Results 51 to 60 of about 2,580,325 (404)

Image quality comparisons of coil setups in 3T MRI for brain and head and neck radiotherapy simulations

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose MRI is increasingly used for brain and head and neck radiotherapy treatment planning due to its superior soft tissue contrast. Flexible array coils can be arranged to encompass treatment immobilization devices, which do not fit in diagnostic head/neck coils. Selecting a flexible coil arrangement to replace a diagnostic coil should rely
Evangelia Kaza, Jeffrey P. Guenette, Christian V. Guthier, Steven Hatch, Alexander Marques, Lisa Singer, Jonathan D. Schoenfeld   +6 more
wiley   +1 more source

Navigated intraoperative ultrasonography for brain tumors: a pictorial essay on the technique, its utility, and its benefits in neuro-oncology [PDF]

Ultrasonography, 2020
Intraoperative imaging has become one of the most important adjuncts in neurosurgery, especially in the surgical treatment of intra-axial tumors.
Ujwal Yeole, Vikas Singh, Ajit Mishra, Salman Shaikh, Prakash Shetty, Aliasgar Moiyadi   +5 more
doaj   +1 more source

Evaluation of intrafraction couch shifts for proton treatment delivery in head‐and‐neck cancer patients: Toward optimal imaging frequency

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose Treatment planning for head‐and‐neck (H&N) cancer, in particular oropharynx, nasopharynx, and paranasal sinus cases, at our center requires noncoplanar proton beams due to the complexity of the anatomy and target location. Targeting accuracy for all beams is carefully evaluated by using image guidance before delivering proton beam ...
Nrusingh C. Biswal, Dario B. Rodrigues, Weiguang Yao, Jason K. Molitoris, Matthew E. Witek, Shifeng Chen   +5 more
wiley   +1 more source

Risk of Leukemia and Brain Tumors in Children Exposed to Pesticide Residual in Households and Approaches to Reduce its Side Effect

Journal of Pediatrics Review, 2021
Context: Using various pesticides to control pests and vectors of diseases has a long history in households worldwide. However, most pesticides are considered toxic to and harmful to the environment.
Ismaeil Alizadeh, Mohammad Amin Gorouhi, Abbas Aghaei Afshar, Maryam Faraji, Mojtaba Nakhaeipour, Fatemeh Pourchangiz   +5 more
doaj  

Central Neurocytoma: A Review of Clinical Management and Histopathologic Features. [PDF]

, 2016
Central neurocytoma (CN) is a rare, benign brain tumor often located in the lateral ventricles. CN may cause obstructive hydrocephalus and manifest as signs of increased intracranial pressure. The goal of treatment for CN is a gross total resection (GTR),
Bui, Timothy T, Chen, Cheng Hao Jacky, Chung, Lawrance K, Kim, Minsu, Lagman, Carlito, Lee, Seung J, Seo, David J, Sidhu, Sabrin, Siegal, Todd L, Yang, Isaac, Yong, William H   +10 more
core   +2 more sources

Statistical process control to monitor use of a web‐based autoplanning tool

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the use of statistical process control (SPC) for quality assurance of an integrated web‐based autoplanning tool, Radiation Planning Assistant (RPA). Methods Automatically generated plans were downloaded and imported into two treatment planning systems (TPSs), RayStation and Eclipse, in which they were recalculated using ...
Hunter Mehrens, Raphael Douglas, Mary Gronberg, Kelly Nealon, Joy Zhang, Laurence Court   +5 more
wiley   +1 more source

Mathematical modeling of glioma invasion and therapy approaches via kinetic theory of active particles [PDF]

arXiv, 2022
A multiscale model for glioma spread in brain tissue under the influence of vascularization and vascular endothelial growth factors is proposed. It accounts for the interplay between the different components of the neoplasm and the healthy tissue and it investigates and compares various therapy approaches.
arxiv  

The fractal urban coherence in biourbanism: the factual elements of urban fabric [PDF]

, 2013
This article is available online and will be inserted in also printed format in the Journal in October 2013.During the last few decades, modern urban fabric lost some very important elements, only because urban design and planning turned out to be ...
Tracada, Eleni
core   +2 more sources

Treatment planning with a 2.5 MV photon beam for radiation therapy

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi, Chris Hayes, Louise Belshaw, Mark Grattan, Rao Khan, James L. Gräfe   +5 more
wiley   +1 more source

Brain tumors in patients primarly treated psychiatrically [PDF]

Vojnosanitetski Pregled, 2011
Introduction. Psychiatric symptoms are not rare manifestations of brain tumors. Brain tumors presented by symptoms of raised intracranial pressure, focal neurological signs, or convulsions are usually first seen by the neurologist or less frequently ...
Ignjatović-Ristić Dragana, Pušičić Vesna, Pejović Sanja, Đukić-Dejanović Slavica, Milovanović Dragan R., Ravanić Dragan B., Janjić Vladimir   +6 more
doaj   +1 more source