Experience
2018 — 2023
2018 — 2023
• HeartFlow-Imperial College London collaboration on deep learning-based CCTA reconstruction and multi-phase image registration.
• Conception, development, and training of deep learning (DL) image registration models on large 3D multiphase coronary computed tomography angiography (CCTA) datasets for construction of cardiac motion models suitable for simulation-based data augmentation of CT acquisition and reconstruction.
• Conception, development, and training of DL coronary artery motion quantification from single 3D CCTA images to detect and quantify cardiac motion from CT reconstruction motion artifact signature.
• Implemented CUDA-accelerated PyTorch operator for differentiable B-spline deformation field sampling.
• Implemented tools to parse and curate multiphase CCTA DICOM files.
• Developed interactive, point-to-surface 3D image annotation tool built on Slicer 3D for manual segmentation of cardiac anatomy.
2017 — 2018
• Led transition of Image Analysis team deep learning framework to TensorFlow.
• Thought leader for cross-functional proposal to revamp Production Image Quality Assessment process to produce ‘learnable data’ to realize virtuous cycle of automation, learnable human correction, automation improvement.
• Scrum master for Image Analysis sub-team.
• Training and supervision of new hire algorithms engineer.
• Reformulated TensorFlow CMake build system to support dynamic linkage against internal super builds of TensorFlow dependencies.
• Implemented TensorFlow support for user-encrypted model persistence leveraging TensorFlow’s memory mapped filesystem.
• C++ development support for next generation, deep learning-based centerline extraction and lumen segmentation.
2014 — 2017
• Development and application of active shape model framework for cardiac chamber segmentation.
• Artifact detection in cardiac computed tomography angiography images (motion, blooming, misalignment) to support Production Image Quality Assessment process.
• Design and implementation of tools to parcellate Left Ventricular Myocardium segmentation according to AHA 17-segment model.
2011 — 2014
2011 — 2014
Redwood City, CA
• Product management, design, implementation, and testing of C#/WPF-based frontend intermediary between Production Workstation for review and correction of image analysis automation results and Production Backend.
• Workflow design for development of next generation Production Workstation.
• Participation in pre-commercial case processing for DEFACTO clinical study.
• Evaluation of coronary artery lesion segmentation and centerline extraction algorithms.
• Generation and curation of product design documentation for 510K FDA filing.
Education
Stanford University
Master of Science - MS
Texas A&M University