Rapid dynamic CT scanning to distinguish schizophrenic from normal subjects

Area of Science:

• Neuroimaging
• Radiology
• Psychiatry

Background:

• Schizophrenia is a complex psychiatric disorder with debated neurobiological underpinnings.
• Previous research suggests potential alterations in cerebral blood flow and blood-brain barrier (BBB) function in schizophrenia.

Purpose of the Study:

• To investigate the utility of dynamic computerized axial tomography (CT) density-time curves in identifying abnormal brain regions in individuals with schizophrenia.
• To compare these patterns between schizophrenic patients and healthy controls.

Main Methods:

• Dynamic CT scans were performed following contrast material injection in both schizophrenic and control groups.
• Density-time curves were analyzed, specifically identifying 'plateau curves' where density remained high after peak rather than decreasing.

Main Results:

• Five out of ten individuals diagnosed with schizophrenia exhibited two or more plateau curves.
• None of the eleven control subjects displayed two or more plateau curves.
• The presence of plateau curves was significantly more common in the schizophrenic group.

Conclusions:

• Dynamic CT density-time curves can differentiate schizophrenic patients from healthy controls.
• Plateau curves may indicate underlying physiological abnormalities in schizophrenia, potentially related to increased blood-brain barrier permeability.