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Whole body imaging (WBI) refers to the internal display of the entire body in a single procedure.
It may refer to one of two types of Full body scanner technologies used for security screening such as in airports:
- Millimeter wave scanner
- Backscatter X-ray
- Infra-red thermal difference detection
In medical imaging, it may also refer to full-body CT scan or magnetic resonance imaging.
Source of the article : Wikipedia