Sentinel node navigation surgery with 99mTc-tin colloid in breast cancer: Radiation safety considerations

Kazutaka Ejiri, Kazuyuki Minami, Hiroshi Toyama, Gen Kudo, Hidekazu Hattori, Naomi Kobayashi, Masaki Kato, Masanobu Ishiguro, Hirofumi Fujii, Makoto Kuroda, Toshiaki Utsumi, Katsumi Iwase, Kazuhiro Katada

研究成果: Article

抄録

Purpose: The incident at the Fukushima Daiichi nuclear power station in 2011 has again raised concerns with the public regarding radiation exposure, especially so in medical workers and patients undergoing treatment involving the use of radiation. Radioisotopes are currently used during sentinel node navigation surgery (SNNS) in operating rooms without radiation monitoring. To re-evaluate the safety issues, the potential effective dose (E poten) from 99mTc-tin (-Sn) colloid in breast cancer surgery was estimated and personal dose equivalents, H p(10) and H p(0.07), were measured during SNNS. Materials and methods: Seventeen breast cancer patients were enrolled. One day before SNNS, 99mTc-Sn colloid was injected around the tumor and radiation exposure rates were measured using survey meters. Personal dose equivalents for the surgical workers were measured. H p(10) and H p(0.07) for the body and H p(0.07) for the hands were recorded using semiconductor detectors and ring-type glass dosimeters. Results: The maximum E poten was 29 μSv per 74 MBq injection. The maximum H p(10) for the primary and assisting surgeons, nurse, and anesthetist was 3.7, 1.4, 0.3 and 0.6 μSv per SNNS, respectively. The maximum H p(0.07) for the hands was 100 μSv. Maximum radiocontamination 20 times higher than background (0.05 μSv/h) was detected in bloody gauze. Conclusion: The workers' radiation dose exposure from SNNS was not high, although radiation management such as a temporary cooling off period may be required.

元の言語English
ページ(範囲)89-96
ページ数8
ジャーナルOpen Medical Imaging Journal
6
DOI
出版物ステータスPublished - 18-06-2012

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Tin
Colloids
Radiation
Breast Neoplasms
Safety
Hand
Radiation Monitoring
Nurse Anesthetists
Semiconductors
Operating Rooms
Radioisotopes
Glass
cyhalothrin
Injections
Radiation Exposure
Neoplasms

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

これを引用

Ejiri, Kazutaka ; Minami, Kazuyuki ; Toyama, Hiroshi ; Kudo, Gen ; Hattori, Hidekazu ; Kobayashi, Naomi ; Kato, Masaki ; Ishiguro, Masanobu ; Fujii, Hirofumi ; Kuroda, Makoto ; Utsumi, Toshiaki ; Iwase, Katsumi ; Katada, Kazuhiro. / Sentinel node navigation surgery with 99mTc-tin colloid in breast cancer : Radiation safety considerations. :: Open Medical Imaging Journal. 2012 ; 巻 6. pp. 89-96.
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title = "Sentinel node navigation surgery with 99mTc-tin colloid in breast cancer: Radiation safety considerations",
abstract = "Purpose: The incident at the Fukushima Daiichi nuclear power station in 2011 has again raised concerns with the public regarding radiation exposure, especially so in medical workers and patients undergoing treatment involving the use of radiation. Radioisotopes are currently used during sentinel node navigation surgery (SNNS) in operating rooms without radiation monitoring. To re-evaluate the safety issues, the potential effective dose (E poten) from 99mTc-tin (-Sn) colloid in breast cancer surgery was estimated and personal dose equivalents, H p(10) and H p(0.07), were measured during SNNS. Materials and methods: Seventeen breast cancer patients were enrolled. One day before SNNS, 99mTc-Sn colloid was injected around the tumor and radiation exposure rates were measured using survey meters. Personal dose equivalents for the surgical workers were measured. H p(10) and H p(0.07) for the body and H p(0.07) for the hands were recorded using semiconductor detectors and ring-type glass dosimeters. Results: The maximum E poten was 29 μSv per 74 MBq injection. The maximum H p(10) for the primary and assisting surgeons, nurse, and anesthetist was 3.7, 1.4, 0.3 and 0.6 μSv per SNNS, respectively. The maximum H p(0.07) for the hands was 100 μSv. Maximum radiocontamination 20 times higher than background (0.05 μSv/h) was detected in bloody gauze. Conclusion: The workers' radiation dose exposure from SNNS was not high, although radiation management such as a temporary cooling off period may be required.",
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Ejiri, K, Minami, K, Toyama, H, Kudo, G, Hattori, H, Kobayashi, N, Kato, M, Ishiguro, M, Fujii, H, Kuroda, M, Utsumi, T, Iwase, K & Katada, K 2012, 'Sentinel node navigation surgery with 99mTc-tin colloid in breast cancer: Radiation safety considerations', Open Medical Imaging Journal, 巻. 6, pp. 89-96. https://doi.org/10.2174/1874347101206010089

