Lunar DPX-IQ, Operator'S Manual, Page: 77 / 166

DPX-IQ Operator’s Manual Femur B-9
B.4 Analysis Information
During a femur image analysis, refer to the information that follows to help you
complete the analysis procedure. Follow the instructions given ONLY if the program
did not position ROIs correctly.
B.4.1 Insufficient Tissue Messages
One of the messages that follow can show on the Bone Results screen: “Insufficient
Pelvis Separation”; “Insufficient Tissue Above Neck”; or “Insufficient Tissue Below
Neck”. Typically, these messages occur because of uncommon patient anatomy or
because the scan was acquired incorrectly (because of a bad starting location, aborting
too soon, etc.). If the Bone Results Screen shows one of these messages, refer to the
procedure in section B.1 to complete the scan again.
B.4.2 Examine Neck ROI Position
The Bone Results screen shows four ROIs (figure B-10):
➊
Neck ROI;
➋
Ward's
Triangle ROI;
➌
Shaft ROI; and
➍
Trochanteric ROI.
The program lets you change the position of the Neck ROI only. The other ROIs are
positioned automatically by the program.
Figure B-10. Femur ROIs
Correct Neck ROI Position
Refer to the information that follows to make sure the position of the Neck ROI is
correct (figure B-11):
➊
soft tissue should be contained in all four corners of the ROI.
➋
the ROI is perpendicular to the femoral neck.
➊
➌
➋
➍