Feasibility study evaluating a magnetic marker in an ex-vivo porcine model

Peek, Mirjam; Zada, Ali; Ahmed, Muneer; Baker, Rose; Sekino, Masaki; Kusakabe, Moriaki; Douek, Michael

doi:10.1016/j.jmmm.2018.01.030

Cited by 1 publication

(1 citation statement)

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“…4 Early-stage cancers may not be palpable, and therefore, a small implantable device can function as crucial a guide to mark the lesion for excision. 5,6 A hook-wire is a typical marker device that is used globally. Before surgery, a hook-wire is inserted into the lesion using ultrasound imaging.…”

Section: Introductionmentioning

confidence: 99%

Estimating the location of the hook-wire used in breast-conserving surgery using a magnetometer

Debnath,

Kuwahata,

Sunaga

et al. 2024

AIP Advances

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In the surgical treatment of nonpalpable breast lesions, such as in early-stage cancer, a hook-wire is inserted into the lesion as a marker to enable surgeons to excise the tissue, along with the hook-wire, with a good margin. However, a benchmark technique for intraoperatively determining whether the excised tissue has an appropriate margin around the lesion has not yet been established. In this study, a method for locating a ferromagnetic stainless steel hook-wire inside the excised tissue using a magnetometer is proposed. The magnetometer is placed around a phantom along with the hook-wire at varied locations to map the magnetic field distribution. The three-dimensional coordinates of hook-wire are obtained by executing an optimization algorithm. The experimental results indicate that the location of the hook-wire is successfully obtained. Based on the information regarding the margin around the hook-wire, the surgeon can immediately evaluate the risk of whether some cancer cells still remain in the body.

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Section: Introductionmentioning

confidence: 99%