left lens doses of C-arm CBCT were as follows: 63.0 ± 1.9 mGy, 19.7 ± 1.4 mGy and 21.9 ± 0.8 mGy in whole brain C-arm CBCT and 39.2 ± 1.4 mGy, 4.7 ± 0.9 mGy and 3.6 ± 0.3 mGy in high-resolution C-arm CBCT. In the clinical study, the lens dose ratios were 25.4 ± 8.7% in the right lens and 19.1 ± 9.8% in the left lens. This study shows that, on average, ~25% of patients' total lens dose was contributed by C-arm CBCT.

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ESTIMATION of PATIENT LENS DOSE ASSOCIATED with C-ARM CONE-BEAM COMPUTED TOMOGRAPHY USAGE during INTERVENTIONAL NEURORADIOLOGY

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