Femoral Head is Not Outlined/ Hip Edge Detection Issues

 

On the left the femoral head is not outlined. In the right panel the femoral head is outlined.

Case Description:

The inclusion of the femoral head helps the analysis algorithm to correctly identify the midline placement, and other regions are placed based on the midline. In this case, on the left, the femoral head is not outlined. The correct scan is on the right. In this case, this change in edge detection did not affect femoral neck or total hip measurements.  The default size of the femoral neck is generally 49 x 15 pixels.  There are three corners of th femoral neck box in soft tissue and the 48 x 15 size should not affect the femoral neck measurement.

Credit:

Sarah L Morgan, MD, RD, CCD, The University of Alabama at Birmingham

References:
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