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Magnetic Resonance Image-Guided Radiotherapy (MRIgRT): A 4.5-Year Clinical Experience.
TLDR
The longest single-institution experience with MRIgRT is shared, focusing on trends and changes in use over the past 4.5 years, with applications such as ART for gastrointestinal cancers and accelerated partial breast irradiation for breast cancer have become dominant indications. Expand
Hybritech total and free prostate-specific antigen assays developed for the Beckman Coulter access automated chemiluminescent immunoassay system: a multicenter evaluation of analytical performance.
TLDR
Proficiency of the Access instruments and operators was demonstrated by assaying an identical panel of 18 human samples and calibration of individual instruments and accurate sample recovery from stored calibration curves were verified. Expand
TH-C-141-05: A Simulation Study to Investigate the Potential of Using Magnetic Resonance Elastography (MRE) to Differentiate Recurrent Tumor and Radiation Necrosis.
TLDR
The results show the possibility of using MRE to differentiate recurrent tumor from radiation necrosis, based on the difference between their moduli, and the potential of lesion delineation based on NRE at boundaries. Expand
SU‐E‐T‐43: The Effects of Image Resolution and Noise on the Gamma Dose Distribution Comparison Method for IMRT QA
Purpose: To investigate the effects of image noise and resolution on gamma analysis results for clinical IMRTquality assurance (QA) treatment plans. Methods: For each clinical IMRT plan, a hybrid QAExpand
SU-E-T-510: Calculation of High Resolution and Material-Specific Photon Energy Deposition Kernels.
TLDR
These high resolution and material-specific EDKs showed excellent agreement with the Mackie kernels, with the kernels providing more information about energy deposition close to the interaction site and resulted in smoother dose deposition functions due to the finer resolution and greater number of simulation histories. Expand
SU-F-T-135: A Retrospective Analysis of the Impact of Range Uncertainty in Brain Patients.
TLDR
A retrospective review shows moderate radiobiological impact of range uncertainty in passively scattered proton therapy with sporadic catastrophe and linear regression analysis on the statistical data indicates a systematic deviation of gEUD from treatment planning in the light of range uncertainties. Expand
TU-AB-BRA-10: Treatment of Gastric MALT Lymphoma Utilizing a Magnetic Resonance Image-Guided Radiation Therapy (MR-IGRT) System: Evaluation of Gating Feasibility.
TLDR
The stomach was observed to move relatively uniformly throughout, with maximum extent of motion closer to where most MRI systems have the best spatial integrity (near isocenter), which implies that gating on a plane located closer to MRI isoc center will provide the more conservative scenario. Expand
WE-D-18A-01: Evaluation of Three Commercial Metal Artifact Reduction Methods for CT Simulations in Radiation Therapy Treatment Planning.
TLDR
The MAR methods were successful for large metal implants in a homogeneous environment (hip prosthesis) but were not successful for the more complicated case of dental artifacts. Expand
SU-D-207A-04: Use of Gradient Echo Plural Contrast Imaging (GEPCI) in MR-Guided Radiation Therapy: A Feasibility Study Targeting Brain Treatment.
TLDR
The GEPCI technique was implemented in MRI-simulation and in MR-IGRT system for radiation therapy and it was demonstrated that it is feasible to adopt this technique in radiotherapy for structural delineation. Expand
TH-CD-202-04: Evaluation of Virtual Non-Contrast Images From a Novel Split-Filter Dual-Energy CT Technique.
TLDR
A novel split-filter single-source technique of superior temporal resolution against an established sequential-scan technique, to remove iodine contrast from images with minimal impact on CT number accuracy is compared. Expand
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