Wilderness first aid: is there an "industry standard"?
There exists no uniform industry standard for first aid training and certification of wilderness leaders. The epidemiology of backcountry injuries as well as what is currently known about clinical skills retention indicate that there may be little evidence basis for much of current practice.
In the early phase of acute ischemic stroke, BHI after SonoVue bolus injection is a useful ultrasound tool for analyzing cerebral perfusion deficits at the patient's bedside. BHI data correlate with the definite area of infarction and outcome after 4 months.