This study demonstrates the use of diffusion-weighted MR imaging in improving the specificity
of the diagnosis of extraaxial brain tumors. Three surgically proved lesions (one arachnoid …

The diffusion tensor is currently the accepted model of diffusion in biological tissues. The
measured diffusion behavior may be more complex when two or more distinct tissues with …

The purpose of this study was to evaluate the white-matter changes associated with cranial
radiation by MR imaging. The MR scans of 95 patients receiving conventional external beam …

Diffusion tensor MRI provides unique directional diffusion information that can be used to
estimate the patterns of white matter connectivity in the human brain. In this study, the behavior …

Object. Because lumbar magnetic resonance (MR) imaging fails to identify a treatable
cause of chronic sciatica in nearly 1 million patients annually, the authors conducted MR …

✓ Currently, diagnosis and management of disorders involving nerves are generally undertaken
without images of the nerves themselves. The authors evaluated whether direct nerve …

Small gradient fields resulting from incompletely canceled eddy currents can cause geometric
distortion in echo‐planar images. Although this distortion is negligible in most echo‐…

The degree of diffusion tensor anisotropy is often associated with the organization of structural
tissues such as white matter. Numerous measures of diffusion anisotropy have been …

Medical imaging, including MR imaging [1], is playing an increasingly important role in the
diagnosis of disorders affecting the peripheral nerves and muscles [2, 3]. In the past, the …

Materials and Methods Images were acquired on a 1.5-T Siemens Magnetom unit (Siemens
AG, Erlangen, West Germany) with a linearly polarized head coil. MR angiograms and MIPs …