Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Nathaniel R. Fredette"'
Publikováno v:
Medical Imaging 2020: Physics of Medical Imaging.
Accurate quantitation of bone density variation would allow monitoring changes due to aging, disease progression, therapy outcomes or drug response. We present results from our material decomposition method using spectral computed tomography (CT) wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c14073ccff04896a2b30f3bdd114ad2
https://doi.org/10.1117/12.2550543
https://doi.org/10.1117/12.2550543
Publikováno v:
Medical Imaging 2019: Physics of Medical Imaging.
Recently, we proposed a multi-step material decomposition method for spectral CT where the decomposition is solved in a series of steps each separating one new material from the original attenuation data. Until now, this method has only been tested u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b96c55ccad6870ad93a5795611c018a7
https://doi.org/10.1117/12.2513503
https://doi.org/10.1117/12.2513503
Publikováno v:
Medical Imaging 2019: Physics of Medical Imaging.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f262cd2b75a6d14e1ce7b43d9f16c73f
https://doi.org/10.1117/12.2513513
https://doi.org/10.1117/12.2513513
A sensitivity analysis on parameters that affect a multi-step material decomposition for spectral CT
Publikováno v:
Medical Imaging 2018: Physics of Medical Imaging.
When using a photon counting detector (PCD) for material decomposition problems, a major issue is the low-count rate per energy bin which may lead to high image-noise with compromised contrast and accuracy. We recently proposed a multi-step algorithm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c20471717422a1eb7c0cbedca7acccd3
https://doi.org/10.1117/12.2294956
https://doi.org/10.1117/12.2294956
Publikováno v:
Medical Imaging: Image Perception, Observer Performance, and Technology Assessment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::183bb5ab217f8aceebbe31750b05107b
https://doi.org/10.1117/12.2295218
https://doi.org/10.1117/12.2295218
On the impact of local image texture parameters on search and localization in digital breast imaging
Publikováno v:
Medical Imaging 2017: Image Perception, Observer Performance, and Technology Assessment.
Understanding factors that influence search and localization of signals in tomographic breast imaging can allow for the development of efficient system design and image displays. Several acquisition, reconstruction and display parameters are known to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f9c984b448ce33c301b0753aa0f808c
https://doi.org/10.1117/12.2256113
https://doi.org/10.1117/12.2256113
Publikováno v:
Medical Imaging 2017: Physics of Medical Imaging.
When using a photon counting detector for material decomposition problems, a major issue is the low-count rate per energy bin which may lead to high image-noise with compromised contrast and accuracy. A multi-step algorithmic method of material decom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a69f4375b120f6dbafa373de5c9adc2b
https://doi.org/10.1117/12.2256114
https://doi.org/10.1117/12.2256114
Publikováno v:
Medical Imaging 2017: Physics of Medical Imaging.
Photon counting spectral detectors are being investigated to allow better discrimination of multiple materials by collecting spectral data for every detector pixel. The process of material decomposition or discrimination starts with an accurate estim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06b94d508f3178e345d47346a4712eff
https://doi.org/10.1117/12.2256106
https://doi.org/10.1117/12.2256106
Publikováno v:
Physics in Medicine & Biology. 64:145001
Spectral images from photon counting detectors are being explored for material decomposition applications such as for obtaining quantitative maps of tissue types and contrast agents. While these detectors allow acquisition of multi-energy data in a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f4ce46a0e032559e14eb55524d8fd86
https://doi.org/10.1088/1361-6560/ab2b0e
https://doi.org/10.1088/1361-6560/ab2b0e
Publikováno v:
SPIE Proceedings.
X-ray phase contrast imaging has been investigated during the last two decades for potential benefits in soft tissue imaging. Long imaging time, high radiation dose and general measurement complexity involving motion of x-ray optical components have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae80957ff2a4c2d85672527a0dcdbbf8
https://doi.org/10.1117/12.2218056
https://doi.org/10.1117/12.2218056