This provide quantitative data to support qualitative assessments of tissue contrast behavior in {HEAD ~ each} of {TAIL ~ the images} which acts as a basis for color coding 
This provide quantitative data to support qualitative assessments of tissue contrast behavior in { HEAD ~ each } of { TAIL ~ the images } which acts as a basis for color coding
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH