Nuclear medicine (NM) multi-head imaging system includes a plurality of detector units coupled to a gantry. The detector units configured to face toward a center of the bore and including a series of first detector units and a second detector unit. The system also includes at least one processor that, when executing programmed instructions, performs the following operations. The at least one processor rotates the first detector units such that the first detector units face in a common first direction that is generally toward the bore. A working gap exists between the detector FOVs of the respective first detector units. The at least one processor rotates the second detector unit such that the second detector unit faces in a second direction that is opposite the first direction. The detector FOV of the second detector unit covers the working gap.
