The sensitivity mapping of a handheld magnetic probe with a permanent magnet for sentinel lymph node biopsy
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- Kuwahata Akihiro
- Graduate School of Engineering, The University of Tokyo
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- Chikaki Shinichi
- Graduate School of Engineering, The University of Tokyo
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- Kaneko Miki
- Graduate School of Engineering, The University of Tokyo
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- Shiozawa Mikio
- Ibaraki Prefectural Central Hospital
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- Takei Hiroyuki
- Nippon Medical School Hospital
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- Nakamura Seigo
- Showa University Hospital
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- Nakagawa Takayuki
- Graduate School of Agricultural and Life Sciences, The University of Tokyo
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- Saeki Kohei
- Graduate School of Agricultural and Life Sciences, The University of Tokyo
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- Saito Itsuro
- iMed Japan
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- Kusakabe Moriaki
- Graduate School of Agricultural and Life Sciences, The University of Tokyo Matrix labolatory
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- Sekino Masaki
- Graduate School of Engineering, The University of Tokyo
Bibliographic Information
- Other Title
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- 乳がんセンチネルリンパ節生検に用いる永久磁石型磁気プローブの空間分解能の評価
Abstract
<p>The magnetic technique using a magnetic tracer and handheld magnetic probe with permanent magnet can be alternatives to the radioisotope technique as a noninvasive promising method for sentinel lymph node biopsy. To identify one sentinel lymph node, 5 mm spatial resolution of the probe is required because sentinel lymph nodes are often clustered in axillary lymph nodes. The aim of this study is to demonstrate a spatial resolution of the magnetic probe by a sensitivity mapping measurement with high spatial resolutions.The longitudinal sensitivity and lateral resolution of the probe was approximately 8 mm and 4 mm, respectively, for 5 μL of the magnetic tracer (Resovist). The probe discriminated the one phantom from two phantoms separated 4 mm in the lateral direction. These results indicate that the magnetic probe with the permanent magnet has the ability to identify one sentinel lymph node from the node clusters in actual usages.</p>
Journal
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- Transactions of Japanese Society for Medical and Biological Engineering
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Transactions of Japanese Society for Medical and Biological Engineering 55Annual (5AM-Abstract), 390-390, 2017
Japanese Society for Medical and Biological Engineering
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Details 詳細情報について
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- CRID
- 1390001205269949184
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- NII Article ID
- 130006077081
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- ISSN
- 18814379
- 1347443X
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed