Survival and Recurrence Outcomes Following Adjuvant Radiotherapy for Grade 2 Intracranial Meningiomas: 13-Year Experience in a Tertiary-Care Center.

Objective: We sought to evaluate overall survival (OS) and local recurrence (LR) in patients with grade 2 meningiomas treated with adjuvant radiotherapy compared to surgery alone at time of diagnosis.

Methods: All patients at the authors' institution between 2007 and 2020 were retrospectively reviewed. OS, LR, and treatment toxicities were assessed.

Four-dimensional dose calculations for dynamic tumour tracking with a gimbal-mounted linear accelerator.

Purpose: In this study we present a novel method for re-calculating a treatment plan on different respiratory phases by accurately modeling the panning and tilting beam motion during DTT (the "rotation method"). This method is used to re-calculate the dose distribution of a plan on multiple breathing phases to accurately assess the dosimetry.

Methods: sIMRT plans were optimized on a breath hold computed tomography (CT) image taken at exhale (BH ) for 10 previous liver stereotactic ablative radiotherapy patients.

Transanal Local Excision for Patients With Rectal Cancer: Can Radiation Compensate for What Is Perceived as a Nondefinitive Surgical Approach?

Background: Total mesorectal excision has long been the standard of care for patients with rectal cancer. However, in select patients, local excision is an appropriate alternative option. The role of adjuvant radiation therapy in patients treated with local excision is controversial and evidence is lacking.