Particle beam treatment allows accurate dose delivery onto carcinogen tissue. The reachable accuracy is limited by patient alignment errors relative to the beam source. Errors can be corrected manually or by automatic comparison of two X-ray images to a CT-scan but correction mostly does not cover all degrees of freedom (DoF). In this contribution we present a solution that makes use of one X-r...

Introduction: Currently, treatment planning is done on the basis of CT (computed tomography) images from which a patient density matrix is determined. In conventional treatment planning the dose is calculated assuming patients are composed of water, at best considering electron densities. In comparison to that, in Monte Carlo Treatment Planning (MCTP), the CT image is segmented into a few mater...

PURPOSE To compare bimedial rectus muscle recession (BMRR; 7-8 mm) and bimedial rectus muscle elongation (BMRE; 6.5-9 mm) for the surgical treatment of large-angle infantile esotropia (ET; ≥70 prism diopters [PD]). PATIENTS AND METHODS Twenty-four patients with large-angle infantile ET were divided into 2 groups; group A (n=12) underwent BMRR and group B (n=12) underwent BMRE. All patients re...

OBJECTIVE To assess the safety and efficacy of the 308-nm excimer laser in pigment correction of hypopigmented scars and striae alba. DESIGN Institutional review board-approved randomized controlled trial. SETTING Private research center. PATIENTS Volunteer sample of 31 adult subjects with hypopigmented scars or striae alba distributed on the face, torso, or extremities. INTERVENTIONS L...

PURPOSE To describe the commissioning of Aluminum Oxide Optically Stimulated Luminescent Dosimeters (OSLD) for the use in Carbon beam remote dosimetry for centers participating in NCI-funded cooperative group clinical trials. METHODS As Carbon therapy centers express interest in participating in cooperative group clinical trials, the Imaging and Radiation Oncology Core Group (IROC) Houston QA...

BACKGROUND Polypharmacy for schizophrenia treatment is not justified by the available clinical evidence. We evaluated a treatment reduction approach that reduces the dose and number of antipsychotic medications simultaneously prescribed to patients. METHODS In a randomized open study of the Safe Correction of Antipsychotic Polypharmacy and High-Dose Prescriptions program funded by the Japanes...

BACKGROUND To analyse the frequency of re-planning and its variability dependent on the IGRT correction strategy and on the modification of the dosimetric criteria for re-planning for the spinal cord in head and neck IG-IMRT. METHODS Daily kV-control-CTs of six head and neck patients (=175 CTs) were analysed. All volumes of interest were re-contoured using deformable image registration. Three...

We establish the existence of Adams operations on the members of a filtration of K-theory which is defined using products of projective lines. We also show that this filtration induces the gamma filtration on the rational K-groups of a smooth variety over a field of characteristic zero.

Introduction: Accuboost is a HDR brachytherapy system in early stages breast cancer treatment. This device provides a completely noninvasive procedure with parallel-opposed radiation from two immobilizing peripheral applicators that caused it a preferred option of modalities to choose. In most commercial treatment planning systems, tissues are considered as a simple water phan...