“
“The pathogenesis and diagnostic methods for idiopathic normal pressure

hydrocephalus (iNPH) have been active areas of research in recent years. This study was performed to determine whether there is a venous return abnormality in the intracranial circulation of patients with iNPH. The subjects were 20 patients with iNPH (Group N) and 24 normal controls (Group C). MR venography (MRV) was performed at the superior sagittal sinus 2 cm above the confluence of the sinuses, and the flow velocities were compared between Groups N and C. During normal breathing, the maximum velocities were significantly lower in Group N (18.8 cm/second) than in Group C (22.9 cm/second; (P < .01). During the Valsalva maneuver, compared to normal breathing, the velocity decreased in both groups, but both the maximum CH5424802 (Max V) and minimum (Min V) velocities were significantly ABT-263 cost lower in Group N than in Group C (P < .01). The flow velocity at the superior sagittal sinus was lower and the flow velocity during the Valsalva maneuver decreased more in patients with iNPH than in controls. The results may reflect the presence of abnormal intracranial venous flow in iNPH. J Neuroimaging 2011;21:365-369. "
“Requests for after-hours emergent spine MR imaging seem to be increasing. We sought to review the

trend in after hours spine MRI utilization at our institution and to determine how these results impacted therapeutic intervention. Following Institutional Review Board approval, reports from 179 after hours spinal MRI’s performed over the past 13 years were obtained and Lepirudin the relevant electronic medical records were reviewed. Emergent after hours spine MRI utilization increased from 7 per year to 23 over 13 years. Fifty-eight percent (104/179) had significant findings. Twenty-nine percent (52/179) of all patients imaged underwent surgery to treat pathologies identified on MR. Surgery was performed in only 2% (4/179) of these patients within 3 hours and 6% (10/179) within 6 hours of MRI completion. Five percent (8/179) had findings

that were treated with radiation therapy and in 78% of these it was performed within 6–12 hours. Of those in whom steroids or antibiotics were initiated, 41% and 50% were treated within 3 hours of MR scanning, respectively. Clinical use of emergent after hours spine MRI is steadily increasing at our institution. While MR imaging often discerned significant pathologies, performing these emergent studies rarely resulted in immediate surgical or radiotherapeutic intervention. “
“Distinguishing BNCT from chordoma with imaging is critical because of the profound differences in prognosis and management. Yet few reports define the variable imaging characteristics of BNCT. This study aims to evaluate the prevalence and characteristics of BNCT. A total of 916 patients with 64-section CT and 1.