Results 11 to 20 of about 137,016 (337)
Elasticity imaging phantoms [PDF]
Ultrasound in Medicine & Biology, 2003 Timothy J. Hall
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Noise reduction on mammographic phantom images [PDF]
ELCVIA Electronic Letters on Computer Vision and Image Analysis, 2006 A noise reduction scheme on digitized mammographic phantom images is presented. This algorithm is based on a direct contrast modification method with an optimal function, obtained by using the mean squared error as a criterion. Computer simulated images containing objects similar to those observed in the phantom are built to evaluate the performance of
Mouloud Adel +3 more
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Review of imaging test phantoms
Journal of Biomedical Optics, 2023 Photoacoustic tomography has emerged as a prominent medical imaging technique that leverages its hybrid nature to provide deep penetration, high resolution, and exceptional optical contrast with notable applications in early cancer detection, functional brain imaging, drug delivery monitoring, and guiding interventional procedures.
Christie, Liam B. +6 more
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Materials for phantoms for terahertz pulsed imaging [PDF]
Physics in Medicine and Biology, 2004 Phantoms are commonly used in medical imaging for quality assurance, calibration, research and teaching. They may include test patterns or simulations of organs, but in either case a tissue substitute medium is an important component of the phantom. The aim of this work was to identify materials suitable for use as tissue substitutes for the relatively
Gillian C. Walker +3 more
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Developing a Phantom for the Positronium Imaging Evaluation
Acta Physica Polonica B Proceedings Supplement, 2022 In this contribution, a concept for a new phantom for positronium imaging with PET scanners is described. The proposed phantom is based on the NEMA IEC phantom in which six high-activity spheres are filled with solutions characterized by a different mean ortho-positronium lifetime.
Łapkiewicz, G. +2 more
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Physics and Imaging in Radiation Oncology, 2023 Purpose: Periodic imaging quality assurance (QA) of magnetic resonance imaging linear accelerator (MRL) is critical. The feasibility of a new MRL imaging phantom used for QA in the low field was evaluated with automated image analysis of various ...
James J. Sohn +3 more
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Classification of phantoms for medical imaging
Procedia CIRP, 2023 Phantoms are physical models that mimic biological tissue and its properties in medical imaging. They play an important role in medical quality assurance, research, education, and training, since they can offer an adequate test environment. As the use of medical imaging modalities is a growing field in medicine phantoms are likewise evolving very ...
Wegner, Marie +2 more
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Tissue mimicking phantoms for fluorescence imaging [PDF]
Saratov Fall Meeting 2019: Optical and Nano-Technologies for Biology and Medicine, 2020 The article describes the development of the optical phantom mimicking flavin adenine dinucleotide (FAD) and skin collagen fluorescence. The results of experimental studies using fluorescence imaging and fluorescence spectroscopy methods are demonstrated. The method of optical phantom production for quick calibration of fluorescence imaging devices for
Shupletsov, V. (Valery) +8 more
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A standard system phantom for magnetic resonance imaging [PDF]
Magnetic Resonance in Medicine, 2021 PurposeA standard MRI system phantom has been designed and fabricated to assess scanner performance, stability, comparability and assess the accuracy of quantitative relaxation time imaging. The phantom is unique in having traceability to the International System of Units, a high level of precision, and monitoring by a national metrology institute ...
Karl F. Stupic +19 more
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Realistic Dynamic Numerical Phantom for MRI of the Upper Vocal Tract
Journal of Imaging, 2020 Dynamic and real-time MRI (rtMRI) of human speech is an active field of research, with interest from both the linguistics and clinical communities. At present, different research groups are investigating a range of rtMRI acquisition and reconstruction ...
Joe Martin +3 more
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