of the intervertebra! disk complex begins early in life and is a consequence of a van-ety of
environmental factors as well as normal aging. The pathophysiolo-gy of this disorder is …

The authors reviewed magnetic resonance (MR) images of 474 consecutive patients
referred for lumbar spine MR imaging. Type 1 changes (decreased signal intensity on T1-weighted …

We retrospectively reviewed the MR examinations of 20 patients with surgically documented
sequestered lumbar disks (free fragments). Sixteen of 20 cases demonstrated extradural …

In summary, MR imaging has become the single most effective modality for the evaluation of
spinal neoplasms by virtue of its ability to image the spinal cord directly and noninvasively. …

… Drs Aagaard-Kienitz and Masaryk have no potential conflicts of interest to disclose. Dr
Albuquerque is a consultant/advisory board member of Boston Scientific, Cordis, and Micrus. Dr …

The authors assessed the clinical utility of a magnetic resonance angiography technique in
the evaluation of intracranial circulation. Eighteen patients with a low likelihood of …

OBJECTIVE: Intradural pseudoaneurysms have a malignant natural history and can be difficult
to treat if parent vessel deconstruction is not feasible. These lesions often involve a long …

OBJECTIVE: Spinal dural arteriovenous fistulae (Type I spinal AVMs) are the most common
type of spinal vascular malformations. The optimal treatment strategy has yet to be defined, …

OBJECTIVE: Wingspan (Boston Scientific, Fremont, CA) is a self-expanding stent designed
specifically for the treatment of symptomatic intracranial atheromatous disease. The current …

Vertebral hemangiomas, unlike most bone lesions, show increased signal on T1- and T2-weighted
magnetic resonance (MR) images. To define the basis for these signal characteristics…