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Imaging tasks and phantoms for investigation of task-driven imaging performance. (a) Sphere detection task in a pelvis phantom. (b) Directional line pair detection task in a head phantom. Phantoms (a) and (b) were used to investigate the joint optimization of tube current and reconstruction kernel. (c) The spherical stimulus from (a) inserted posterior to a simulated embolization coil in a head phantom for investigation of optimal orbital tilt.
