Shobhit Sharma
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View article: STEGANOHIDE: AN INFORMATION HIDING SYSTEM USING STEGANOGRAPHY TECHNIQUE
STEGANOHIDE: AN INFORMATION HIDING SYSTEM USING STEGANOGRAPHY TECHNIQUE Open
Steganography, a subset of data hiding techniques, seeks to conceal sensitive information within any form of digital media. The goal of a steganographyplan at the sender's end is to incorporate a secret message into an innocent-looking ima…
View article: Amyloid Light-Chain (AL) Amyloidosis of the Trachea Associated With an Indolent B-cell Neoplasm
Amyloid Light-Chain (AL) Amyloidosis of the Trachea Associated With an Indolent B-cell Neoplasm Open
View article: Deep silicon photon-counting CT: A first simulation-based study for assessing perceptual benefits across diverse anatomies
Deep silicon photon-counting CT: A first simulation-based study for assessing perceptual benefits across diverse anatomies Open
View article: Can Photon-Counting CT Improve Estimation Accuracy of Morphological Radiomics Features? A Simulation Study for Assessing the Quantitative Benefits from Improved Spatial Resolution in Deep Silicon-Based Photon-Counting CT
Can Photon-Counting CT Improve Estimation Accuracy of Morphological Radiomics Features? A Simulation Study for Assessing the Quantitative Benefits from Improved Spatial Resolution in Deep Silicon-Based Photon-Counting CT Open
View article: Dose coefficients for organ dosimetry in tomosynthesis imaging of adults and pediatrics across diverse protocols
Dose coefficients for organ dosimetry in tomosynthesis imaging of adults and pediatrics across diverse protocols Open
Purpose The gold‐standard method for estimation of patient‐specific organ doses in digital tomosynthesis (DT) requires protocol‐specific Monte Carlo (MC) simulations of radiation transport in anatomically accurate computational phantoms. A…
View article: Perils of Injudicious Medical Imaging: Time for a Wake-up Call!
Perils of Injudicious Medical Imaging: Time for a Wake-up Call! Open
View article: Corrections to “<i>i</i>Phantom: A Framework for Automated Creation of Individualized Computational Phantoms and its Application to CT Organ Dosimetry” [Aug 21 3061-3072]
Corrections to “<i>i</i>Phantom: A Framework for Automated Creation of Individualized Computational Phantoms and its Application to CT Organ Dosimetry” [Aug 21 3061-3072] Open
In [1], the dose estimation accuracy using the alternative baseline method under modulated tube current was not correctly calculated due to an unintentional simulation error.
View article: A GPU‐accelerated framework for individualized estimation of organ doses in digital tomosynthesis
A GPU‐accelerated framework for individualized estimation of organ doses in digital tomosynthesis Open
Purpose Estimation of organ doses in digital tomosynthesis (DT) is challenging due to the lack of existing tools that accurately and flexibly model protocol‐ and view‐specific collimations and motion trajectories of the source and detector…
View article: Dose coefficients for organ dosimetry in tomosynthesis imaging of adults and pediatrics across diverse protocols
Dose coefficients for organ dosimetry in tomosynthesis imaging of adults and pediatrics across diverse protocols Open
A database of organ dose coefficients using MC simulations for a clinically representative virtual population of adult and pediatric XCAT patient models over an expanded set of 21 exam protocols in digital tomosynthesis.
View article: Dose coefficients for organ dosimetry in tomosynthesis imaging of adults and pediatrics across diverse protocols
Dose coefficients for organ dosimetry in tomosynthesis imaging of adults and pediatrics across diverse protocols Open
A database of organ dose coefficients using MC simulations for a clinically representative virtual population of adult and pediatric XCAT patient models over an expanded set of 21 exam protocols in digital tomosynthesis.
View article: Dose coefficients for organ dosimetry in tomosynthesis imaging of adults and pediatrics across diverse protocols
Dose coefficients for organ dosimetry in tomosynthesis imaging of adults and pediatrics across diverse protocols Open
A database of organ dose coefficients using MC simulations for a clinically representative virtual population of adult and pediatric XCAT patient models over an expanded set of 21 exam protocols in digital tomosynthesis.
