Broadband spectroscopy of the electromagnetic properties of aqueous ferrofluids for biomedical applications

Bellizzi, Gennaro; Bucci, O.M.; Capozzoli, Amedeo

doi:10.1016/j.jmmm.2010.05.020

Cited by 17 publications

(12 citation statements)

References 29 publications

(95 reference statements)

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“…Another approach is based on nanoparticles, which can be modulated by an external magnetic field [ 56 , 57 , 58 , 59 , 60 ]. In that case, the measurements are done after accumulation of nanoparticles in the malignant tissue of the breast so that the patient may keep in position the whole time needed for the data collection.…”

Section: Demonstration Examplesmentioning

confidence: 99%

Differential Ultra-Wideband Microwave Imaging: Principle Application Challenges

Sachs

Ley

Just

et al. 2018

Sensors

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Wideband microwave imaging is of interest wherever optical opaque scenarios need to be analyzed, as these waves can penetrate biological tissues, many building materials, or industrial materials. One of the challenges of microwave imaging is the computation of the image from the measurement data because of the need to solve extensive inverse scattering problems due to the sometimes complicated wave propagation. The inversion problem simplifies if only spatially limited objects—point objects, in the simplest case—with temporally variable scattering properties are of interest. Differential imaging uses this time variance by observing the scenario under test over a certain time interval. Such problems exist in medical diagnostics, in the search for surviving earthquake victims, monitoring of the vitality of persons, detection of wood pests, control of industrial processes, and much more. This paper gives an overview of imaging methods for point-like targets and discusses the impact of target variations onto the radar data. Because the target variations are very weak in many applications, a major issue of differential imaging concerns the suppression of random effects by appropriate data processing and concepts of radar hardware. The paper introduces related methods and approaches, and some applications illustrate their performance.

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Section: Demonstration Examplesmentioning

confidence: 99%

Differential Ultra-Wideband Microwave Imaging: Principle Application Challenges

Sachs

Ley

Just

et al. 2018

Sensors

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show abstract

“…With the advancement of the nanotechnology field and nanomaterials, several studies [31][32][33] proposed and investigated the possibility of improving the available cancer detection methods (magnetic resonance imaging (MRI), magneto-acoustic tomography (MAT), computed tomography (CT), and near-infrared (NIR) imaging) by combining the detection method with magnetic nanoparticle materials that are biocompatible such as iron oxide nanoparticles. In microwave detection for breast cancer, some recent studies explored the advantages of using magnetic nanoparticles to improve the contrast between the dielectric properties of normal, benign, and malignant breast tissues, as well as the in vivo and ex vivo states of breast tissues [31][32][33][34].…”

Section: Microwave Dielectric Properties Of Breast Tissuesmentioning

confidence: 99%

Review of Microwaves Techniques for Breast Cancer Detection

Aldhaeebi

Alzoubi

Almoneef

et al. 2020

Sensors

157

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Conventional breast cancer detection techniques including X-ray mammography, magnetic resonance imaging, and ultrasound scanning suffer from shortcomings such as excessive cost, harmful radiation, and inconveniences to the patients. These challenges motivated researchers to investigate alternative methods including the use of microwaves. This article focuses on reviewing the background of microwave techniques for breast tumour detection. In particular, this study reviews the recent advancements in active microwave imaging, namely microwave tomography and radar-based techniques. The main objective of this paper is to provide researchers and physicians with an overview of the principles, techniques, and fundamental challenges associated with microwave imaging for breast cancer detection. Furthermore, this study aims to shed light on the fact that until today, there are very few commercially available and cost-effective microwave-based systems for breast cancer imaging or detection. This conclusion is not intended to imply the inefficacy of microwaves for breast cancer detection, but rather to encourage a healthy debate on why a commercially available system has yet to be made available despite almost 30 years of intensive research.

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“…MNP is often considered as ferrofluids (FF) in biomedical applications. The magnetization dynamics of MNP can be modeled by [30]:…”

Section: Magnetic Susceptibility Of Mnpmentioning

confidence: 99%

Enhanced Holographic Microwave Imaging for MNP Target Tumor Detection

Wang

2019

IEEE Access

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Holographic microwave imaging (HMI) has been proposed as a potential imaging tool for breast cancer detection. However, this method is not sensitive enough to small tumors especially when they located inside the fibro-glandular tissue. This paper investigates the possibility of the use of enhanced HMI to improve the quality of breast image and diagnostic sensitivity by applying magnetic nanoparticles (MNP). A numerical system, including a realistic breast model, 16-element transducer array, a 2-element magnetic coil array, and an image processing model, has been developed to evaluate the effectiveness of the enhanced HMI method for mapping of a dense breast. The numerical results demonstrated that the proposed method could detect the MNP target breast tumor and distinguish the small tumor from fibro-glandular tissue in a dense breast, which has the potential to develop a useful imaging tool for early breast cancer detection in the future.INDEX TERMS Microwave imaging, diagnosis and therapy, magnetic nanoparticles, nanotechnology.

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Broadband spectroscopy of the electromagnetic properties of aqueous ferrofluids for biomedical applications

Cited by 17 publications

References 29 publications

Differential Ultra-Wideband Microwave Imaging: Principle Application Challenges

Differential Ultra-Wideband Microwave Imaging: Principle Application Challenges

Review of Microwaves Techniques for Breast Cancer Detection

Enhanced Holographic Microwave Imaging for MNP Target Tumor Detection

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