Robabeh Rahimi, PhD

Lattice radiotherapy (LRT) produces steep vertex–valley gradients, making 2D gamma-based QA insufficient for clinically relevant 3D dose–volume endpoints. We propose an MRI polymer gel–based 3D DVH verification workflow for VMAT-LRT and assess feasibility and...

In vivo dosimetry is essential for treatment verification and patient safety. Although commercial radiochromic film systems are established for photons, proton therapy adds complexity because film response is energy dependent and clinical beams are typically...

Proton pencil beam scanning (PBS) offers excellent dose conformity but remains limited by delivery inefficiency associated with energy layer switching time. A programmable energy modulation filter (PEMF) was developed to enable single-energy proton PBS delive...

This study proposes a vertex-wise Isodose Structure (IS)-based framework to evaluate the 3D geometric accuracy of Lattice Radiotherapy (LRT) dose distributions by decoupling geometric misalignment from dose-dependent volumetric distortion, enabling vertex-spe...