View article: A scanner-specific framework for simulating CT images with tube current modulation
A scanner-specific framework for simulating CT images with tube current modulation Open
Although tube current modulation (TCM) is routinely implemented in modern computed tomography (CT) scans, no existing CT simulator is capable of generating realistic images with TCM. The goal of this study was to develop such a framework t…
View article: A GPU-accelerated framework for rapid estimation of scanner-specific scatter in CT for virtual imaging trials
A GPU-accelerated framework for rapid estimation of scanner-specific scatter in CT for virtual imaging trials Open
Virtual imaging trials (VITs), defined as the process of conducting clinical imaging trials using computer simulations, offer a time- and cost-effective alternative to traditional imaging trials for CT. The clinical potential of VITs hinge…
View article: <i>i</i>Phantom: A Framework for Automated Creation of Individualized Computational Phantoms and Its Application to CT Organ Dosimetry
<i>i</i>Phantom: A Framework for Automated Creation of Individualized Computational Phantoms and Its Application to CT Organ Dosimetry Open
The new framework brings the creation and application of CHPs (computational human phantoms) to the level of individual CHPs through automation, achieving wide and precise organ localization, paving the way for clinical monitoring, persona…
View article: Bone remineralization of lytic lesions in multiple myeloma – The Arkansas experience
Bone remineralization of lytic lesions in multiple myeloma – The Arkansas experience Open
View article: iPhantom: a framework for automated creation of individualized computational phantoms and its application to CT organ dosimetry
iPhantom: a framework for automated creation of individualized computational phantoms and its application to CT organ dosimetry Open
Objective: This study aims to develop and validate a novel framework, iPhantom, for automated creation of patient-specific phantoms or digital-twins (DT) using patient medical images. The framework is applied to assess radiation dose to ra…
View article: Virtual clinical trial for quantifying the effects of beam collimation and pitch on image quality in computed tomography
Virtual clinical trial for quantifying the effects of beam collimation and pitch on image quality in computed tomography Open
Purpose: To utilize a virtual clinical trial (VCT) construct to investigate the effects of beam collimation and pitch on image quality (IQ) in computed tomography (CT) under different respiratory and cardiac motion rates. Approac…
View article: Intelligent Control of Autonomous Vessels: Bayesian Estimation Instead of Statistical Learning?
Intelligent Control of Autonomous Vessels: Bayesian Estimation Instead of Statistical Learning? Open
Marine vessels have been recently considered for redesign with a view towards autonomous operation. This brings forth a number of safety concerns as regards malware attacks on intra-vehicle communications systems as well as on sensor based…
View article: A real-time Monte Carlo tool for individualized dose estimations in clinical CT
A real-time Monte Carlo tool for individualized dose estimations in clinical CT Open
The increasing awareness of the adverse effects associated with radiation exposure in computed tomography (CT) has necessesitated the quantification of dose delivered to patients for better risk assessment in the clinic. The current method…
View article: Organ doses from CT localizer radiographs: Development, validation, and application of a Monte Carlo estimation technique
Organ doses from CT localizer radiographs: Development, validation, and application of a Monte Carlo estimation technique Open
Purpose The purpose of this study was to simulate and validate organ doses from different computed tomography (CT) localizer radiograph geometries using Monte Carlo methods for a population of patients. Methods A Monte Carlo method was dev…
View article: Development of a scanner-specific simulation framework for photon-counting computed tomography
Development of a scanner-specific simulation framework for photon-counting computed tomography Open
The aim of this study was to develop and validate a simulation platform that generates photon-counting CT images of voxelized phantoms with detailed modeling of manufacturer-specific components including the geometry and physics of the x-r…
View article: Imaging of Abnormal Air in the Abdomen and Pelvis
Imaging of Abnormal Air in the Abdomen and Pelvis Open
The presence of abnormal air collection on an imaging study is quite often the reason as well as the solution to a diagnostic dilemma. The purpose of this review article is to develop an understanding of anatomical localization and determi…
View article: DukeSim: A Realistic, Rapid, and Scanner-Specific Simulation Framework in Computed Tomography
DukeSim: A Realistic, Rapid, and Scanner-Specific Simulation Framework in Computed Tomography Open
The purpose of this study was to develop a CT simulation platform that is: 1) compatible with voxel-based computational phantoms; 2) capable of modeling the geometry and physics of commercial CT scanners; and 3) computationally efficient. …