Results 41 to 50 of about 138,343 (192)

Estimating Effective Diameter and Scan Length of Abdomen and Pelvis for Radiation Dose Optimization in Computed Tomography Imaging Suitable for the Indian Population – A Preliminary Study

National Journal of Clinical Anatomy
Background: Utilization of computed tomography (CT) has dramatically increased during the last decade with a concurrent increase in exposure to ionizing radiation. Even low levels of exposure have been linked to the development of cancer.
Vandana Nathan, Roshan S. Livingstone, Ivan James Prithishkumar   +2 more
doaj   +1 more source

Quantitative evaluation of an optimized Time of Flight Magnetic Resonance Imaging procedure using a phantom setup to simulate aqueous humor flow

Data in Brief, 2018
Preclinical Magnetic Resonance Imaging at high field strength offers the great advantage of combining anatomical information and very high resolution of down to 25 µm in mice and even higher resolutions in ex vivo settings.
Thomas Wecker, Christian van Oterendorp, Wilfried Reichardt   +2 more
doaj   +1 more source

An Innovative Concept of a 3D-Coded Aperture Imaging System Proposed for Early Breast Cancer Detection

Diagnostics, 2022
Coded Aperture (CA) imaging has recently been used in nuclear medicine, but still, there is no commercial SPECT imaging camera based on CA for cancer detection. The literature is rich in examples of using the CA for planar and thin 3D imaging.
Khalid Hussain, Mohammed A. Alnafea, M Iqbal Saripan, Djelloul Mahboub, Rozi Mahmud, Wan Azizun Wan Adnan, Dong Xianling   +6 more
doaj   +1 more source

X-ray luminescence computed tomography using a focused X-ray beam

, 2017
Due to the low X-ray photon utilization efficiency and low measurement sensitivity of the electron multiplying charge coupled device (EMCCD) camera setup, the collimator based narrow beam X-ray luminescence computed tomography (XLCT) usually requires a ...
Li, Changqing, Lun, Michael C, Nguyen, Alex Anh-Tu, Zhang, Wei   +3 more
core   +2 more sources

Design and application of a realistic and multifunctional retinal phantom for standardizing ophthalmic imaging systems

Communications Engineering
Retinal imaging is essential for diagnosing and treating retinal diseases. However, the lack of standardized and realistic optical phantoms limits the calibration and validation of imaging systems.
Hyun-Ji Lee, Tae Geol Lee, Il Doh, Sang-Won Lee   +3 more
doaj   +1 more source

Noise Reduction in Brain CT: A Comparative Study of Deep Learning and Hybrid Iterative Reconstruction Using Multiple Parameters

Tomography
Objectives: We evaluated the noise reduction effects of deep learning reconstruction (DLR) and hybrid iterative reconstruction (HIR) in brain computed tomography (CT).
Yusuke Inoue, Hiroyasu Itoh, Hirofumi Hata, Hiroki Miyatake, Kohei Mitsui, Shunichi Uehara, Chisaki Masuda   +6 more
doaj   +1 more source

Artificial neural network-statistical approach for PET volume analysis and classification [PDF]

, 2012
Copyright © 2012 The Authors. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.This ...
Abbod, Maysam, Abbod, Maysam, Amira, Abbes, Amira, Abbes, Sharif, M., Sharif, M., Zaidi, Habib, Zaidi, Habib   +7 more
core   +4 more sources

Construction of Low-Cost Simulators for Training in Minimally Invasive Breast Procedures

European Journal of Breast Health
Objective: The aim of this work was to describe a technique for building low-cost simulators for training in minimally invasive breast procedures guided by ultrasound (US) and stereotactic mammography (MMG), focusing mainly on training medical ...
Mirian Khéde Careta, Maura Alambert, Rafael Da Silva Sá, Simone Elias   +3 more
doaj   +1 more source

Feasibility of Imaging Tissue Electrical Conductivity by Switching Field Gradients with MRI. [PDF]

, 2015
Tissue conductivity is a biophysical marker of tissue structure and physiology. Present methods of measuring tissue conductivity are limited. Electrical impedance tomography, and magnetic resonance electrical impedance tomography rely on passing external
Gibbs, Eric, Liu, Chunlei
core   +2 more sources

Quantitative imaging: systematic review of perfusion/flow phantoms

European Radiology Experimental, 2020
Background We aimed at reviewing design and realisation of perfusion/flow phantoms for validating quantitative perfusion imaging (PI) applications to encourage best practices.
Marije E. Kamphuis, Marcel J. W. Greuter, Riemer H. J. A. Slart, Cornelis H. Slump   +3 more
doaj   +1 more source