Selected image acquisition technique to optimize patient model construction

An imaging system (16) comprising an image detector (38) movable within an annular gantry housing (34) encircling a region of a subject (14), a memory system configured to store a start position, an end position, and a non-circular path from the start position to the end position of the image detector (38) and a processor (22, 26) configured to execute instructions from the memory system to drive movement of the image detector (38) from the start position to the end position along the non-circular path, detect radiation with the image detector (38) at a selected rate as the image detector (38) moves along the non-circular path, and form a three-dimensional reconstruction of the region of the subject (14) based at least in part on the detected radiation.