Author

Jayasai R. Rajagopal

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Preprint Sep 2026

OpenMASC: An Open-Source Pipeline for Cross-Trajectory Metal-Aware Sampling and Correction in Accelerated MRI

Metal implants corrupt MRI measurements throughout $k$-space, yet existing accelerated MRI methods assume clean data and most metal artifact reduction approaches assume fully sampled acquisitions. No public dataset provides paired $k$-space and images with and without metal for the same anatomy, and no framework jointl...

Zheng-Yi Lu, Ming Lu, Chong-Yu Qu et al. · 0 citations

#artificial intelligence Preprint Sep 2026

Task-Based CT Protocol Optimization Using Reinforcement Learning and Virtual Imaging Trials

The proposed framework can substantially reduce exhaustive protocol testing while enabling task-based, dose-aware protocol selection before the diagnostic scan and shows that the proposed framework can substantially reduce exhaustive protocol testing while enabling task-based, dose-aware protocol selection before the d...

J. Zou, David Fenwick, Vahid Tarokh et al. · 0 citations

Review Jul 2026

Efficient Computing for Medical Image Acquisition and Reconstruction

This chapter presents a unified computational perspective on medical image acquisition and reconstruction across CT, MRI, PET, and SPECT, and examines efficient computing considerations, including optimization algorithms, physics-aware forward operators, memory-efficient implementations, and parallel computing strategi...

Xiao Wang, Jayasai R. Rajagopal, Md Safaiat Hossain et al. · 0 citations