IEEE JERM

Can microwave imaging provide a new way to diagnose diseases affecting the cervical spine? Read the paper: https://lnkd.in/efEHhSyG This IEEE J-ERM paper explores the feasibility. The research proposes an inverse scattering method using microwaves to create 2D images of dielectric properties in a cross-section of the neck. A prototype system with antennas illuminates the neck to measure scattered fields, and a nonlinear reconstruction procedure generates the images. A simplified 3D-printed neck phantom was used for initial numerical and experimental assessments. This work represents a preliminary analysis toward developing a potential microwave imaging system for cervical diagnostics, such as cervical myelopathy. #IEEEJERM #MicrowaveImaging #MedicalImaging #InverseProblems #CervicalDiagnostics #BiomedicalEngineering

A textile layer in direct contact with skin can increase electromagnetic power absorption by over 40% at 5G millimeter-wave frequencies. Read the paper: https://lnkd.in/ekpYrVzU This IEEE J-ERM study models how cotton and wool fabrics affect power deposition and heating in near-surface tissues at 26 GHz and 60 GHz. With fabric in contact, temperature rise increased by up to 52% compared to bare skin. An air gap between textile and skin can either reduce or increase heating, depending on its thickness. The findings are crucial for accurate electromagnetic and thermal dosimetry in 5G exposure scenarios involving wearable devices or clothing. #IEEEJERM #5G #mmWave #Dosimetry #Electromagnetics #Wearable

A multi-frequency integration scheme significantly improves the noise-robustness of microwave breast imaging. Read the paper: https://lnkd.in/eAtMWs7i This IEEE J-ERM study applies a post-processing method to Contrast Source Inversion data to suppress image fluctuations caused by additive noise in UWB systems. Numerical validations using realistic breast phantoms show the scheme upgrades complex permittivity reconstruction. The work addresses a key challenge in providing accurate dielectric profiles for less-painful breast examination. #IEEEJERM #MicrowaveImaging #BreastCancer #Dielectrics #InverseProblem #MedicalImaging

Optimizing hyperthermia treatments for cancer to maximize tumor heating while minimizing side effects remains a critical clinical challenge. Read the paper: https://lnkd.in/eu-YEueK This IEEE J-ERM paper reviews progress. The paper details how hyperthermia treatment planning, which simulates and optimizes power and temperature distributions, is now an important clinical tool. It is used for selecting applicators, evaluating heating ability, and guiding treatments. Ongoing developments aim to improve reliability through patient-specific dielectric imaging and advanced thermal modeling. This integration into clinical workflows helps improve the quality of this proven anti-cancer treatment that enhances radiotherapy and chemotherapy. #IEEEJERM #Hyperthermia #TreatmentPlanning #MedicalApplications #RF #Microwaves

A novel method for monitoring respiratory rate uses electrical impedance measurements from electrodes placed near the mastoid bones on the head. This IEEE J-ERM research measures impedance changes in the pharynx caused by breathing. The feasibility was assessed via electromagnetic simulations, and a data processing algorithm extracts the breath rate. Preliminary experimental results investigate the setup's capabilities. This work explores a path toward minimally-invasive wearable breath monitoring devices. Read the paper: https://lnkd.in/eVwuGYVK #IEEEJERM #BiomedicalMonitoring #WearableDevices #ImpedanceMeasurement #BreathMonitoring

The average difference in relative permittivity for new liquid tissue-mimicking mixtures is just 3.4% for trabecular bone across 0.5–8.5 GHz. Read the paper: https://lnkd.in/eV76uzAh This research presents a valuable test platform for microwave bone imaging. This IEEE J-ERM study details an anatomically realistic, multi-layered phantom of the human calcaneus [heel bone]. It proposes novel liquid and solid mixtures that accurately mimic the dielectric properties of skin, muscle, and bone. Such realistic phantoms are vital for the preclinical development of microwave imaging systems aimed at monitoring bone health like osteoporosis. #IEEEJERM #MicrowaveImaging #MedicalPhantom #DielectricProperties #BoneHealth #TissueMimicking

By conducting a critical review, researchers analyze the key design challenges for antennas in implantable medical devices. Read the paper: https://lnkd.in/e9F6KpSb Published in IEEE J-ERM, this paper examines implantable antennas that enable wireless patient monitoring. It highlights critical factors like miniaturization, biocompatibility, patient safety, and operating frequency bands that dictate overall sensor performance. This review matters as antenna selection is a pivotal yet challenging task for creating robust, long-term implantable systems. #IEEEJERM #ImplantableAntenna #BiomedicalTelemetry #MedicalDevices #PatientSafety #WirelessHealth

