Additional keywords: Medical devices, Clinical translation, deep learning
Our lab, at the Center for Biomedical OCT Research, is focused on optical coherence tomography (OCT) and other optical imaging technologies. Our projects rely on rigorous physics and mathematical concepts, while also involving hands-on hardware development and direct clinical translation. Many of our students, from departments like MIT HST, MIT EECS and Harvard SEAS, have the opportunity to develop new imaging techniques, then build up imaging hardware, and finally translate it in real life either to the clinic via MGH or through live animal studies. Optical imaging techniques are pervasive in biomedical engineering, from basic science to directly diagnosing and treating patients. While our lab is primarily focused on OCT, the knowledge and skills you will gain are highly translatable to all areas of imaging, even non-optical methods such as ultrasound and MRI.
Current Projects:
Optical intravascular elastography for assessment of atherosclerotic plaque biomechanics
The most prevalent type of heart disease is caused by atherosclerosis, the thickening of the vessel wall and creation of atherosclerotic plaque. Biomechanical characterization of plaques can enable the stratification of these lesions and the development of clinical studies to determine optimal treatment strategies. In this project, we will develop hardware and signal processing–including Fourier-domain analysis and programming in MATLAB, catheter engineering and custom laser development–for all-optical intravascular elastography using phase-sensitive ultra-fast optical coherence tomography
High-resolution, adaptive-optics retinal imaging for early detection of Alzheimer’s diseases
We are developing new capabilities in state-of-the-art functional imaging with adaptive-optics optical coherence tomography to determine if subtle structural and metabolic changes occur in early Alzheimer’s disease. If successful, these capabilities could be translated to conventional imaging systems in the clinic to enable population-level screening for Alzheimer’s disease. This project includes development of signal and image processing methods–including deep learning, working with unique and powerful custom imaging hardware, and imaging in animal models and human subjects
Tracking degeneration of individual neurons in the living retina with computational adaptive optics
High-resolution imaging of the retina with adaptive optics has opened the door to imaging individual neurons involved in the transmission of visual information from the retina into the brain. Degeneration of these neurons play a critical role in many sight-robbing diseases, but current adaptive optics instrumentation remain limited to the research lab. In this project, we will develop a computational adaptive optics technique–combining conventional signal processing and deep learning–that could enable high-resolution imaging in patients with minimal modifications to existing imaging systems in the clinic
Physics-informed functional imaging to enhance label-free contrast in optical coherence tomography
Functional extensions of optical coherence tomography provide enhanced contrast in a vast array of clinical applications, but suffer from low spatial resolution and image quality. In this project, we will develop a novel signal processing framework based on the physics of image formation and the statistics of the signal to dramatically enhance the resolution of angiographic, spectroscopic, and polarization-sensitive optical coherence tomography. These developments will be implemented in MATLAB, used in intravascular imaging and ophthalmic applications, and tested in animal models and patients.
Contact: uribepnr [at] mit.edu (uribepnr[at]mit[dot]edu)
Location: MGH Main Campus and MGB Assembly Row Campus (Somerville)