Dhritiman Das, Ph.D.

Postdoc at MIT | Deep Learning | Computer Vison | Neuroinformatics

Research Interests

Machine Learning
Medical Image Analysis
Computer Vision
Signal Processing
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Neurology (clinical)
Neurology
Radiology, Nuclear Medicine and imaging
Molecular Medicine
Spectroscopy
Electrical and Electronic Engineering
Computer Science Applications
Software
Radiological and Ultrasound Technology

About

Postdoctoral Researcher at the Massachusetts Institute of Technology and freelance machine-learning consultant for startups. Strong background in Deep Learning, Computer Vision, Signal Processing and Neuroinformatics. My work has involved building pipelines for integrating machine learning technologies for medical imaging research and clinical applications. Key focus areas: self-supervised learning, multimodal learning, generative models, open source ML software development, image & signal processing, large-scale datasets (2D, 3D, time-series), reproducible research. Skilled in Python (TensorFlow/Keras/Pytorch), JAX, C++, Pandas, Docker, Matlab. Previously, I was a Marie Skłodowska-Curie PhD Fellow in Computer Science at the Technical University of Munich and GE Healthcare. My thesis focused on Data Driven Methods (using Machine Learning) for Accelerated Analysis of 3D Neuroimaging Data. Strong track record of multi-site collaborations across academia and industry along with high-impact publications.

Publications

Convolutional Neural Networks for Direct Inference of Pharmacokinetic Parameters: Application to Stroke Dynamic Contrast-Enhanced MRI

Frontiers in Neurology / Jan 08, 2019

Ulas, C., Das, D., Thrippleton, M. J., Valdés Hernández, M. del C., Armitage, P. A., Makin, S. D., Wardlaw, J. M., & Menze, B. H. (2019). Convolutional Neural Networks for Direct Inference of Pharmacokinetic Parameters: Application to Stroke Dynamic Contrast-Enhanced MRI. Frontiers in Neurology, 9. https://doi.org/10.3389/fneur.2018.01147

Quantification of Metabolites in Magnetic Resonance Spectroscopic Imaging Using Machine Learning

Medical Image Computing and Computer Assisted Intervention − MICCAI 2017 / Jan 01, 2017

Das, D., Coello, E., Schulte, R. F., & Menze, B. H. (2017). Quantification of Metabolites in Magnetic Resonance Spectroscopic Imaging Using Machine Learning. In Lecture Notes in Computer Science (pp. 462–470). Springer International Publishing. https://doi.org/10.1007/978-3-319-66179-7_53

Velocity-To-Pressure (V2P) - Net: Inferring Relative Pressures from Time-Varying 3D Fluid Flow Velocities

Lecture Notes in Computer Science / Jan 01, 2021

Shit, S., Das, D., Ezhov, I., Paetzold, J. C., Sanches, A. F., Thuerey, N., & Menze, B. H. (2021). Velocity-To-Pressure (V2P) - Net: Inferring Relative Pressures from Time-Varying 3D Fluid Flow Velocities. In Information Processing in Medical Imaging (pp. 545–558). Springer International Publishing. https://doi.org/10.1007/978-3-030-78191-0_42

An Optical Flow-Based Approach for Minimally Divergent Velocimetry Data Interpolation

International Journal of Biomedical Imaging / Feb 03, 2019

Kanberoglu, B., Das, D., Nair, P., Turaga, P., & Frakes, D. (2019). An Optical Flow-Based Approach for Minimally Divergent Velocimetry Data Interpolation. International Journal of Biomedical Imaging, 2019, 1–14. https://doi.org/10.1155/2019/9435163

Spatially Adaptive Spectral Denoising for MR Spectroscopic Imaging using Frequency-Phase Non-local Means

Lecture Notes in Computer Science / Jan 01, 2016

Das, D., Coello, E., Schulte, R. F., & Menze, B. H. (2016). Spatially Adaptive Spectral Denoising for MR Spectroscopic Imaging using Frequency-Phase Non-local Means. In Medical Image Computing and Computer-Assisted Intervention - MICCAI 2016 (pp. 596–604). Springer International Publishing. https://doi.org/10.1007/978-3-319-46726-9_69

Optical and Optoacoustic imaging: the revolution of label free observations

Proceedings of the European Microscopy Congress 2020 / Mar 01, 2021

Ntziachristos, V. (2021, March 1). Optical and Optoacoustic imaging: the revolution of label free observations. Proceedings of the European Microscopy Congress 2020. https://doi.org/10.22443/rms.emc2020.14

Joint Automatic Metabolite Identification and Quantification of a Set of 1H NMR Spectra

Joint Automatic Metabolite Identification and Quantification of a Set of 1H NMR Spectra. (n.d.). American Chemical Society (ACS). https://doi.org/10.1021/acs.analchem.0c04232.s001

Reliability of MRSI brain temperature mapping at 1.5 and 3 T

NMR in Biomedicine / Nov 24, 2013

Thrippleton, M. J., Parikh, J., Harris, B. A., Hammer, S. J., Semple, S. I. K., Andrews, P. J. D., Wardlaw, J. M., & Marshall, I. (2013). Reliability of MRSI brain temperature mapping at 1.5 and 3 T. NMR in Biomedicine, 27(2), 183–190. Portico. https://doi.org/10.1002/nbm.3050

LANNS

Proceedings of the VLDB Endowment / Dec 01, 2021

Doshi, I., Das, D., Bhutani, A., Kumar, R., Bhatt, R., & Balasubramanian, N. (2021). LANNS: a web-scale approximate nearest neighbor lookup system. Proceedings of the VLDB Endowment, 15(4), 850–858. https://doi.org/10.14778/3503585.3503594

The Multimodal Brain Tumor Image Segmentation Benchmark (BRATS)

IEEE Transactions on Medical Imaging / Oct 01, 2015

Menze, B. H., Jakab, A., Bauer, S., Kalpathy-Cramer, J., Farahani, K., Kirby, J., Burren, Y., Porz, N., Slotboom, J., Wiest, R., Lanczi, L., Gerstner, E., Weber, M.-A., Arbel, T., Avants, B. B., Ayache, N., Buendia, P., Collins, D. L., Cordier, N., … Van Leemput, K. (2015). The Multimodal Brain Tumor Image Segmentation Benchmark (BRATS). IEEE Transactions on Medical Imaging, 34(10), 1993–2024. https://doi.org/10.1109/tmi.2014.2377694

Education

Technical University of Munich

Ph.D., Computer Science

Munich

Arizona State University

M.S., Bioengineering

Tempe, Arizona, United States of America

Manipal Institute of Technology

B.E., Biomedical Engineering

Manipal

Experience

Massachusetts Institute of Technology

Postdoctoral Researcher

Technical University of Munich

Scientific Staff / 20152020

GE Healthcare

Early Stage Researcher / 20152019

Siemens Limited

Computer Vision Intern / May, 2014August, 2014

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