Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Samuel W. Fielden"'
Publikováno v:
International Journal of Biomedical Imaging, Vol 2019 (2019)
Identification of early ischemic changes (EIC) on noncontrast head CT scans performed within the first few hours of stroke onset may have important implications for subsequent treatment, though early stroke is poorly delimited on these studies. Lack
Externí odkaz:
https://doaj.org/article/ca19d23938224bfe83955fed0bf2918e
Autor:
Christopher M. Haggerty, Brandon K. Fornwalt, Samuel W. Fielden, Christopher D. Nevius, Eric D. Carruth
Publikováno v:
Cardiovasc Eng Technol
PURPOSE: Right ventricular (RV) function is increasingly recognized for its prognostic value in many disease states. As with the left ventricle (LV), strain-based measurements may have better prognostic value than typical chamber volumes or ejection
Autor:
Brandon K. Fornwalt, Linyuan Jing, Samuel W. Fielden, Christopher M. Haggerty, Gregory J. Wehner, Joseph B. Leader
Publikováno v:
Circulation. 142
Introduction: An intriguing U-shape relationship between left ventricular ejection fraction (LVEF) and survival has recently been reported, with LVEFs of 60-65% associated with the lowest mortality risk. In heart failure, LVEF recovery has been linke
Publikováno v:
Magnetic Resonance in Medicine. 81:1806-1817
PURPOSE: Images acquired with spiral k-space trajectories can suffer from off-resonance image blur. Previous work has shown that averaging 2 images acquired with a retraced, in/out (RIO) trajectory self-corrects image blur so long as off-resonant spi
Publikováno v:
AJNR Am J Neuroradiol
BACKGROUND AND PURPOSE: The majority of brain growth and development occur in the first 2 years of life. This study investigated these changes by analysis of the brain radiodensity histogram of head CT scans from the clinical population, 0–2 years
Autor:
Li Zhao, Robert F. Dallapiazza, Max Wintermark, Xue Feng, G. Wilson Miller, W. Jeffrey Elias, Matthew G. Geeslin, Kim Butts Pauly, Samuel W. Fielden, Craig H. Meyer
Publikováno v:
Magnetic Resonance in Medicine. 79:3122-3127
Purpose To develop a rapid pulse sequence for volumetric MR thermometry. Methods Simulations were carried out to assess temperature deviation, focal spot distortion/blurring, and focal spot shift across a range of readout durations and maximum temper
Publikováno v:
Journal of Therapeutic Ultrasound, Vol 5, Iss 1, Pp 1-11 (2017)
Journal of Therapeutic Ultrasound
Journal of Therapeutic Ultrasound
Background Volumetric thermometry with fine spatiotemporal resolution is desirable to monitor MR-guided focused ultrasound (MRgFUS) procedures in the brain, but requires some form of accelerated imaging. Accelerated MR temperature imaging methods hav
Autor:
Samuel W. Fielden
Publikováno v:
Journal of Magnetic Resonance Imaging. 53:1266-1267
Publikováno v:
AJNR Am J Neuroradiol
BACKGROUND AND PURPOSE: Though CT is a highly calibrated imaging modality, head CT is typically interpreted qualitatively. Our aim was to initiate the establishment of a reference quantitative database for clinical head CT. MATERIALS AND METHODS: An
Publikováno v:
International Journal of Biomedical Imaging
International Journal of Biomedical Imaging, Vol 2019 (2019)
International Journal of Biomedical Imaging, Vol 2019 (2019)
Identification of early ischemic changes (EIC) on noncontrast head CT scans performed within the first few hours of stroke onset may have important implications for subsequent treatment, though early stroke is poorly delimited on these studies. Lack