A5018707981- Microwave Imaging and Scattering Analysis
- Ultrasonics and Acoustic Wave Propagation
- Ultrasound Imaging and Elastography
- Geophysical Methods and Applications
- Wireless Body Area Networks
- Microwave and Dielectric Measurement Techniques
- Photoacoustic and Ultrasonic Imaging
- Ultrasound and Hyperthermia Applications
University of Pavia
2021-2024
Microwave Tomography (MWT) imaging is currently being investigated as a new diagnostic modality for assessing bone health conditions. It has already been employed in other medical contexts, showing different advantages (i.e., portability, low cost, and use of non-ionizing radiation) compared to the current modalities. Early investigations MWT have considered without skin layer even numerical investigations. Therefore, this study, realistic three-layer calcaneus-shaped phantom involving an...
Microwave imaging (MWI) can be used as an alternative modality for monitoring human bone health. So far, studies on microwave have considered a homogenous tissue; however, is composed of cortical and trabecular layer having significantly different dielectric properties microarchitecture. The more susceptible to diseases like osteoporosis. Contrarily, osteoarthritis, another significant disease, has severe impact bone. Therefore, considering two types paramount importance diagnosing diseases....
Objective. In this paper, we focus on the dielectric and mechanical characterization of tissue-mimicking breast phantoms.Approach. Starting from recipes previously proposed by our research group, based easy-to-handle, cheap safe components (i.e. sunflower oil, deionized water, dishwashing liquid gelatin), produced tested, both dielectrically mechanically, more than 100 samples. The properties were measured 500 MHz to 14 GHz, Cole-Cole parameters derived describe behaviour in a broader...
Tissue-mimicking phantoms represent a key point for the development of biomedical systems diagnostic imaging. In this paper, new recipes tissue-mimicking breast are proposed and tested, both dielectrically mechanically. Phantoms mimicking human neoplastic tissues considered, as they anatomically stiffer than surrounding healthy tissues. our recipes, only cheap, easy-to-manage safe components involved, performance two solidifying agents (i.e., gelatin agar) evaluated from dielectric...
This study contributesto the ongoing progress in microwave-based breast tumor detection systems, recognizing their potential advantages over traditional techniques. research centers on development of more realistic phantoms with precise dielectric properties, which are essential for evaluating these innovative systems. A key highlight is implementation a thorough two-step procedure crafting multi-layer that faithfully replicate actual tissues. To validate accuracy phantoms, measurements were...
Microwave Imaging (MWI) is an emerging imaging technique that can potentially replace current clinical methods (i.e., Dual-energy X-ray absorptiometry (DXA), computerized tomography (CT)) involved in the identification of bone anomalies and diagnosis conditions like osteoporosis osteoarthritis. Experimental characterizations along with tests are required to validate this technology. In work, experimental multi-layer calcaneus-shaped phantom has been employed, which already tested from a...
The characterization of tissue-mimicking materials (TMMs) represents a critical step in the development and testing new imaging systems, involving different modalities based on millimeter (mm) ultrasound (US) waves. In this work, two breast phantoms (i.e., fat TMM tumor TMM) for multimodal were produced characterized from dielectric, mechanical acoustic point view. dielectric was carried out order to estimate permittivity frequency range 0.5-40 GHz. measurements these phantoms, instead,...
In this paper, the mechanical properties of tissue-mimicking phantoms, produced and dielectrically tested to mimic breast tissues, are presented. Testing on phantoms represents one key steps in process realization several devices and, for reason, interest towards more realistic not only from dielectric point view but also one, is growing. work, mixtures, based use low-cost, safe easy-to-handle materials (water, oil, gelatin dishwashing liquid), have been under different measurement...
Multimodal tissue-mimicking breast phantoms represent a useful instrument to validate the experimental imaging systems, as biological samples are not always available for testing. In context of cancer detection, multimodal approaches gaining increasing interest they could provide complementary data about investigated tissues. The aim this work is brief review on characterization dielectric, mechanical and acoustic properties prove that it possible design material able emulate different...
In this paper, multi-layer phantoms of the human breast, obtained from recipes previously proposed by some authors work, are presented. Heterogeneous and multiple-layer allow performance evaluation microwave-based medical devices on increasingly realistic scenarios. The two-steps preparation procedure is very simple involves cooling part phantom. It has been shown that does not alter dielectric properties individual layers.