Figure 8From: Non-isotropic noise correlation in PET data reconstructed by FBP but not by OSEM demonstrated using auto-correlation functionResults of the elliptical torso phantom study. Vertical (dash point) and horizontal profile (dash star) through the centre of the ACF image obtained with 2D (upper) or 3D acquisition (lower) reconstructed using OSEM with 6 mm Gaussian filter.Back to article page