Results 21 to 30 of about 65,250 (291)
Zeitschrift für Medizinische Physik, 2022 Current medical imaging phantoms are usually limited by simplified geometry and radiographic skeletal homogeneity, which confines their usage for image quality assessment. In order to fabricate realistic imaging phantoms, replication of the entire tissue
Sepideh Hatamikia +12 more
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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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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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Development and application of stable phantoms for the evaluation of photoacoustic imaging instruments. [PDF]
PLoS ONE, 2013 Photoacoustic imaging combines the high contrast of optical imaging with the spatial resolution and penetration depth of ultrasound. This technique holds tremendous potential for imaging in small animals and importantly, is clinically translatable.
Sarah E Bohndiek +4 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
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A feasible and automatic free tool for T1 and ECV mapping [PDF]
, 2017 Purpose: Cardiac magnetic resonance (CMR) is a useful non-invasive tool for characterizing tissues and detecting myocardial fibrosis and edema. Estimation of extracellular volume fraction (ECV) using T1 sequences is emerging as an accurate biomarker in ...
Altabella, Luisa +8 more
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Organosilicon phantom for photoacoustic imaging
Journal of Biomedical Optics, 2015 Photoacoustic imaging is an emerging technique. Although commercially available photoacoustic imaging systems currently exist, the technology is still in its infancy. Therefore, the design of stable phantoms is essential to achieve semiquantitative evaluation of the performance of a photoacoustic system and can help optimize the properties of contrast ...
Roberto Pini +12 more
openaire +5 more sources
, 2020 A proton density weighted phantom ...
, Bruno, , Burak, , Pierre, Juergen
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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
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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