Archive for month: April, 2012

Mechanical Ventilators


17 April, 2012 | intensive care

Ever since the introduction of the Iron Lung in treating polio victims, mechanical ventilators have kept patients alive during times of respiratory failure. Mechanical ventilators are found in the Intensive Care Unit (ICU), where they are used to support respiratory function in patients with respiratory failure. Today’s hospitals utilize positive pressure ventilators that deliver a [...]

New Developments In fMRI


8 April, 2012 | imaging equipment, MRI

On November 1, 1991, the first paper on functional MRI (fMRI) was published in the journal, Science. Since then, fMRI has helped to develop a surge of interest in cognitive neuroscience. Many world-class research centers are dedicated to using fMRI as the main tool of investigation. fMRI has not only focused on cognitive research but [...]

The Technetium-99 Problem


2 April, 2012 | nuclear medicine

From 2009 to 2010, the world experienced a severe, worldwide shortage of the radioisotope technetium-99 (tech99) when the Chalk River Plant in Ontario, Canada shut down for more than a year due to water leaks. The Canadian plant, along with one in Petten, Netherlands, is responsible for two thirds of the world supply of the [...]