Objective: Silent magnetic resonance angiography (MRA) was compared with time-of-flight (TOF)-MRA in imaging of arteriovenous malformations (AVMs) of the brain.
Methods: Thirty-five consecutive patients with AVMs of the brain were included. Quantitative analyses were performed by measuring both signal-to-noise ratio and contrast-to-noise ratio of the nidus.
Background: Short TI inversion-recovery (STIR) imaging is widely used, but its signal-to-noise-ratio (SNR) is relatively low. Iterative decomposition of water and fat with echo asymmetric and least-squares estimation (IDEAL) imaging has demonstrated promising results in several areas.
Purpose: To compare T2-weighted fast spin-echo IDEAL (T2W IDEAL-FSE) with STIR to determine which sequence is superior to image the brachial plexus.
Study Design: Cerebral activation by lumbar mechanical stimulus was investigated by functional magnetic resonance imaging in healthy subjects and patients with chronic low back pain (LBP).
Objectives: To characterize the cerebral substrates of LBP, and to explore a possible pathologic pattern of cerebral activation in chronic LBP patients.
Summary Of Background Data: The cerebral substrates of LBP have been poorly defined in contrast to those of cutaneous somatic pain.