1. A method for optical coherence tomography (OCT) imaging, comprising: obtaining imaging data of a region of interest of a subject, the region of interest including at least one anatomical marker; generating a mask of the anatomical marker based on the imaging data; determining a scan path based at least in part on the mask, the scan path traversing at least a portion of an arbitrary enclosing shape at least partially fitted around the mask; and acquiring three-dimensional (3D) optical coherence tomography (OCT) scan data corresponding to the scan path.