Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Dennis J. Atkinson"'
Autor:
Dar-Yeong Chen, Richard A. Andersen, David J. Dubowitz, Antigona Martinez, William G. Bradley, Dennis J. Atkinson, Michael B Andersen, Miriam Scadeng
Publikováno v:
Journal of Neuroscience Methods. 107:71-80
We report a technique for functional magnetic resonance imaging (fMRI) in an awake, co-operative, rhesus macaque (Macaca mulatta) in a conventional 1.5T clinical MR scanner, thus accomplishing the first direct comparison of activation in visual corte
Enhancing Drug Development and Drug Monitoring: Academia, Industry and Government Chart Common Goals
Publikováno v:
Pharmaceutical Research. 24:2005-2007
A workshop was hosted by the Biomedical Imaging Science Initiative of the University of Southern California in January 2007, entitled "Imaging-based Tools: Role in Drug Development and Drug Monitoring". This workshop brought together leaders from the
Publikováno v:
Journal of Magnetic Resonance Imaging. 8:1154-1157
The purpose of this study was to assess gradient magnetic-field-induced acoustic noise levels associated with the use of echo planar imaging (EPI) and three-dimensional fast spin echo (3D-FSE) pulse sequences. Acoustic noise measurements were obtaine
Autor:
Richard A. Andersen, Betty Gillikin, Dar Yeong Chen, Kenneth L. Grieve, Dennis J. Atkinson, David J. Dubowitz, William G. Bradley
Publikováno v:
NeuroReport. 9:2213-2218
The ability to use fMRI in a monkey model would bridge the gap between the fMRI demonstration of cerebral activation in humans and the cumulative wealth of monkey data on the functional organization of the brain from single electrode mapping, radiois
First pass MRA of the Abdomen: Ultrafast, non-breath-hold time-of-flight imaging using Gd-DTPA bolus
Publikováno v:
Journal of Magnetic Resonance Imaging. 7:1159-1162
The authors describe a new fast imaging sequence that can produce projection angiograms of the abdominal vessels at a rate of 2 to 3 frames per second. The result is a versatile imaging technique that can track the arrival of a bolus of contrast in m
Autor:
Dennis J. Atkinson, Michael Brant-Zawadzki, Mark Detrick, William G. Bradley, Gerald F. Scidmore
Publikováno v:
Stroke. 27:1187-1191
Background and Purpose Our aim was to evaluate fluid-attenuated inversion recovery (FLAIR) sequence in the diagnosis of cerebral infarction with MRI. Methods A retrospective review was undertaken of 50 consecutive MRI studies ordered for suspected ce
Autor:
Dennis J. Atkinson, Michael Brant-Zawadzki, Gary D. Gillan, Nasrola Edalatpour, Maureen C. Jensen
Publikováno v:
Journal of Magnetic Resonance Imaging. 3:656-662
Three-dimensional (3D) image rendering was performed in 14 patients who had undergone magnetic resonance (MR) imaging for focal brain lesions. The MR study included the magnetization-prepared rapid gradient-echo (MP-RAGE) sequence with 64 or 128 part
Publikováno v:
Radiology. 181:527-530
A magnetic resonance (MR) angiographic technique for noninvasive measurement of flow velocities in the intracranial cerebral arteries was studied. Velocity measurements were made in a phantom and in the middle cerebral artery of six volunteers. Veloc
Autor:
J P Finn, Dennis J. Atkinson, Robert R. Edelman, K U Wentz, Henri-Marcel Hoogewoud, J Kleefield, Patrick D. Barnes, H P Mattle, B Wallner
Publikováno v:
Radiology. 178:453-458
The authors describe a two-dimensional time-of-flight magnetic resonance (MR) angiography technique to create projection venograms of the head. The technique was applied to 27 healthy volunteers and 39 patients. The superior sagittal and straight sin
Publikováno v:
Journal of Magnetic Resonance Imaging. 1:63-70
TurboFLASH (fast low-angle shot) sequences enable the acquisition of an image in a fraction of a second. However, unique to T1-weighted ultra-fast imaging, the magnetization variation during image acquisition can produce artifacts along the phase-enc