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Clinical Trial Summary

The purposes of this study are:

1. To determine the sensitivity and specificity of the Near-Infrared Spectroscopy (NIRS) measurements for identifying intracranial hematomas due to trauma.

2. To determine the reproducibility of the Near-Infrared Spectroscopy (NIRS) measurements with different operators and at different centers


Clinical Trial Description

The principle used in identifying intracranial hematomas with Near-infrared spectroscopy (NIRS) is that extravascular blood absorbs Near-infrared light more than intravascular blood since there is a greater (usually 10-fold greater) concentration of hemoglobin in the acute hematoma then in the brain tissue where blood is contained within vessels. Therefore, the absorbance of Near-infrared light is greater (and therefore the reflected light less) on the side of the brain containing a hematoma, than on the uninjured side.

The NIRS sensor is placed successively in the left and right frontal, temporal, parietal, and occipital areas of the head and the absorbance of light at selected wavelengths is recorded. The difference in optical density in the different areas is calculated. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT00576147
Study type Interventional
Source InfraScan, Inc.
Contact
Status Completed
Phase N/A
Start date July 2006
Completion date January 2011

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