More specifically, {HEAD ~ a non continuous circumferential treatment} may be achieved by superimposing treatments undertaken along multiple radial or cross sectional planes of {TAIL ~ the artery A} that are separated along the lengthwise dimension L of the artery, rather than performing a continuous circumferential treatment along a single radial plane or cross section of the artery 
More specifically , { HEAD ~ a non continuous circumferential treatment } may be achieved by superimposing treatments undertaken along multiple radial or cross sectional planes of { TAIL ~ the artery A } that are separated along the lengthwise dimension L of the artery , rather than performing a continuous circumferential treatment along a single radial plane or cross section of the artery
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH