Seungjong Oh, PhD

To validate the Exradin W2 plastic scintillator for measuring beam profiles in Leksell Gamma Knife (LGK) quality assurance and to compare its characteristics against MicroDiamond detector measurements as a filmless QA alternative.

This work aimed to verify the dosimetric accuracy of a 0.35T MRI Linac using all five available tracking algorithms (Standard, Rigid, Small Mobile, Large Deforming, Complex Mobile) when tracking multiple targets simultaneously.

Onboard real-time MRI imaging in MR-guided radiotherapy (MRgRT) offers exceptional benefits for treating abdominothoracic cancers. However, gated delivery can be prolonged due to irregular patient breathing, which may diminish these advantages. We addressed t...

The Stop-Scan-Adapt (SSA) feature introduced with the MRIdian A3i upgrade enables intra-fractional adaptation during online MR-guided adaptive radiotherapy (ART) through re-optimization without patient repositioning. While SSA efficiently responds to intra-fr...

Gamma Knife radiosurgery (GKRS) has undergone multiple technological transitions over the past two decades. This study evaluates long-term utilization trends at a single academic institution to assess whether GKRS has remained a durable and adaptable treatmen...