New images to be analyzed by the CAD schemes are assigned {HEAD ~ an image category} based on {TAIL ~ their image quality} and therefore are analyzed with an optimal set of rules for that type of image quality 
based on
New images to be analyzed by the CAD schemes are assigned { HEAD ~ an image category } based on { TAIL ~ their image quality } and therefore are analyzed with an optimal set of rules for that type of image quality
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH