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Results for "linear attenuation": 8 found

A Novel Multi-Material Decomposition Algorithm for Improved Material Quantification Using Dual-Energy CT

Authors: Dale Black, David Clymer, Huanjun Ding, Hamidreza Khodajou Chokami, Sabee Molloi, Christine Vy Nguyen, Tim Sananikone, Alireza Shojazadeh, Randy Wang

Affiliation: Department of Radiological Sciences, University of California, University of California, Department of Radiological Sciences, University of California, Irvine, Department of Radiological Sciences, University of California, Irvine

Abstract Preview: Purpose: We present a novel multi-material decomposition (MMD) algorithm for accurate quantification of material concentration in reconstructed dual-energy CT images. This method addresses limitations...

Absorption and Material Property Characteristics of 3D-Printing Filaments Based on Monte-Carlo Simulations and Spectral Imaging

Authors: Izabella L. Barreto, Benjamin Taylor Heggie, Stephanie M. Leon

Affiliation: University of Florida College of Medicine, University of Florida

Abstract Preview: Purpose: 3D printing has the potential for producing materials useful for the imaging field. This work aims to identify absorption (attenuation coefficient) and material properties (effective atomic n...

Comparative Analysis of Soft Tissues and 3D Printing Materials Using Euclidean Distance for Linear Attenuation Coefficient

Authors: Gisell Ruiz Boiset, Paulo ROBERTO Costa, Elsa Bifano Pimenta

Affiliation: University of São Paulo (USP), Institute of Physics

Abstract Preview: Purpose: This study evaluates the similarity between the linear attenuation coefficients of soft tissues and 3D printing materials in diagnostic imaging range using the Euclidean distance approach.

Design and Testing of a Portable Microwave Scanner for Imaging Soft Tissue and Tumors in Cancer Patients

Authors: Imad M. Ali, Nesreen Alsbou, Sakeeneh Majeed

Affiliation: University of Central Oklahoma, University of Oklahoma Health Sciences Center

Abstract Preview: Purpose: to design and assess a microwave imaging system equipped with multiple antennas for generating high-resolution 3D images of phantom models that simulate abdominal, thoracic, and brain tissues...

Feasibility of 3D Printing for Fabricating Anthropomorphic Kidney Phantoms

Authors: Gisell Ruiz Boiset, Paulo ROBERTO Costa, Wagner Henrique Marques, Raphael Morata, Victor H.F Oliveira

Affiliation: University of São Paulo (USP), Institute of Physics

Abstract Preview: Purpose: This study investigates the feasibility of 3D printing materials in creating anthropomorphic kidney phantoms that accurately simulate the radiological properties of human tissues, for applica...

GPU-Accelerated Beamlet and Full Dose Calculations for Efficient Radiation Therapy Planning

Authors: Girish Bal, Jan Kralj, Ayan Mitra, PhD, Ling Shao, Matjaz Subic, Yevgen Voronenko

Affiliation: RefleXion Medical, Cosylab

Abstract Preview: Purpose: This work enhances the efficiency of radiation therapy treatment planning by optimizing the beamlet dose matrix and full patient dose computations using GPU acceleration. The Collapsed-Cone C...

Photon Counting CT Method for Accurate Effective Atomic Number and Electron Density Measurement

Authors: Mohammed Alzaabi, Abderaouf Behouch, Nabil Maalej, Aamir Raja, Briya Tariq

Affiliation: Khalifa University

Abstract Preview: Purpose: Spectral Photon Counting CT (SPCCT) has emerged as a transformative technology in CT imaging capable of producing images from distinct energy windows, allowing improved material characterizat...

Quantifying the Impact of Tissue Inhomogeneities on Calculated Dosimetry within LDR Brachytherapy

Authors: Fatemeh Akbari, Deidre Batchelar, Luc Beaulieu, Nathan E. Becker, Juanita Crook, Dakota Mckeown, Matthew Jonathan Muscat, Rowan M. Thomson

Affiliation: Département de physique, de génie physique et d'optique, Université Laval, BC Cancer Agency, UBC, Carleton University, BC Cancer - Kelowna, BC Cancer

Abstract Preview: Purpose:
To study the effects of inter-seed attenuation and tissue inhomogeneities on dose-volume metrics of critical structures in prostate low-dose-rate (LDR) permanent seed implant brachytherapy...