Library
2869 entries curated across talks and posters.
Intrafraction imaging is a useful tool to provide information within the fraction on the patient positioning. It allows for adjustment for any movement that may occur during treatment. The novel PETLINAC is equipped with superior...
In the process to calculate the delivered Y-90 (Yttrium-90) dosage, there is measurement uncertainty associated with each step. All these uncertainties can be calculated with the knowledge of the dose calibrator and survey meter...
To quantify the dose deposition structure and production of secondary radiation caused by neutron capture on a gadolinium nanoparticle and evaluate the comparison to that caused by an incident photon beam.
Prior to clinical launch of the world’s first installation of MEVION S250-FIT combined with Marie® system we evaluated anatomical and dosimetric differences between conventional photon-based supine treatments and proton-based upr...
To quantify the geometric localization and dosimetric accuracy of a novel 3D surface-guided radiotherapy (SGRT) system (LAP LUNA) using an end-to-end anthropomorphic phantom test.
Beam matching allows RT delivery using a shared beam model for identical linear accelerator models. However, LINACs of differing models may also match depending on specific LINAC performance. One such configuration was analyzed i...
Prostate SBRT requires an expansion on the CTV to create the PTV. There is discussion over how large this expansion should be to adequately account for patient motion during treatment. A 3mm symmetric expansion of the CTV is bene...
Ransomware keeps being a major threat to health care IT facilities including radiotherapy (RT). Such attacks may cause prolonged loss of access to the whole RT environment. To minimize the clinical impacts, we present here our im...
It is recommended that a significant number of the seed sources for low-dose-rate permanent brachytherapy (BT) be assayed and their source strengths validated against those stated by the manufacturer before seed implantation. The...
To introduce and validate the Nabaa Efficiency Index (NEI), a unified, dimensionless metric that integrates geometric conformity and dose-energy efficiency for evaluating plan quality across stereotactic radiosurgery (SRS/SBRT) a...
Post-therapy quantitative imaging is essential for dosimetry-guided precision cancer treatment in theranostics. Although SPECT is the typical choice for post-therapy quantification, its routine clinical use is constrained by scan...
Radiotherapy for lung cancer is challenged by respiratory motion and inter-fractional anatomical variations. The respiratory motion management based on tumor tracking can reduce the discrepancies between planned and absorbed dose...
To develop a phantom for evaluating CT gout identification and determine phantom longevity.
Due to the fact that the CT value varies non-linearly with the change of tube voltage, traditional 120kVp QCT models are incompatible to CT scans with different tube voltage. In this work, we propose and validate a PL-QCT BMD cal...
To primarily evaluate setup accuracy and positioning stability of SGRT combined with CBCT in lung SBRT, with secondary assessments of target margin optimization, treatment safety, efficiency, and patient satisfaction.
To physically model the presence of CT/MR-compatible vaginal applicators in HDR dose calculations and accurately quantify the heterogeneity effects on main DVH parameters (D90, D100, V100, and V150).
Accurate dose accumulation in cervical cancer radiotherapy combining external-beam radiotherapy (EBRT) and High-Dose-Rate brachytherapy (HDR) requires reliable Deformable-Image-Registration (DIR) between two drastically different...
To apply a proton procedure of optimizing spot weight and Ridge Filter (RF) to single-energy carbon pencil beam and evaluate it in a water phantom with a square-shape target in the center (prescription dose 50 Gy).
Many of the mathematical principles used in medical physics such as geometric reasoning, exponential decay, iterative improvement, and basic probability originate from concepts introduced in high school. This study illustrates ho...
To provide an early assessment of the use and usefulness of a new helical tomotherapy online adaptation emulator tool.
To develop a quantitative plan quality scoring (PQS) tool for evaluation of left-sided breast radiotherapy plans and to compare performance across four platforms.
To evaluate a quantitative SGRT-based workflow for pre-imaging DIBH amplitude verification and quantify its impact on setup precision by comparing residual setup errors across the VRT, LNG, and LAT axes.
To share our experience with the acceptance testing of nine myQA Daily devices (IBA) and to evaluate the relevance of these tests despite the system being widely used clinically in other hospitals.
Recently, a modern total body Irradiation method using volumetric-modulated arc technique (VMAT-TBI) has gained popularity. Although many advantages are associated with VMAT-TBI but the disadvantages such as time-consuming planni...