Dielectric Properties Characterization From 0.5 to 50 GHz of Breast Cancer Tissues

Martellosio, A.; Pasian, Marco; Bozzi, Maurizio; Perregrini, Luca; Mazzanti, Andrea; Svelto, F.; Summers, Paul; Renne, Giuseppe; Preda, Lorenzo; Bellomi, Massimo

doi:10.1109/tmtt.2016.2631162

Cited by 200 publications

(133 citation statements)

References 35 publications

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“…However, statistically significant differences were not found between the dielectric properties of in vivo and ex vivo malignant tissue. Another study reported no statistically significant changes into the complex permittivity of breast cancer tissues for times between excision and measurement smaller than 3 h and 29 min. We also controlled the sample temperature, which due to the small size of the samples, rapidly arrived at room temperature (between 20 and 22°C) and remained stable.…”

Section: Discussionmentioning

confidence: 97%

“…All measurements were acquired around 2 min after excision, except from cancer and healthy mucosa samples that were delayed up to 2 h (typically 30 min). With the scarcity of data available in the literature, it is difficult to quantify how post‐excision conditions can affect our measurements. There is a consensus in the literature that differences between in vivo and ex vivo properties are more important at low frequencies (<100 MHz), also being quite dependent on the type of tissue.…”

Section: Discussionmentioning

confidence: 99%

“…We also controlled the sample temperature, which due to the small size of the samples, rapidly arrived at room temperature (between 20 and 22°C) and remained stable. Since no effect is expected due to a variation in temperature, this effect has not been studied further in this work.…”

Section: Discussionmentioning

confidence: 99%

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Dielectric properties of colon polyps, cancer, and normal mucosa: Ex vivo measurements from 0.5 to 20 GHz

et al. 2018

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

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Dielectric properties of colon polyps, cancer, and normal mucosa: Ex vivo measurements from 0.5 to 20 GHz

et al. 2018

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“…At the same time, the temperature of the sample(s) should be recorded. Other factors related to the measurement may be recorded as well, such as the pressure of the probe‐sample contact, humidity, or physiological data if measurements are being performed on a live subject . Best practice also requires another validation measurement of the known material at the end of the test measurements, in order to ensure that the accuracy of the measurement is still high …”

Section: Minimum Information For Dielectric Measurements Of Biologicamentioning

confidence: 99%

Minimum information for dielectric measurements of biological tissues (MINDER): A framework for repeatable and reusable data

Porter

Gioia

Salahuddin

et al. 2017

Int J RF Microw Comput Aided Eng

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The dielectric properties of biological tissues characterise the interaction of human tissues with electromagnetic (EM) fields. Accurate knowledge of the dielectric properties of tissues are vital in EM‐based therapeutic and diagnostic techniques, and for assessing the safety of wireless devices. Despite the importance of these properties, the field has suffered from inconsistencies in reported data. The dielectric measurement process for tissues is known to be affected by both measurement confounders and clinical confounders; however, adequate metadata is often lacking in the literature. For this reason, this work proposes a standard, called Minimum Information for Dielectric Measurements of Biological Tissues (MINDER). In the MINDER model, the minimum types of raw data and metadata needed to interpret or replicate a dielectric study are identified and described. Alongside the minimum information model, a controlled vocabulary for metadata parameters is proposed. We also provide an example of this model applied to a dielectric measurement scenario on a biological tissue sample. The MINDER model enables reproducibility of measurements, ease of interpreting and re‐using data, and comparison of data across studies. Further, this standard framework will support dielectric databases, with data searchable through metadata parameters such as temperature, frequency range, tissue type, and tissue state.

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“…The dielectric constant of human skin (palm) is approximately 1.5 at 60 GHz [38]. The dielectric value of normal human breast is approximately 3 at 50 GHz [39,40]. Therefore, we take polystyrene whose dielectric is in between 2-3 in the considered frequency range [41].…”

Section: Arrangement Of Imaging Systemmentioning

confidence: 99%

Development of an Adaptive Approach for Identification of Targets (Match Box, Pocket Diary and Cigarette Box) Under the Cloth With MMW Imaging System

Kumar¹,

Upadhyay²,

Singh³

2017

PIER B

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Abstract-Non-metallic objects, such as match box and cigarette box, detection and identification are quite an essential task during personal screening from standoff distance to protect the public places like the airport. Although various imaging sensors such as microwave, THz, infrared and MMW with signal processing techniques have been demonstrated by the researchers for concealed weapon detection, it is still a challenging task to detect and identify different types of small size targets such as matchbox, pocket diary and cigarette box simultaneously. Therefore, in this paper, an attempt has been made to develop such an algorithm/methodology by which different types of small targets, such as a matchbox and cigarette box, which is fully or half-filled or empty and pocket diary at different orientations beneath various cloths can be detected and identified with an MMW radar system. For this purpose, an optimal method has been proposed to form an image, and after that, in post processing a novel adaptive approach for detection and identification of considered targets has been proposed. The data were collected by MMW system at V-band (59 GHz-61 GHz). The proposed algorithm/methodology gives a quite satisfactory result.

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Dielectric Properties Characterization From 0.5 to 50 GHz of Breast Cancer Tissues

Cited by 200 publications

References 35 publications

Dielectric properties of colon polyps, cancer, and normal mucosa: Ex vivo measurements from 0.5 to 20 GHz

Dielectric properties of colon polyps, cancer, and normal mucosa: Ex vivo measurements from 0.5 to 20 GHz

Minimum information for dielectric measurements of biological tissues (MINDER): A framework for repeatable and reusable data

Development of an Adaptive Approach for Identification of Targets (Match Box, Pocket Diary and Cigarette Box) Under the Cloth With MMW Imaging System

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