Results 231 to 240 of about 1,350,874 (376)
Abstract Purpose In radiation oncology, the integration and registration of multiple imaging modalities is a crucial aspect of the diagnosis and treatment planning process. These images are often inherently registered, a useful feature in most cases, but possibly a hindrance when registration modifications are required.
Brian M. Anderson, Casey Bojechko
wiley +1 more source
Estimating the resolvent of elliptic second-order partial differential operators
Sharp estimates for the resolvent of a linear elliptic second-order partial differential operator under Dirichlet homogeneous boundary conditions are derived via a symmetrization technique.
Dimitri Mugnai, Giorgio Talenti
doaj
Threshold approximations with corrector for the resolvent of a factorized selfadjoint operator family [PDF]
M. Sh. Birman, T. A. Suslina
openalex +1 more source
Abstract Background Tumor segmentation is crucial for lung disease diagnosis and treatment. Most existing deep learning‐based automatic segmentation methods rely on manually annotated data for network training. Purpose This study aims to develop an unsupervised tumor segmentation network smic‐GAN by using a similarity‐driven generative adversarial ...
Chengyijue Fang+2 more
wiley +1 more source
Schrödinger operators on the half line: Resolvent expansions and the Fermi golden rule at thresholds [PDF]
Arne Jensen, G. Nenciu
openalex +1 more source
Abstract Background The aim of this study was to thoroughly analyze the reproducibility of radiomics feature extraction across three Image Biomarker Standardization Initiative (IBSI)‐compliant platforms using a digital phantom for benchmarking. It uncovers high consistency among common features while also pointing out the necessity for standardization ...
Han‐Back Shin+5 more
wiley +1 more source
Weighted resolvent estimates for Volterra operators on unbounded intervals
Peter Rejto, Mario Taboada
openalex +2 more sources
Abstract The establishment of guidelines and curriculum standards for medical physics residency training is a critical component of setting expectations and competencies for the profession. Since the last publication of these standards, residency training has become integrated into the eligibility criteria for most medical physics certification bodies.
Jonathon A. Nye+16 more
wiley +1 more source
Effective Behaviour of Critical-Contrast PDEs: Micro-Resonances, Frequency Conversion, and Time Dispersive Properties. II. [PDF]
Cherednichenko K+3 more
europepmc +1 more source
Abstract Purpose This study aims to evaluate how different gantry angles, breathing rates (BPM), cine image speeds, and tracking algorithms affect beam on/off latency and the subsequent impact on target dose for a 0.35T MR‐Linac with a 6 MV FFF beam.
Mateb Al Khalifa+4 more
wiley +1 more source