Intracranial Hematoma Detection by Near Infrared Spectroscopy in a Helicopter Emergency Medical Service: Practical Experience

Figure 2

Example of an Infrascanner measurement in a healthy volunteer. The 4 bilateral measurement locations (letter code: F, frontal; T, temporal; P, parietal; O, occipital) results in 8 individual measurement spots. The green dots indicate that no hematoma is detected and the green numbers the neglectable optical left/right differences.