Advancing microwave radar for breast cancer screening requires more compact and affordable systems. This IEEE J-ERM research reports on a prototype using an integrated circuit pulse radio to replace bulky off-the-shelf components. Read the paper: https://lnkd.in/dGkRAjrv The study compares measurements from the new IC-based system and the original system using two different breast phantoms. The work aims to enable implementation of the pulse generation on a single flexible circuit board with antennas and switching. This miniaturization is a key step toward practical and cost-effective microwave imaging devices for early detection. #IEEEJERM #MicrowaveImaging #BreastCancerScreening #IntegratedCircuits #MedicalDiagnostics #WearableDevices

✅ 𝗙𝗿𝗼𝗺 𝗥𝗮𝗱𝗮𝗿 𝗕𝗶𝗼𝗰𝗵𝗲𝗺𝗶𝗰𝗮𝗹 𝗦𝗲𝗻𝘀𝗶𝗻𝗴 𝘁𝗼 𝗡𝗲𝘅𝘁-𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗼𝗻 𝗪𝗲𝗮𝗿𝗮𝗯𝗹𝗲 𝗛𝗲𝗮𝗹𝘁𝗵 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴 I am excited to share our recently published paper, “𝗡𝗼𝗻-𝗖𝗼𝗻𝘁𝗮𝗰𝘁 𝗠𝗶𝗹𝗹𝗶𝗺𝗲𝘁𝗲𝗿-𝗪𝗮𝘃𝗲 𝗥𝗮𝗱𝗮𝗿 𝗧𝗿𝗮𝗻𝘀𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗼𝗳 𝗛𝘆𝗱𝗿𝗼𝗴𝗲𝗹 𝗕𝗶𝗼𝗰𝗵𝗲𝗺𝗶𝗰𝗮𝗹 𝗦𝘁𝗮𝘁𝗲,” in the IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology (IEEE JERM). Monitoring biochemical changes in hydrated or enclosed environments requires sensing without embedded electrodes, optical access, or wired connections. We demonstrate a passive hydrogel-loaded planar resonator that converts analyte-induced permittivity changes into spectral signatures measured through non-contact near-field interrogation using a commercial millimeter-wave FMCW radar from Infineon Technologies. Using pH-responsive hydrogels as a controlled model, the platform shows monotonic, highly linear, repeatable, and low-hysteresis responses, with quantified sensitivity and detection limits, and provides a general pathway toward sealed-interface sensing of glucose, lactate, cardiovascular-relevant analytes, and other clinically relevant biomarkers. This interdisciplinary work was made possible through close collaboration between University of Waterloo Electrical and Computer Engineering and the Department of #Chemistry. I am sincerely grateful to my co-authors Yu C., Xiaohan Zhang, Veronica L., Brayden Herbert, and Prof. Juewen Liu for their valuable contributions and sustained collaboration throughout the development of this work, with special appreciation to Prof. George Shaker for his invaluable supervision and mentorship in shaping and advancing this research. We warmly invite researchers, clinicians, biomedical engineers, and industry professionals working in wearable health technologies to review our paper and share their perspectives. 🔗 Access the paper on IEEE Xplore: https://lnkd.in/g26e-pCF #Biomedical #Biosensors #Wearable #DigitalHealth #Biochemical #MillimeterWave #RadarSensing #Microwave #Electromagnetics #Hydrogels #Biomaterials #DielectricSensing #MedTech #Noninvasive #IEEE #IEEEAPS #UniversityOfWaterloo

A radar system can track the motion of multiple walking people without physical contact. Read the paper: https://lnkd.in/d53KdQTy This IEEE J-ERM research uses signal processing to analyze gait from different body parts separately. The method applies a state-space technique to 2D radar data, improving motion tracking by accounting for correlations between consecutive frames. It denoises the data and tracks body part velocities with high accuracy, aligning well with a standard human motion model. This work demonstrates a robust, non-contact approach for multi-subject gait analysis, which is valuable for biomedical monitoring and movement studies. #IEEEJERM #GaitAnalysis #MotionTracking #Radar #SignalProcessing #BiomedicalEngineering