Library
161 entries curated across talks and posters.
To provide an early assessment of the use and usefulness of a new helical tomotherapy online adaptation emulator tool.
To investigate whether the apparent diffusion coefficient (ADC) from diffusion-weighted imaging (DWI) acquired at a 0.35T MR-Linac can determine prostate and intraprostatic lesion changes caused by adaptive radiotherapy performed...
MR-linacs enable online adaptive radiotherapy, which increases dose conformality and thus potentially improves therapeutic ratios. A recurring drawback with respect to C-arm linacs is the lack of VMAT leading to decreased efficie...
Patients who undergo stereotactic body radiation therapy (SBRT) for lung cancer can present with contraindications, making it difficult to achieve tumoricidal coverage and adequate organs-at-risk (OAR) sparing. MRI guided-adaptiv...
Dose tracking and image review are paramount in offline adaptive radiotherapy (ART); observable changes in patient anatomy, setup, and dose can trigger plan modifications with the intent of improving clinical outcomes. Radformati...
Standard image-guided radiotherapy(IGRT) approaches for muscle invasive bladder cancer(MIBC) require large target margins due to bladder fill variability, inevitably resulting in increased organ-at-risk(OAR) doses and toxicity ri...
We aim to develop and evaluate a template for Ethos v1.1 online adaptive planning using the intelligent optimization engine (IOE) for hypo-fractionated ultra-central lung IMRT (60Gy in 8 fractions). The template includes a dose-b...
Adaptive radiotherapy (ART) is designed to improve target coverage and normal tissue sparing compared with non-ART treatment. While in prostate SBRT differences between adaptive and non-adaptive plans are often modest, certain fr...
To quantify the dosimetric impact of pelvic bone electron density (ED) assignment on dose accuracy and target coverage in an adapt-to-shape (ATS) MR-guided adaptive radiotherapy (MRgRT) workflow on a 1.5 T MR-Linac for prostate s...
To validate an online adaptive radiotherapy (oART) workflow for a C-arm linear accelerator (LINAC) equipped with HyperSight CBCT using Imaging and Radiation Oncology Core (IROC) anthropomorphic phantoms.
MRI guided Adaptive Radiation Therapy (MRgART) allows for daily plan adaptation to the patient’s anatomy. This is achieved by imaging the patient before each fraction, editing the contours to the new anatomy, and adapting the pla...
To compare the traditional Computed Tomography Dose Index (CTDI) and the Cone-Beam-Dose-Index (CBDI), an alternative metric that quantifies the average dose in the central region of a cone-beam CT (CBCT) scan, for imaging dose me...
Inter-fraction variations in bowel and bladder filling during rectal cancer radiotherapy can cause positional and dosimetric deviations, potentially compromising treatment accuracy. This study aimed to evaluate the morphological...
Accelerated partial breast irradiation (APBI) combined with online adaptive radiotherapy (OART) offers precise treatment of early-stage breast cancer, but inter-observer variability (IOV) in target delineation must be accounted f...
The Varian Ethos intelligent optimization engine (IOE) automates the generation of non-overlapping optimization structures and resolves planning conflicts via a prioritized goal hierarchy. While designed to minimize manual interv...
Unanticipated anatomical and HU changes following CT simulation often necessitate patient resimulation, potentially delaying treatment. This case report describes the use of online CBCT-guided adaptive radiotherapy to manage post...
To characterize how well voluntary breath hold during imaging reduces motion-induced artifacts in HyperSight cone-beam CT (CBCT) images that make it challenging to provide adaptive radiotherapy of moving targets in the lung on th...
Cycle generative adversarial network (GAN) has a difficulty in maintaining the structural integrity in a synthesized image for complex organs and tissues. In this study, we proposed a CycleGAN including multi-scale blocks and att...
We investigate the feasibility of using daily setup free-breathing cone-beam CT (CBCT) as a functional imaging modality to generate longitudinal ventilation maps throughout the treatment course, with the goal of detecting emergin...
In lung cancer adaptive radiation therapy (ART), respiratory motion and interfractional anatomical variations—including changes in tumor size and normal tissue anatomy—can affect the efficacy of radiation treatment. Acquiring hig...
Automation in external beam radiotherapy chart checks improves standardization, efficiency, and error reduction. Our academic institution, consisting of approximately 200 users over 7 campuses, partnered with a vendor to integrat...
Accurate tissue characterization is critical for adaptive proton therapy. This study evaluates the performance of relative electron density (RED) and stopping power ratios (SPR) predicted by virtual monoenergetic images (VMIs) de...
Lung cancer is a leading global malignancy with high mortality. Radiotherapy is a critical treatment; however, current planning often suffers from subjective dose settings and side effects. This study aims to use a Conditional Ge...
Direct-to-Unit (simulation-omitted) radiotherapy enables treatment planning directly from diagnostic imaging, eliminating CT simulation and supporting same-day treatment for time-sensitive cases. These workflows rely on adaptive...