Postprocessing conventional vs. fast spin echo MR images.

By postprocessing MR images on a medical imaging workstation, technologists can simultaneously visualize anatomy in the coronal, sagittal and transverse planes and use "melt-through" to visualize anatomy at any orientation desired. In this article, researchers compare the post-processing of pelvic images obtained through conventional and fast spin echo MR techniques. The research showed that the combination of fast spin echo techniques and post-processed MR images provided more accurate 3-D visualization.

Dimensions of the optic nerves, chiasm, and tracts: MR quantitative comparison between patients with optic atrophy and normals.

Objective: The dimensions of the optic nerves, chiasm, and tracts were determined in normal patients and in patients with clinical evidence of optic atrophy to establish whether there was a significant difference between the two groups.

Materials And Methods: The authors analyzed thin section coronal MRI of 110 patients. Seventy-seven patients were normal, 20 had visual impairment without funduscopic evidence of optic atrophy, and 13 had visual impairment with funduscopic evidence of optic atrophy.

Aortic dissection: atypical patterns seen at MR imaging.

Aortic dissection is typically manifested by an intimal flap separating true and false lumens. Atypical patterns lacking an intimal flap can occur, however, and are less well recognized. In this study, the authors review their experience with atypical patterns at magnetic resonance (MR) imaging.

T2 values in the human brain: comparison with quantitative assays of iron and ferritin.

Magnetic resonance (MR) imaging with a whole-body imager was performed in 10 fresh, unfixed whole human brains selected randomly from cadavers. All subjects were neurologically intact before death. T2 time constants were measured within the caudate nucleus, putamen, globus pallidus, cortical gray matter, subcortical white matter, and optic radiation.

Compliance with mammography recommendations at the work site.

Mammography was recommended to 212 women, according to American Cancer Society guidelines, at the time of a work site-offered periodic health exam (PHE). Sixteen weeks later telephone follow-up determined compliance. A total of 56 (26%) had complied.