Table of Contents
Editorials
Perspectives
Editorials
Memorial
Review Articles
Methodologic Perspectives
Patient Safety
Health Care Reform Vignette
Brain
- Diffusion Measures Indicate Fight Exposure–Related Damage to Cerebral White Matter in Boxers and Mixed Martial Arts Fighters
Boxers and mixed martial arts athletes underwent brain DTI and the results were correlated with number of fights, knockouts, age, weight, and years of education. Total knockouts in boxers increased diffusivity in the corpus callosum, cingulate, pericalcarine, precuneus, and amygdala, while in martial arts athletes only the posterior cingulate was abnormal. Thus, fight exposure but not the number of fights can be used to predict microstructural brain damage.
- Use of FLAIR Imaging to Identify Onset Time of Cerebral Ischemia in a Canine Model
After an infarction-inducing procedure, 20 dogs were imaged at 3, 4, 5, 6, and 24 hours with FLAIR and DWI. A mismatch between the 2 sequences (positive DWI and negative FLAIR) was found to reliably predict the time of infarct onset. By 6 hours, 95% of dogs had FLAIR abnormalities and by 24 hours all did. However, at 3 hours only 15% of dogs showed positive FLAIR studies. These results could serve as guidelines to estimate the time of onset of ischemic events.
- Preferential Location for Arterial Dissection Presenting as Golf-Related Stroke
Seven patients with golf-related strokes were imaged and the literature was reviewed for similar cases, which generated a total 14 such occurrences. The most common time of symptom onset occurred during the golf swing and over one-half of patients damaged an extracranial vertebral artery with most dissections involving the right side. Of a total of 14 dissections, 7 patients had complete symptom resolution and returned to normal.
Interventional
Commentary
