Figure 4From: Real time noninvasive assessment of external trunk geometry during surgical correction of adolescent idiopathic scoliosis Setup of the optoelectronic camera system in the operating room. A) Patient positioning on the Relton-Hall frame and initial landmark identification using magnets. B) The camera is fixed on the ceiling using an articulated arm and oriented to provide the optimal coverage of the measurement volume over the patient's trunk.Back to article page