cross section 40 of the indication member 14 will appear in the scanning image 36 indicating an orientation of the patient 39 s body 34 with respect to the scanning image 36 14 in yet a further variant as illustrated in fig1 the means 30 for positioning the indication member 14 adjacent the patient 39 s body 34 includes a hand mounted positioning device 270 the hand mounted device 270 has a palm cover 274 thumb opening 278 and a retaining strap 282 the strap 282 is attached across a back of a patient 39 s hand not shown the hand mounted device 270 is shaped to fit only one hand of the patient the indication member 14 is attached to the hand mounted positioning device 270 and extends downwardly from it the hand mounted positioning device 270 is located on the patient 39 s hand with the indication member 270 located adjacent an identified side 154 of the patient 39 s body 34 when the linear indication member 14 is located adjacent the patient 39 s body 34 and a sectional scanning image 36 is produced a cross section 40 of the indication member 14 will appear in the scanning image 36 indicating an orientation of the patient 39 s body 34 with respect to the scanning image 36 15 in another variant as illustrated in fig1 the indication member 14.