Library
1897 entries curated across talks and posters.
Automation and geometric verification tools are increasingly important in radiotherapy for non-coplanar stereotactic treatments. This study implements a patient-specific 3D modeling–based method to generate gantry–couch collision...
Motion-related effects remain a critical source of uncertainty in proton and carbon ion therapy. Sharp dose gradients, combined with the inherent sensitivity of the particle range, make dose delivery particularly susceptible to t...
To evaluate the impact of four-dimensional CT (4D-CT) reconstruction methods on lung tumor volume estimation and apparent tissue density under respiratory motion using dynamic phantoms with diverse geometries.
Independent Monte Carlo (MC) dose calculation of clinical pencil beam scanning (PBS) proton treatment plans requires conversion of beam spot monitor units (MU) into the number of protons transported in MC simulations. This conver...
Monte Carlo (MC) methods are widely regarded as the gold standard for radiotherapy dose calculation; however, high computational cost can limit routine clinical application. This study evaluated two jaw-interaction–based event-co...
To develop and validate a combined model, based on multi-sequence magnetic resonance imaging (MRI), integrating immune checkpoint molecular markers and multiple independent prognostic factors, to predict overall survival (OS) in...
The spread-out Bragg peak (SOBP) technique uses ridge filters to broaden the depth-dose profile, producing a dose distribution similar to a single-field-uniform(SFU) approach. In contrast, the single-energy pristine Bragg peak(SE...
This study aimed to enhance safety during system upgrades of radiation therapy equipment by developing a comprehensive risk management framework that incorporates Failure Mode and Effects Analysis (FMEA) and Quality Indicators (Q...
High-dose-rate (HDR) brachytherapy (BT) is characterised by steep dose gradients and high doses delivered per treatment fraction in a short time. These features, together with the numerous steps involved in treatment delivery, ma...
Monte Carlo (MC) methods are widely used for proton therapy dose calculation due to their high physical accuracy, but their stochastic nature results in statistical noise and long computation times, particularly for high-resoluti...
To evaluate the planning feasibility of spiral volumetric modulated arc therapy (SVMAT) for preserving ovarian function in cervical cancer radiotherapy. The SVMAT technique, which integrates longitudinal couch movement, combines...
High linear energy transfer (LET) IMNT faces practical delivery constraints: low output rates (~55 MU/min), manual gantry and couch rotations (~3-5 min/field), and mandatory wait times (~1-2 min/field) for neutron activation conc...
Auto-contouring (AC) of the pelvic nodal Clinical Target Volume (CTV) for prostate cancer radiation therapy can reduce contouring time and inter-physician variability. A vendor tool provides two AC models based on different conto...
Automatic intensity-based CBCT registration for initial spine treatment setup is challenging due to the similar appearance of vertebral bodies (VBs), which can lead to misalignment. This study evaluated the feasibility of using A...
Leptomeningeal metastases (LM), or the spread of cancer to the cerebrospinal fluid, is a neurologically devastating manifestation of cancer. Without treatment survival is limited to months, and few effective therapies exist. A ra...
We evaluate the performance of a 4-channel plastic scintillator for real-time dose monitoring during VMAT total body irradiations (TBI).
To compare dosimetry audit results for 6 MV flattening-filter-free (FFF) photon beams between conventional C-arm linear accelerators (linacs) and a ring-based architecture (O-ring) linacs using IAEA/WHO postal dosimetry audit res...
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...
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...