A brief review for common doppler ultrasound flow phantoms
Journal of Medical Ultrasound, 2020 In this review, the flow phantoms and the wall-less flow phantoms with recognized acoustic features (attenuation and speed of sound), interior properties, and dimensions of tissue were prepared, calibrated, and characterized by Doppler ultrasound (US ...
Sabri M Shalbi +5 more
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Establishment of Diagnostic Reference Levels for Computed Tomography Scanning in Hamadan [PDF]
Journal of Biomedical Physics and Engineering, 2020 Background: New advancements have increased the capabilities of computed tomography as a sectional medical imaging modality. An important note is assessing absorbed dose to patients and minimizing it when performing computed tomography examinations.
S Jafari +5 more
doaj +1 more source
Feasibility of MV CBCT-based treatment planning for urgent radiation therapy: dosimetric accuracy of MV CBCT-based dose calculations. [PDF]
, 2015 Unlike scheduled radiotherapy treatments, treatment planning time and resources are limited for emergency treatments. Consequently, plans are often simple 2D image-based treatments that lag behind technical capabilities available for nonurgent ...
Fogh, Shannon E +4 more
core +1 more source
Comparisons of Hounsfield Unit Linearity between Images Reconstructed using an Adaptive Iterative Dose Reduction (AIDR) and a Filter Back-Projection (FBP) Techniques [PDF]
Journal of Biomedical Physics and Engineering, 2020 Background: The HU linearity is an essential parameter in a quantitative imaging and the treatment planning systems of radiotherapy. Objective: This study aims to evaluate the linearity of Hounsfield unit (HU) in applying the adaptive iterative dose ...
I Suyudi +4 more
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Spherical deconvolution of multichannel diffusion MRI data with non-Gaussian noise models and spatial regularization [PDF]
, 2015 Spherical deconvolution (SD) methods are widely used to estimate the intra-voxel white-matter fiber orientations from diffusion MRI data. However, while some of these methods assume a zero-mean Gaussian distribution for the underlying noise, its real ...
Aja-Fernández, Santiago +13 more
core +6 more sources
Monte Carlo Simulation for Polychromatic X-ray Fluorescence Computed Tomography with Sheet-Beam Geometry [PDF]
, 2017 X-ray fluorescence computed tomography based on sheet-beam can save a huge amount of time to obtain a whole set of projections using synchrotron. However, it is clearly unpractical for most biomedical research laboratories. In this paper, polychromatic X-
Chen, Mianyi +4 more
core +3 more sources
A Stable Phantom Material for Optical and Acoustic Imaging
Journal of Visualized Experiments, 2023 Establishing tissue-mimicking biophotonic phantom materials that provide long-term stability are imperative to enable the comparison of biomedical imaging devices across vendors and institutions, support the development of internationally recognized standards, and assist the clinical translation of novel technologies.
Hacker, Lina +6 more
openaire +4 more sources
, 2020 A proton density weighted phantom ...
, Bruno, , Burak, , Pierre, Juergen
openaire +2 more sources
Frontiers in Physics, 2019 An optical phantom model with stable oxygen saturation (StO2) and optical properties (OPs) is the key for quick and accurate calibration of spectral imaging devices.
V. N. Du Le +6 more
doaj +1 more source
3D printing 18F radioactive phantoms for PET imaging
EJNMMI Physics, 2021 Purpose Phantoms are routinely used in molecular imaging to assess scanner performance. However, traditional phantoms with fillable shapes do not replicate human anatomy.
Daniel Gillett +8 more
doaj +1 more source