Now showing items 1-10 of 206
The effects of incomplete breath-holding on 3D MR Image Quality
(Wiley Subscription Services, Inc., A Wiley Company, 1997-11)
The purpose of this study was to investigate how fast three-dimensional (3D) MR image quality is affected by breath-holding and to develop an optimal breath-holding strategy that minimizes artifact in the event of an ...
Staphylococcal esophagitis causing giant ulcers
(Springer-Verlag; Springer-Verlag New York, Inc., 1993-06)
A 29-year-old woman with Hodgkin disease developed odynophagia while receiving chemotherapy. Large esophageal ulcers due to staphylococcal infection of the mucosa were visualized by endoscopy and radiography. This unusual ...
Signal-to-noise measures for magnetic resonance imagers
(Elsevier, 1993)
The signal-to-noise ratio (SNR) in magnetic resonance imaging represents one of the system operating variables that must be determined both for evaluating the performance of different imaging protocols on a particular ...
Quantitative assessment of surface roughness using backscattered ultrasound: The effects of finite surface curvature
(Elsevier, 1994)
We have previously described a technique to quantify surface fibrillatory changes in osteoarthritic articular cartilage. In that study, the angular distribution of the scattered acoustic field from an insonifying source ...
Discordance between Traditional Pathologic and Energy Metabolic Changes in Very Early Alzheimer's Disease: Pathophysiological Implications
(Blackwell Publishing Ltd, 1999-11)
MR Imaging of Levator Ani Muscle Recovery Following Vaginal Delivery
(Springer-Verlag London Limited, 1999-08)
Our aim was to quantify the changes that occur in the levator ani muscles (LA) after vaginal delivery using magnetic resonance imaging. Fourteen women underwent MRI 1 day postpartum. Six of them were also scanned 1, 2, 6 ...
Detection of liver fibrosis with magnetic cross-relaxation
(Wiley Subscription Services, Inc., A Wiley Company, 1994-05)
The utility of MRI using magnetization transfer (MT) enhanced pulse sequences to diagnose hepatic cirrhosis in a rat model was investigated. Hepatic T 1 was measured with and without MT off-resonance RF pulses in 17 ...
PET and P300 relationships in early Alzheimer's disease
(Elsevier, 1990)
The P300 (P3) wave of the auditory brain event-related potential was investigated in patients with probable Alzheimer's disease to determine whether P300 latency discriminated these patients from controls and whether ...
Chronic electrical stimulation reverses deafness-related depression of electrically evoked 2-deoxyglucose activity in the guinea pig inferior colliculus
(Elsevier, 1993-11)
The [14C]-2-deoxyglucose (2-DG) autoradiographic technique was used to study how auditory-related metabolic activity changes with deafness, and how chronic electrical stimulation of the deafened system may modify these ...