Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Michael S, Van Lysel"'
Publikováno v:
Medical Physics. 38:1919-1930
Purpose: In this study, newly formulated XR-RV3 GafChromic®film was calibrated with National Institute of Standards and Technology (NIST) traceability for measurement of patient skin dose during fluoroscopically guided interventional procedures. Met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::659722143b64c62a53e6e00b7851e8a8
https://doi.org/10.1118/1.3560422
https://doi.org/10.1118/1.3560422
Publikováno v:
Medical Physics. 38:283-293
Purpose: Quantitative coronary angiography (QCA) can be used to support device size selection for cardiovascular interventions. The accuracy of QCA measurements using conventional x-ray fluoroscopy depends on proper calibration using a reference obje
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21fe501f7d48e78db5e461b132133738
https://doi.org/10.1118/1.3528227
https://doi.org/10.1118/1.3528227
Publikováno v:
Medical Physics. 37:6377-6389
Purpose: Scanning beam digital x-ray (SBDX) is an inverse geometry fluoroscopic system with high dose efficiency and the ability to perform continuous real-time tomosynthesis at multiple planes. This study describes a tomosynthesis-based method for 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b5e283c07c72ca7ce80cdae40aec74b
https://doi.org/10.1118/1.3515463
https://doi.org/10.1118/1.3515463
Publikováno v:
Medical Physics. 33:2714-2727
The scanning-beam digital x-ray (SBDX) system is designed for x-ray dose reduction in cardiac angiographic applications. Scatter reduction, efficient detection of primary x-rays, and an inverse beam geometry are the main components of the entrance do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de66c187def95f21a02f5c47012adc9a
https://doi.org/10.1118/1.2208736
https://doi.org/10.1118/1.2208736
Publikováno v:
Proceedings of SPIE--the International Society for Optical Engineering. 9033
Proper sizing of interventional devices to match coronary vessel dimensions improves procedural efficiency and therapeutic outcomes. We have developed a novel method using inverse geometry x-ray fluoroscopy to automatically determine vessel dimension
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c79ce3cf5403a7fc23cf54d2c0d6f065
https://pubmed.ncbi.nlm.nih.gov/24999298
https://pubmed.ncbi.nlm.nih.gov/24999298
Autor:
Timothy D. Betts, Michael S. Van Lysel, Joseph A. Heanue, Michael A. Speidel, Brian P. Wilfley
Publikováno v:
Medical Physics. 28:232-240
Vessel contrast was measured in the fluoroscopic images produced by a scanning-beam digital x-ray (SBDX) system and an image intensifier/television (II/TV) based system. The SBDX system electronically scans a series of pencil x-ray beams across the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8efb846880e6c57da83a8472b78cab65
https://doi.org/10.1118/1.1339881
https://doi.org/10.1118/1.1339881
Publikováno v:
Medical Imaging 2013: Physics of Medical Imaging.
Low tube current scanning in combination with HYPR (HighlY constrained backPRojection) noise reduction is a proposed method for low-dose time-resolved CT myocardial perfusion imaging. We report animal studies and simulations investigating the coronar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b010b78b05e743bf30721ba65e76cb3a
https://doi.org/10.1117/12.2007719
https://doi.org/10.1117/12.2007719
Publikováno v:
Medical Imaging: Image Processing
Scanning Beam Digital X-ray (SBDX) is a low-dose inverse geometry fluoroscopic system for cardiac interventional procedures. The system performs x-ray tomosynthesis at multiple planes in each frame period and combines the tomosynthetic images into a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::843b505c8b10d81fe5f589ffe0a30cd4
https://doi.org/10.1117/12.2006238
https://doi.org/10.1117/12.2006238
Autor:
Michael A, Speidel, Courtney L, Bateman, Yinghua, Tao, Amish N, Raval, Timothy A, Hacker, Scott B, Reeder, Michael S, Van Lysel
Publikováno v:
Medical physics. 40(1)
This study describes a HighlY constrained backPRojection (HYPR) image processing method for the reduction of image noise in low tube current time-resolved CT myocardial perfusion scans. The effect of this method on myocardial time-attenuation curve n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::cc64ab5f0200307710bd651f3d24a13e
https://pubmed.ncbi.nlm.nih.gov/23298095
https://pubmed.ncbi.nlm.nih.gov/23298095
Autor:
Michael S. Van Lysel
Publikováno v:
Medical Physics. 21:219-226
Dual-energy digital subtraction angiography (DSA) is immune to the misregistration artifacts which plague conventional temporal subtraction DSA. However, since the signal-to-noise ratio (SNR) of dual-energy DSA is lower than temporal subtraction it i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f03c841378960ebdd31dfbeb3b75bf3d
https://doi.org/10.1118/1.597376
https://doi.org/10.1118/1.597376