Sentinel node navigation surgery with 99mTc-tin colloid in breast cancer : Radiation safety considerations. / Ejiri, Kazutaka; Minami, Kazuyuki; Toyama, Hiroshi; Kudo, Gen; Hattori, Hidekazu; Kobayashi, Naomi; Kato, Masaki; Ishiguro, Masanobu; Fujii, Hirofumi; Kuroda, Makoto; Utsumi, Toshiaki; Iwase, Katsumi; Katada, Kazuhiro.

:: Open Medical Imaging Journal, 巻 6, 18.06.2012, p. 89-96.

研究成果: Article

TY - JOUR

T1 - Sentinel node navigation surgery with 99mTc-tin colloid in breast cancer

T2 - Radiation safety considerations

AU - Ejiri, Kazutaka

AU - Minami, Kazuyuki

AU - Toyama, Hiroshi

AU - Kudo, Gen

AU - Hattori, Hidekazu

AU - Kobayashi, Naomi

AU - Kato, Masaki

AU - Ishiguro, Masanobu

AU - Fujii, Hirofumi

AU - Kuroda, Makoto

AU - Utsumi, Toshiaki

AU - Iwase, Katsumi

AU - Katada, Kazuhiro

PY - 2012/6/18

Y1 - 2012/6/18

N2 - Purpose: The incident at the Fukushima Daiichi nuclear power station in 2011 has again raised concerns with the public regarding radiation exposure, especially so in medical workers and patients undergoing treatment involving the use of radiation. Radioisotopes are currently used during sentinel node navigation surgery (SNNS) in operating rooms without radiation monitoring. To re-evaluate the safety issues, the potential effective dose (E poten) from 99mTc-tin (-Sn) colloid in breast cancer surgery was estimated and personal dose equivalents, H p(10) and H p(0.07), were measured during SNNS. Materials and methods: Seventeen breast cancer patients were enrolled. One day before SNNS, 99mTc-Sn colloid was injected around the tumor and radiation exposure rates were measured using survey meters. Personal dose equivalents for the surgical workers were measured. H p(10) and H p(0.07) for the body and H p(0.07) for the hands were recorded using semiconductor detectors and ring-type glass dosimeters. Results: The maximum E poten was 29 μSv per 74 MBq injection. The maximum H p(10) for the primary and assisting surgeons, nurse, and anesthetist was 3.7, 1.4, 0.3 and 0.6 μSv per SNNS, respectively. The maximum H p(0.07) for the hands was 100 μSv. Maximum radiocontamination 20 times higher than background (0.05 μSv/h) was detected in bloody gauze. Conclusion: The workers' radiation dose exposure from SNNS was not high, although radiation management such as a temporary cooling off period may be required.

AB - Purpose: The incident at the Fukushima Daiichi nuclear power station in 2011 has again raised concerns with the public regarding radiation exposure, especially so in medical workers and patients undergoing treatment involving the use of radiation. Radioisotopes are currently used during sentinel node navigation surgery (SNNS) in operating rooms without radiation monitoring. To re-evaluate the safety issues, the potential effective dose (E poten) from 99mTc-tin (-Sn) colloid in breast cancer surgery was estimated and personal dose equivalents, H p(10) and H p(0.07), were measured during SNNS. Materials and methods: Seventeen breast cancer patients were enrolled. One day before SNNS, 99mTc-Sn colloid was injected around the tumor and radiation exposure rates were measured using survey meters. Personal dose equivalents for the surgical workers were measured. H p(10) and H p(0.07) for the body and H p(0.07) for the hands were recorded using semiconductor detectors and ring-type glass dosimeters. Results: The maximum E poten was 29 μSv per 74 MBq injection. The maximum H p(10) for the primary and assisting surgeons, nurse, and anesthetist was 3.7, 1.4, 0.3 and 0.6 μSv per SNNS, respectively. The maximum H p(0.07) for the hands was 100 μSv. Maximum radiocontamination 20 times higher than background (0.05 μSv/h) was detected in bloody gauze. Conclusion: The workers' radiation dose exposure from SNNS was not high, although radiation management such as a temporary cooling off period may be required.

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