Changes in quantitative ultrasound imaging as the predictor of response to neoadjuvant chemotherapy in patients with breast cancer

Piotrzkowska-Wróblewska, Hanna; Dobruch‐Sobczak, Katarzyna; Gumowska, M; Litniewski, Jerzy

doi:10.1109/ius54386.2022.9957940

Cited by 1 publication

(1 citation statement)

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“…Non−invasive focused microwave−hyperthermia (FMHT) is an advanced method of breast−cancer treatment that uses a variety of antennas or antenna arrays to focus the power of microwaves on human malignant tissue [ 3 ]. Breast cancer can be diagnosed by medical imaging including ultrasound [ 4 , 5 ], mammography [ 6 ], and MRI [ 7 ]. In addition, microwave heating shows the characteristics of selective heating because of the difference in the loss factor of each tissue [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Design of Ultra-Wideband Phased Array Applicator for Breast Cancer Hyperthermia Therapy

Lyu

Li²,

Li³

et al. 2023

Sensors

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Focused microwave−hyperthermia therapy has recently emerged as a key technology in the treatment of breast cancer due to non−invasive treatment. An applicator of a three−ring phased array consisting of ultra−wideband (UWB) microstrip antennas was designed for breast cancer therapy and operates at 0.915 GHz and 2.45 GHz. The proposed antenna has an ultra−wideband from 0.7 GHz to 5.5 GHz with resonant frequencies of 0.915 GHz and 2.45 GHz and dimensions of 15 × 43.5 × 1.575 mm3. The number of each ring was chosen to be 12 based on the SAR distribution and the performance indicators of tumor off−center focusing results for four different numbers of single−ring arrays. The homogeneous breast model is applied to a three−ring phased array consisting of 36 elements for focused simulation, and 1 cm3 and 2 cm3 tumors are placed in three different locations in the breast. The simulation results show that the proposed phased array has good performance and the capability to raise the temperature of different volumes of breast cancer above 42.5 °C after choosing a suitable operating frequency. The proposed applicator allows for precise treatment of tumors by selecting the appropriate operating frequency based on the size of the malignant tumor.

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