Projects

Microfluidic Electronic Detection of Protein Biomarkers

We are developing an all-electronic immunoassay with which we can 1) achieve high-throughput, potentially measuring all protein biomarkers in blood samples; 2) reduce cost by taking advantage of the decreasing cost of silicon electronics; 3) deliver results to patients before they meet with their physicians.

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A Portable Bioimpedance Measurement System for Congestive Heart Failure Management

Bioimpedance measurements have been shown to be predictive of heart failure decompensation up to 14 days before an event occurs. We have developed a portable bioimpedance system that can measure body impedance from 1 kHz to 1 MHz. The system uses the Magnitude-Ratio and Phase Difference Detection method to calculate the magnitude and phase of the measured impedance.

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A Wearable Long-term Cardiac Monitor

Authors: Maggie Delano, Stanislav Yukashov, Charles Sodini

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Predicting Death After Acute Coronary Syndrome

Frequency domain measures of heart rate variability (HRV) are associated with adverse events after a myocardial infarction. However, because of natural variability in heart rate over time and across patients, patterns in the traditional “time-frequency” domain (measured in Hz) may capture different cardiac phenomena at different heart rates.

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Long-Term, Subdermal Implantable EEG Recorder and Seizure Detector

Epilepsy patients with infrequent seizures cannot come into the hospital for weeks on end in order for an event to be captured on EEG – a necessary prerequisite for making a definitive diagnosis, tailoring therapy, or even affixing the true rate of events. This work aims to solve this need by proposing a subdermal implantable 8-channel EEG monitor and seizure detector.

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An Electronically Steered, Wearable Transcranial Doppler (TCD) Ultrasound

While several non-invasive cerebrovascular diagnostic modalities exist, the use of transcranial Doppler (TCD) sonography is highly compelling for certain diagnostic needs due to its safety in prolonged studies, high temporal resolution, and relative portability.

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Piezoelectric Micro-Machined Ultrasonic Transducers for Medical Ultrasound

Commercial realization of advanced medical ultrasound imaging trends will require cost effective, large scale arrays of miniaturized elements, which are expensive to fabricate using traditional bulk piezoelectric materials. At high volume, micro-fabricated transducers are an array compatible and low cost alternative.

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Non-invasive Arterial Pressure Waveform Monitoring

An arterial blood pressure (ABP) waveform provides valuable information in treating cardiovascular diseases of patients. Ultrasonic ABP monitoring is preferable because of the potentially portable system implementation and its non-invasive nature, thus minimizing tissue damage and the possibility of infection.

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Noninvasive Estimation of Intracranial Pressure

Intracranial pressure (ICP) is one of the key variables to monitor in patients with brain injury. We developed a model-based approach to noninvasive, continuous, patient-specific and calibration-free estimation of ICP.

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Calibration-Free Blood Pressure Estimation Using Ultrasound

In this poster, an algorithm is developed to estimate blood pressure at the carotid artery in a way that is non-invasive, potentially continuous, easy-to-use, and calibration-free.

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Thyroid Elasticity – Early Clinical Data

Authors: Sisir Koppaka, Matthew Gilbertson, Dhyani Manish, Anthony Samir, Brian Anthony

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Limb Imaging for Prosthetic Fitting

The quality of a prosthetic fitting is determined by the biomechanical interaction between the prosthetic socket and the residual limb. An optimized fitting can improve muscle usage, relieve pressure points, and improve overall mobility.

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Early Warning System for Sepsis/Septic Shock

Authors: Michael Filbin, Andrew Reisner, Thomas Heldt

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