Introduction Polymer gel dosimeters offer a practical solution to 3D dose verification for conventional radiotherapy as well as intensity-modulated and stereotactic radiotherapy. In this study, EGSnrc calculated and PAGAT polymer gel dosimeter measured dose profiles from single shot irradiation with 18 mm collimator of Gamma Knife in homogeneous and inhomogeneous phantoms were compared with eac...

Submitted Volumetric modulated arc therapy for stereotactic body radiotherapy: Planning considerations, delivery accuracy and efficiency

The Vidar use with r designed t work in th compared reported f resolution scattering artifact of eliminated the Red L the availa scanner y linear acc INTERNATIONAL SPECIALTY PRODUCTS 1361 Alps Road Wayne NJ 07470∙ Tel: 973-628-4000 rmance of the Vidar Red LED Dosimetry Pro AdvantageTM: r optimized for use with GAFCHROMIC EBT Dosimetry Film. avid F. Lewis, Ph.D., Senior Director, Advanced Materi...

This study details the generation, verification, and implementation of a treatment planning system (TPS) couch top model for patient support system used in conjunction with a dedicated stereotactic linear accelerator. Couch top model was created within the TPS using CT simulation images of the kVue Calpyso-compatible couchtop (with rails). Verification measurements were compared to TPS dose pre...

PURPOSE Despite numerous advantages of radiochromic film dosimeter (high spatial resolution, near tissue equivalence, low energy dependence) to measure a relative dose distribution with film, one needs to first measure an absolute dose (following previously established reference dosimetry protocol) and then convert measured absolute dose values into relative doses. In this work, we present resu...

The aim of this study was to assess survival and prognostic factors of 98 consecutive patients with unresectable glioblastoma multiforme (GBM) after stereotactic biopsy. Patients were diagnosed between 1993 and 1998, and the treatment modality subsequent to stereotactic biopsy was determined by the year of diagnosis. Before 1995, patients did not receive further specific therapy after stereotac...

Thirty five patients presenting with epilepsy alone and non-enhancing low-density lesion on the CT scan underwent a computer-assisted CT-guided stereotactic biopsy with stereotactic angiographic control. There was no mortality or morbidity in this series and the diagnostic yield was 97%. Thirty four patients had low grade intra-axial neoplasms. After an estimation of the pathological extent of ...