Fig. 2

Visualization of DICOM (blue boxes, left) and STL (red boxes, right) landmark measurements. LM1: Longest distance between the iliac crests, LM2: Angle between the anterior surface of the fifth lumbar vertebra (L5) and the anterior surface of the first sacral vertebra (S1), LM3: Distance between the anterior superior iliac spines, LM4: Distance between the upper edge of the symphysis and the promontory, LM5: Distance between the lower edge of the symphysis and the promontory, LM6: Distance between the lower edge of the symphysis and the tip of the coccyx, LM7: Distance between the ischial tuberosities, further information about the orientation of the measurement planes can be found in Fig. 10 of the Appendix