Yasamin Karbalaeisadegh
Works (9)
Updated: August 18th, 2023 05:01
2023 journal article
Ultrasound Characterization of Cortical Bone Using Shannon Entropy
ULTRASOUND IN MEDICINE AND BIOLOGY, 49(8), 1824–1829.
author keywords: Shannon entropy; Quantitative ultrasound; Tissue characterization
TL;DR:
Sensitivity of entropy to microstructural changes in highly scattering and absorbing media can potentially be exploited to diagnose and monitor osteoporosis and lead to increased levels of randomness in the signals as a result of increased scattering.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 14, 2023
2021 journal article
Frequency-dependent analysis of ultrasound apparent absorption coefficient in multiple scattering porous media: application to cortical bone
PHYSICS IN MEDICINE AND BIOLOGY, 66(3).
author keywords: attenuation; absorption; FDTD; cortical bone; biomedical ultrasound; spectroscopy
MeSH headings : Computer Simulation; Cortical Bone / diagnostic imaging; Humans; Models, Biological; Porosity; Scattering, Radiation; Ultrasonography / methods
TL;DR:
The effect of matrix viscoelastic absorption on frequency-dependent attenuation in porous structures mimicking simplified cortical bone is addressed and the total attenuation coefficient results from the summation of scattering and absorption coefficients.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
5. Gender Equality
(Web of Science)
Source: Web Of Science
Added: March 8, 2021
2021 journal article
In vivo assessment of pulmonary fibrosis and edema in rodents using the backscatter coefficient and envelope statisticsa)
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 150(1), 183–192.
MeSH headings : Animals; Edema; Lung / diagnostic imaging; Male; Pulmonary Fibrosis / diagnostic imaging; Rats; Rodentia; Ultrasonography
TL;DR:
Lung properties were quantified by BSC and envelope statistical parameters in normal, fibrotic, and edematous rat lungs in vivo to improve the diagnosis of pulmonary fibrosis and edema as well as monitor pulmonary Fibrosis.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science; OpenAlex)
Source: Web Of Science
Added: July 26, 2021
2020 journal article
In Vivo Assessment of Pulmonary Fibrosis and Pulmonary Edema in Rodents Using Ultrasound Multiple Scattering
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 67(11), 2274–2280.
author keywords: Lung; Ultrasonic imaging; Rats; Scattering; Surgery; Rodents; Acoustics; Multiple scattering; pulmonary fibrosis; quantitative lung ultrasound; random media
MeSH headings : Animals; Disease Models, Animal; Female; Image Interpretation, Computer-Assisted / methods; Lung / diagnostic imaging; Male; Pulmonary Edema / diagnostic imaging; Pulmonary Fibrosis / diagnostic imaging; Rats; Rats, Sprague-Dawley; Ultrasonography / methods
TL;DR:
This study verifies the hypothesis that changes in the microarchitecture of the lung parenchyma can be characterized by exploiting multiple scattering of ultrasound waves by the alveolar structure and hypothesizes that in a fibrotic lung, the thickening of theAlveolar wall reduces the amount of air, thereby minimizing the scattering events.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science; OpenAlex)
Source: Web Of Science
Added: November 24, 2020
2019 journal article
Acoustic diffusion constant of cortical bone: Numerical simulation study of the effect of pore size and pore density on multiple scattering
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 146(2), 1015–1023.
MeSH headings : Bone Conduction; Cortical Bone / physiology; Cortical Bone / ultrastructure; Femur / ultrastructure; Humans; Microscopy, Acoustic; Models, Theoretical; Porosity; Scattering, Radiation; Ultrasonic Waves
TL;DR:
Finite-difference time-domain simulations were conducted in cortical microstructures derived from acoustic microscopy images of human proximal femur cross sections and modified by controlling the density and pore size, suggesting the potential of the proposed technique for the characterization of the cortical microarchitecture.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
5. Gender Equality
(Web of Science)
Source: Web Of Science
Added: September 23, 2019
2019 journal article
Artificial neural network to estimate micro-architectural properties of cortical bone using ultrasonic attenuation: A 2-D numerical study
COMPUTERS IN BIOLOGY AND MEDICINE, 114.
MeSH headings : Cortical Bone / anatomy & histology; Cortical Bone / diagnostic imaging; Humans; Image Processing, Computer-Assisted / methods; Neural Networks, Computer; Osteoporosis; Porosity; Tomography, X-Ray Computed; Ultrasonography / methods
TL;DR:
An artificial neural network (ANN) is used as a tool to help inform physics-based modelling of ultrasound propagation in complex media such as cortical bone to retrieve bone micro-architectural parameters from ultrasound measurements for the non-invasive diagnosis and monitoring osteoporosis.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
5. Gender Equality
(Web of Science)
Source: Web Of Science
Added: November 25, 2019
2019 journal article
Modeling ultrasound attenuation in porous structures with mono-disperse random pore distributions using the independent scattering approximation: a 2D simulation study
PHYSICS IN MEDICINE AND BIOLOGY, 64(15).
author keywords: ultrasound; attenuation; independent scattering approximation; cortical bone; FDTD
MeSH headings : Algorithms; Cortical Bone / diagnostic imaging; Humans; Ultrasonography / methods
TL;DR:
The results show that the modified ISA can model the frequency-dependent attenuation of ultrasonic wave with pore diameter and density ranges comparable to those of cortical bone.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
5. Gender Equality
(Web of Science)
Source: Web Of Science
Added: April 20, 2020
2019 article
Predicting Structural Properties of Cortical Bone by Combining Ultrasonic Attenuation and an Artificial Neural Network (ANN): 2-D FDTD Study
IMAGE ANALYSIS AND RECOGNITION, ICIAR 2019, PT I, Vol. 11662, pp. 407–417.
author keywords: Quantitative ultrasound; Multiple scattering; Cortical bone; Osteoporosis; Neural networks
TL;DR:
It was observed that the ANN predicted the micro-architectural parameters of the cortical bone with high accuracies and low losses with a minimum R2 (goodness of fit) value of 0.95.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
5. Gender Equality
(Web of Science)
Source: Web Of Science
Added: September 14, 2020
2018 journal article
The effect of pore size and density on ultrasonic attenuation in porous structures with mono-disperse random pore distribution: A two-dimensional in-silico study
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 144(2), 709–719.
TL;DR:
The sensitivity of the model to various parameter estimates depends on the micro-architectural parameters, pore diameter and pore density, so the ability to estimate model-sensitive parameters with a high degree of confidence is established.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
5. Gender Equality
(Web of Science)
Source: Web Of Science
Added: October 16, 2018
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