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PURPOSE To describe a TBI technique designed within the limits of a small-room geometry and its clinical implementation. METHODS Following construction of the universal treatment devices, including the double-wedge, beam spoiler table, and patient support table, commissioning consists of measurements to determine the output, tissue-phantom ratio,(More)
PURPOSE Manual catheter recognition remains a time-consuming aspect of high-dose-rate brachytherapy (HDR) treatment planning. In this work, a novel catheter lumen recognition algorithm was created for accurate and rapid digitization. METHODS MatLab v8.5 was used to create the catheter recognition algorithm. Initially, the algorithm searches the patient CT(More)
PURPOSE To explore differences in the patterns of dose spillage to normal brain in stereotactic radiosurgery when using the Gamma Knife Perfexion (GKP) versus single-isocenter volumetric modulated arc radiosurgery (VMAS) to treat multiple metastases. METHODS Radiosurgery plans were generated on five T1-weighted MRI data sets for delivery with a Gamma(More)
In this paper, we study the problem of emulating 7T steps of an NWc-node guest network on an NH-node host network.-We call an emulation work-presenwig if the time required by the * host, TH, is 0(TGNG/NVjI because then both the-guest and host networks perform the same total work, e(ToN,), to within a constant factor. We say that an emulation is real-time if(More)
PURPOSE Tomotherapy users are not allowed to modify the beam-data or parameters for beam modeling in Tomotherapy treatment planning system(TPS).The gold beam-data in TPS for modeling and commissioning was measured with TomoScannerTM system(TS).This study investigates the use of the Blue Phantom HelixTM(BPH) as an alternative scanner to establish a benchmark(More)
PURPOSE Failure to model the treatment couch during VMAT QA planar dose calculation may Result in discrepancies between measured and calculated dose. These discrepancies are due to beam attenuation by the treatment couch that is not included in dose calculation. This work evaluates effects of accounting for this attenuation on patient specific VMAT QA(More)
PURPOSE We performed a comparative planning study among High Dose Rate (HDR) brachytherapy, superficial electrons, Volume Modulated Arc Therapy (VMAT), and Helical IMRT (Tomotherapy) for squamous cell carcinoma of the abdominal wall with consideration for the underlining bowel. METHODS A 69-year old female presented with squamous cell carcinoma protruding(More)
PURPOSE To investigate a single high-definition (HD) camera of 3D realtime surface system (AlignRT_1HD, VisionRT, Inc.) as the potential alternative to the standard configuration of the system with three charge-coupled device (CCD) cameras (AlignRT_3C) and to evaluate the localization accuracy of AlignRT_1HD compared to AlignRT_3C. METHODS Both AlignRT_3C(More)