Results 101 to 110 of about 511,439 (299)
Scientific ReportsThe multi-scale characterization of building materials is necessary to understand complex mechanical processes, with the goal of developing new more sustainable materials.
Caori Organista +10 more
doaj +1 more source
Monte Carlo modeling of radiation dose from radiation therapy with superficial x‐rays
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Introduction Superficial x‐rays (50–100 kVp) are used for treating non‐melanoma skin cancer and intraoperative radiation therapy (IORT). At these energies, the photoelectric effect significantly increases absorbed dose to bone compared to soft tissue.
Reham Barghash +3 more
wiley +1 more source
X-ray ghost tomography: denoising, dose fractionation and mask considerations [PDF]
IEEE Transactions on Computational Imaging 5, 136-149 (2019), 2018 Ghost imaging has recently been successfully achieved in the X-ray regime; due to the penetrating power of X-rays this immediately opens up the possibility of X-ray ghost tomography. No research into this topic currently exists in the literature. Here we present adaptations of conventional tomography techniques to this new ghost imaging scheme. Several
arxiv
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose A new workflow was investigated for Elekta Unity MR‐Linac by removing the computed tomography (CT)‐simulation step and using diagnostic CT (DCT) for reference plan generation. Materials and methods Ten patients with ultra‐hypofractionated prostate cancer treated with magnetic resonance imaging (MRI)‐guided adaptive radiotherapy were ...
Yuan Xu +5 more
wiley +1 more source
Micro-CT and histological examination of accessory canals in 34 equine cheek teeth
Frontiers in Veterinary ScienceAccessory canals and apical deltas have been extensively studied in human dentistry. Their clinical role as a difficult to clean reservoir for bacteria during endodontic treatments has been well described.
Szabolcs A. Korsós +5 more
doaj +1 more source
Effects of X-Ray Dose On Rhizosphere Studies Using X-Ray Computed Tomography.
PLoS ONE, 2013 X-ray Computed Tomography (CT) is a non-destructive imaging technique originally designed for diagnostic medicine, which was adopted for rhizosphere and soil science applications in the early 1980s.
Susan Zappala +7 more
doaj +1 more source
Neural networks for calibration tomography [PDF]
Artificial neural networks are suitable for performing pattern-to-pattern calibrations. These calibrations are potentially useful for facilities operations in aeronautics, the control of optical alignment, and the like.
Decker, Arthur
core +1 more source
Single-image Tomography: 3D Volumes from 2D Cranial X-Rays [PDF]
, 2018 As many different 3D volumes could produce the same 2D x-ray image, inverting this process is challenging. We show that recent deep learning-based convolutional neural networks can solve this task. As the main challenge in learning is the sheer amount of
Henzler, Philipp +3 more
core +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose This work introduces BreastWatch, a Varian Eclipse script tool designed to help medical physicists, dosimetrists, and radiation oncologists easily inspect and improve External Beam Breast Treatment (EBBT) plans using automatic evaluation of protocol dose‐constraints enhanced by a Community‐Based approach.
Stefano Agostinelli +8 more
wiley +1 more source
Line-Source Based X-Ray Tomography
International Journal of Biomedical Imaging, 2009 Current computed tomography (CT) scanners, including micro-CT scanners, utilize a point x-ray source. As we target higher and higher spatial resolutions, the reduced x-ray focal spot size limits the temporal and contrast resolutions achievable.
Deepak Bharkhada +4 more
doaj +1 more source