Results 31 to 40 of about 66,094 (288)

A standard system phantom for magnetic resonance imaging [PDF]

open access: yesMagnetic 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
openaire   +3 more sources

A feasible and automatic free tool for T1 and ECV mapping [PDF]

open access: yes, 2017
Purpose: Cardiac magnetic resonance (CMR) is a useful non-invasive tool for characterizing tissues and detecting myocardial fibrosis and edema. Estimation of extracellular volume fraction (ECV) using T1 sequences is emerging as an accurate biomarker in ...
Altabella, Luisa   +8 more
core   +1 more source

Classification of phantoms for medical imaging

open access: yesProcedia 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
openaire   +1 more source

Calibration of Spectral Imaging Devices With Oxygenation-Controlled Phantoms: Introducing a Simple Gel-Based Hemoglobin Model

open access: yesFrontiers in Physics, 2019
An optical phantom model with stable oxygen saturation (StO2) and optical properties (OPs) is the key for quick and accurate calibration of spectral imaging devices.
V. N. Du Le   +6 more
doaj   +1 more source

3D printing 18F radioactive phantoms for PET imaging

open access: yesEJNMMI Physics, 2021
Purpose Phantoms are routinely used in molecular imaging to assess scanner performance. However, traditional phantoms with fillable shapes do not replicate human anatomy.
Daniel Gillett   +8 more
doaj   +1 more source

Accurate molecular imaging of small animals taking into account animal models, handling, anaesthesia, quality control and imaging system performance [PDF]

open access: yes, 2015
Small-animal imaging has become an important technique for the development of new radiotracers, drugs and therapies. Many laboratories have now a combination of different small-animal imaging systems, which are being used by biologists, pharmacists ...
Bankstahl, Jens   +5 more
core   +1 more source

Heterogeneous Breast Phantom Development for Microwave Imaging Using Regression Models

open access: yesInternational Journal of Biomedical Imaging, 2012
As new algorithms for microwave imaging emerge, it is important to have standard accurate benchmarking tests. Currently, most researchers use homogeneous phantoms for testing new algorithms.
Camerin Hahn, Sima Noghanian
doaj   +1 more source

TomoPhantom, a software package to generate 2D–4D analytical phantoms for CT image reconstruction algorithm benchmarks

open access: yesSoftwareX, 2018
In the field of computerized tomographic imaging, many novel reconstruction techniques are routinely tested using simplistic numerical phantoms, e.g. the well-known Shepp–Logan phantom.
Daniil Kazantsev   +4 more
doaj   +1 more source

A cadaveric breast cancer tissue phantom for phase‐contrast X‐ray imaging applications

open access: yesAnimal Models and Experimental Medicine, 2023
Background As mammography X‐ray imaging technologies advance and provide elevated contrast in soft tissues, a need has developed for reliable imaging phantoms for use in system design and component calibration.
Cody C. Rounds   +4 more
doaj   +1 more source

An interferometric technique for B/A measurement [PDF]

open access: yes, 1995
An isentropic phase method is described for measuringin vitro the acoustic nonlinearity parameterB/A of several aqueous buffers, protein solutions, lipid oils, and emulsions.
Apfel, R. E., Everbach, E. Carr
core   +2 more sources

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