Tissue Equalization is an advanced application that improves contrast and visibility in over-penetrated and under-penetrated regions of an image without compromising the contrast in other regions of interest. In combination with the GE Healthcare flat panel digital detector, Tissue Equalization allows display of more information collected in a single shot, reducing re-takes and increasing throughput

Over-penetrated Regions
An over-penetrated region in an image results from X-rays passing through a relatively less dense region of the anatomy such as soft tissue. Over-penetrated regions of an image appear darker with reduced contrast. Using Tissue Equalization, the contrast in such regions can be enhanced to improve visualization of soft-tissue. Tissue Equalization can also be used to enhance vessel contrast in lungs.

Under-penetrated Regions
An under-penetrated region in an image results from insufficient X-rays passing through relatively dense anatomical regions. For example, anatomy containing dense tissue and bone result in under-penetrated images. Under-penetrated regions of an image such as the cervical and thoracic spine appear white. Using Tissue Equalization, the overlaying anatomy can be made grayer making the underlying spine more visible. A hand image can similarly be displayed with improved bone contrast. This makes Tissue Equalization an invaluable tool in visualizing the entire bone field.