Patient‐specific automated multi‐class anatomical motion tracking on real‐time cine MR images using deep learning techniques

Real-time tumor tracking for magnetic resonance-guided radiotherapy using label-efficient foundation model adaptation

Background and Purpose: Real-time tumor tracking on cine magnetic resonance imaging (cine-MRI) enables intra-fraction motion management in magnetic resonance-guided radiotherapy. Pipelines often rely on deformable registration or template matching to propagate contours, which can degrade under non-rigid motion and cine...

Attention-Guided TransMorph for Real-Time Tumor Tracking in Cine-MRI.

Magnetic Resonance Imaging (MRI) is a key modality in cancer treatment, providing high soft tissue contrast for the visualization of tumors and internal anatomy. Radiotherapy, which is widely used in treatments, requires precise tumor segmentation to ensure targeting the true tumor and minimizing radiation exposure to...

Contour‐regulated registration framework for Liver CT perfusion images

Liver computed tomography perfusion (CTp) imaging enables quantitative assessment of vascular dynamics but is highly susceptible to motion‐induced artifacts arising from breath‐hold variability and involuntary patient motion. These effects cause different portions of the liver to fall within the imaging field of view a...

Current Medical Imaging

Inverse‐consistent deformable image registration to propagate biomechanical constraints for online adaptive radiotherapy

A deformable image registration (DIR) framework is developed that integrates inverse consistency with local biomechanical constraints, enabling tissue‐specific motion modeling using contours from only a single image volume, yielding anatomically plausible motion estimates for ART workflows.

Deep learning-based segmentation of non-perfused volume after magnetic resonance guided high-intensity focused ultrasound therapies: a retrospective evaluation on clinical patient data.

INTRODUCTION Non-perfused volume (NPV) is a key imaging biomarker for treatment efficacy in MR -guided high-intensity focused ultrasound (MR-HIFU). In uterine fibroids therapies, the NPV ratio is strongly associated with clinical outcomes and long-term efficacy. We developed and clinically evaluated a deep learning-bas...