Make accurate comparisons between life-size (what you see) and image-size (what you get) The 3 inch ruler is specifically designed for Teleradiology, CR and DR imaging where the image size does not always match the life-size anatomy.
Place a marker on the CR or DR Plate and capture the radiographed anatomy. The image of the unique 3 inch ruler gives an immediate visual and measurable cue as to the size of the screen image compared to the life size anatomy.
Uses High Density Lead Numbers
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