All conference submissions

To evaluate the imaging performance, Hounsfield Unit (HU) accuracy, and proton‑dose calculation implications of three newly released Varian ProBeam 360⁰ CBCT reconstruction algorithms—iCBCT, iCBCT Acuros, and iCBCT MAR Adaptive—c...

Deep learning-based organ contouring is essential for optimizing the MR-guided adaptive radiotherapy (MRgART) workflow. However, online contouring remains challenging because of interfractional anatomical variations. This study d...

Head and neck cancers (HNC) pose unique challenges due to anatomical complexity and setup uncertainties during radiotherapy. In resource-limited settings like Bangladesh, standardized planning target volume (PTV) margins may inad...

Non-coplanar arc irradiation is widely used in stereotactic radiotherapy to achieve highly conformal dose distributions for small targets. For patient-specific quality assurance (PSQA), detector performance must remain stable und...

To develop and characterize plastic scintillator sheets for in-vivo dosimetry to measure entrance dose distributions for therapeutic photon, electron, and proton beams.

Four-dimensional cone-beam computed tomography (4D-CBCT) provides respiratory motion–resolved imaging for image-guided radiotherapy (IGRT) in thoracic treatments but may increase imaging dose compared with conventional three-dime...

The novel Varian TrueBeam HyperSight-CBCT (HS-CBCT) aims to overcome image non-uniformity and artifacts in conventional CBCT. While radiomic feature repeatability has been investigated for conventional CBCT, the performance of HS...

RapidPlan, a knowledge-based treatment planning tool integrated in Varian’s Eclipse treatment planning system, has been shown to improve radiotherapy planning efficiency and consistency. The aim of this study is to evaluate the p...

Online adaptive stereotactic body radiation therapy (SBRT) enables daily replanning to mitigate anatomic variation but increases treatment time and clinical workload. For left adrenal tumors, adaptive SBRT is frequently assigned...

To evaluate the impact of respiratory motion on dose distribution and spatial modulation in VMAT-based Lattice Spatially Fractionated Radiotherapy(Lattice-SFRT), and to evaluate the stability of peak–valley dose characteristics u...

AAPM WGTG51 Report 374 emphasizes the importance of field barometer cross-calibration versus a reference barometer prior to reference dosimetry measurements. This work evaluates the validity of single-point calibration across alt...

To evaluate the robustness of spot-scanning proton arc therapy (SPArc) to stochastic spot-wise monitor unit (MU) delivery errors.

CBCT-based online adaptive radiotherapy (CBCT-oART) enables daily plan adaptation but is sensitive to intra-fraction motion during extended adaptive workflows. This study evaluates breath-hold (BH) motion stability and workflow i...

To evaluate the biological effect of Spatially Fractionated Radiation Therapy (SFRT) using Gamma Knife (GK) or volumetric-modulated arc therapy (VMAT) with multiple sphere sizes in a lattice arrangement.

Craniospinal irradiation (CSI) can be delivered using a multi-isocentre technique. This requires a time-consuming alignment process using kV orthogonal imaging followed by cone-beam CT (CBCT) to ensure alignment accuracy across m...

This work investigates use of the IMR algorithm in 4DCT for potential dose reduction in patients.

To evaluate the reproducibility of a PET/CT QA test for assessing spatial resolution and image registration.

Accurate small‑field dosimetry on MR‑linacs remains challenging due to magnetic‑field–induced dose perturbations and steep dose gradients. In this study, the performance of a newly developed unshielded silicon diode has been eval...

To evaluate the agreement between Varian RapidPlanPT DVH estimates and clinically delivered plans using an independent validation set for head and neck cancer (HNC) treated with proton radiation therapy.

To evaluate the dosimetric accuracy of SunCHECK, a calculation-based IMRT patient specific quality assurance (PSQA) program, when applied to VMAT PSQA for the Halcyon LINAC.

To assess the feasibility of using radiomics features from dynamic FET imaging parameterizations as potential biomarkers of glioblastoma (GBM) treatment response by evaluating the repeatability of parametric-map radiomic features...

High-dose-rate (HDR, >40 Gy/s) irradiation can enhance the tolerance of healthy tissue. To investigate water radiolysis in proton irradiations (IBA Cyclone 70 XP, Nantes, France) for dose rates ranging from 0.2 Gy/s to 115 Gy/s,...

To develop and validate the first open-source, CdTe-based photon-counting CT (PCCT) simulation framework using CATsim. The goal was to emulate clinical PCCT performance and quantitatively compare simulated versus experimental iod...

Proton therapy shielding design typically assumes that protons stop within the patient. However, modern treatment planning optimization strategies may introduce high-energy proton transmission (“shoot-through”) spots that exit th...