Respiratory Motion Compensation Using Diaphragm Tracking for Cone-Beam C-Arm CT: A Simulation and a Phantom Study

Table 1

Triangulation errors (in mm) based on projections of the real diaphragm top. Angular offset of the triangulated image pair in brackets.

	Mean 3D	Std. Dev. 3D	Mean 𝑍	Std. Dev. 𝑍
Rect. Iter. (90^∘)	0.20	0.06	0.10	0.06
Rect. Iter. (30^∘)	0.32	0.15	0.10	0.06
Rect. Iter. (10^∘)	0.89	0.60	0.11	0.08
Iterative (90^∘)	2.22	0.97	2.22	0.96