Results 1 to 10 of about 6,084,382 (354)

Development of a patient-specific chest computed tomography imaging phantom with realistic lung lesions using silicone casting and three-dimensional printing [PDF]

open access: yesScientific Reports, 2023
The validation of the accuracy of the quantification software in computed tomography (CT) images is very challenging. Therefore, we proposed a CT imaging phantom that accurately represents patient-specific anatomical structures and randomly integrates ...
Dayeong Hong   +3 more
doaj   +3 more sources

Noise reduction on mammographic phantom images [PDF]

open access: diamondELCVIA 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
openalex   +8 more sources

Elasticity imaging phantoms [PDF]

open access: bronzeUltrasound in Medicine & Biology, 2003
Timothy J. Hall
openalex   +3 more sources

Detectability and Volumetric Accuracy of Pulmonary Nodules in Low-Dose Photon-Counting Detector Computed Tomography: An Anthropomorphic Phantom Study

open access: yesDiagnostics, 2023
The aim of this phantom study was to assess the detectability and volumetric accuracy of pulmonary nodules on photon-counting detector CT (PCD-CT) at different low-dose levels compared to conventional energy-integrating detector CT (EID-CT).
Joost F. Hop   +10 more
doaj   +1 more source

A novel tissue-mimicking phantom for US/CT/MR-guided tumor puncture and thermal ablation

open access: yesInternational Journal of Hyperthermia, 2022
Aim This study aimed to develop a novel tumor-bearing tissue phantom model that can be used for US/CT/MR-guided tumor puncture and thermal ablation.Methods The phantom model comprised two parts: a normal tissue-mimicking phantom and a tumor-mimicking ...
Xinyu Zhong   +4 more
doaj   +1 more source

An anatomically correct 3D‐printed mouse phantom for magnetic particle imaging studies

open access: yesBioengineering & Translational Medicine, 2022
We report anatomically correct 3D‐printed mouse phantoms that can be used to plan experiments and evaluate analysis protocols for magnetic particle imaging (MPI) studies.
Nicole S. Sarna   +7 more
doaj   +1 more source

A NIM PET/CT phantom for evaluating the PET image quality of micro-lesions and the performance parameters of CT

open access: yesBMC Medical Imaging, 2021
Background The commonly used NEMA IEC Body phantom has a number of defects, hindering its application for detecting micro-lesions and measuring the performance parameters of computed tomography (CT).
Shujie Lu   +5 more
doaj   +1 more source

Review of imaging test phantoms

open access: yesJournal 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
openaire   +2 more sources

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

Simulation of Capillary Hemodynamics and Comparison with Experimental Results of Microphantom Perfusion Weighted Imaging [PDF]

open access: yesJournal of Biomedical Physics and Engineering, 2020
Background: Perfusion imaging, one of MRI’s techniques, is widely used to test damaged tissues of the body. The parameters used in this technique include cerebral blood flow (CBF), cerebral blood volume (CBV), and mean transit time (MTT). The MRI scanner
S Shurche, N Riyahi Alam
doaj   +1 more source

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