J. L. Gunter, M. A. Bernstein, B. J. Borowski, J. P. Felmlee, D. J. Blezek, R. P. Mallozzi, J. R. Levy, N. Schuff, C. R. Jack, Jr. 1 Mayo Clinic and Foundation, Rochester, MN, United States, GE Global Research, Niskayuna, NY, United States, The Phantom Laboratory, Salem, NY, United States, UC San Francisco, San Francisco, CA, United States Introduction: The Alzheimer's Disease Neuroimaging Init...

background: this study assessed the clinical usefulness of the solid phantom, which may compensate for the disadvantages of the water phantom, by comparing the radiological doses between the two depending on their depths. materials and methods: the experimental equipment used was a linear accelerator for medical use, water phantom, solid phantom, farmer type ion chamber and electrometer. the di...

A new grid-based Boltzmann equation solver, Acuros, was developed specifically for performing accurate and rapid radiotherapy dose calculations. In this study we benchmarked its performance against Monte Carlo for 6 and 18 MV photon beams in heterogeneous media. Acuros solves the coupled Boltzmann transport equations for neutral and charged particles on a locally adaptive Cartesian grid. The Ac...

Helmholtz-Center DresdenRossendorf, Institute of Radiopharmaceutical Cancer Research, PET Center, Dresden, Germany Recently, we have proposed a method for on-the-fly system matrix computation where the tube-of-response (TOR) is approximated as a cylinder with constant density (TORCD) and the cubic voxels are replaced by spheres. We could show that with this model the PET image quality can be no...

A new MRI simulator has been developed that generates images of realistic objects for arbitrary pulse sequences executed in the presence of static field inhomogeneities, including those due to magnetic susceptibility, variations in the applied field, and chemical shift. In contrast to previous simulators, this system generates object-specific inhomogeneity patterns from first principles and pro...

As clinical trials of Neutron Capture Therapy (NCT) are initiated in the U.S. and other countries, new treatment planning codes are being developed to calculate detailed dose distributions in patient-specific models. The thorough evaluation and comparison of treatment planning codes is a critical step toward the eventual standardization of dosimetry, which, in turn, is an essential element for ...

PURPOSE Due to the high conformity of carbon ion therapy, unpredictable changes in the patient's geometry or deviations from the planned beam properties can result in changes of the dose distribution. PET has been used successfully to monitor the actual dose distribution in the patient. However, it suffers from biological washout processes and low detection efficiency. The purpose of this contr...

Introduction To study the cortical/subcortical diffusivity quantified by the apparent diffusion coefficient (ADC) in neurological and neurodegenerative diseases, brain tissue segmentation methods for diffusion tensor magnetic resonance imaging (DT-MRI) data have been proposed, which utilize registration between segmented structural MRI and DT-MRI [1-3]. Recently, another method has been propose...

how to cite this article: poor zamany nejat kermany m, modirian e, soroush m, masoumi m, hosseini m. phantom limb sensation (pls) and phantom limb pain (plp) among young landmine amputees. iran j child neurol. summer 2016; 10(3):42-47.   abstract objective to determine the frequency of phantom limb sensation (pls) and phantom limb pain (plp) in children and young adults suffering landmine-relat...