Using Virtual Reality to Improve Performance and User Experience in Manual Correction of MRI Segmentation Errors by Non-experts.

Segmentation of MRI scans is a critical part of the workflow process before we can further analyze neuroimaging data. Although there are several automatic tools for segmentation, no segmentation software is perfectly accurate, and manual correction by visually inspecting the segmentation errors is required. The process of correcting these errors is tedious and time-consuming, so we present a novel method of performing this task in a head-mounted virtual reality interactive system with a new software, Virtual Brain Segmenter (VBS).

Cytomegalovirus infection in patients receiving immunosuppressive therapy for rheumatologic disorders.

Evidence of cytomegalovirus infection was sought in 131 patients attending a rheumatology clinic, 211 blood donors, and 14 patients before and after the initiation of cytotoxic immunosuppressive therapy for a rheumatologic condition. The titer of complement-fixing antibody to cytomegalovirus was significantly related to age and sex, but not to rheumatologic disease. After adjustment for age and sex differences, the proportion of patients treated with corticosteroids who had measurable antibody was lower than that of controls (P less than 0.

Cytomegalovirus infection in children undergoing open-heart surgery.

A group of 124 children undergoing open-heart surgery was followed prospectively in order to estimate the risk of cytomegalovirus (CMV) infection due to transfused blood.Ninety-three patients (75%) had complement fixation (CF) titers of < 1:4 against CMV on admission. Of this seronegative subgroup, nine patients (9.