Can magnetic resonance imaging replace single photon computed tomography and computed tomography in detecting bony invasion in patients with oral squamous cell carcinoma?

Aim: To determine whether MRI can replace SPECT and CT in detecting bone invasion in patients with oral SCC.

Materials And Methods: A retrospective and independent review of the MRI, SPECT, and when available CT, images of 23 patients with oral malignancy who had formal bone resection was undertaken. Our gold standard was histopathology.

White matter lesions on magnetic resonance imaging and their relationship with vascular risk factors in memory clinic attenders.

Background: The association between white matter lesions on magnetic resonance imaging (MRI) and the presence of vascular risk factors has been investigated in different populations, and results have varied widely. However, this relationship has not been adequately addressed in memory clinic attenders who have relatively early cognitive impairment.

Objectives: This study was undertaken to determine the relationship between the severity of white matter lesions and vascular risk factors in elderly subjects referred to a Memory Clinic, irrespective of their diagnoses.

Efficacy of transmyocardial laser revascularization and thoracic sympathectomy for the treatment of refractory angina.

Background: Transmyocardial laser revascularization (TMR) is an effective treatment for relief of refractory angina. This benefit may be mediated by increase in myocardial perfusion or by cardiac denervation. We investigate the efficacy of TMR and thoracic sympathectomy (TS) for relief of angina and whether any clinical benefit is associated with enhanced myocardial perfusion.

Serum uric acid levels in optic neuritis.

Uric acid, an antioxidant, is reduced in multiple sclerosis (MS). Patients with gout have a reduced incidence of MS. Optic neuritis (ON), often the first manifestation of MS, is not known to be associated with reduced uric acid.