1. A method for identifying a rotational orientation of an implanted electrical stimulation lead, the method comprising: obtaining a plurality of radiological images of the lead, the lead comprising a lead body, a plurality of segmented electrodes disposed along a distal portion of the lead body, and an asymmetric marker disposed along the distal portion of the lead body and comprising a longitudinal band that extends around a portion of a circumference of the lead body and defines a marker window extending around a remainder of the circumference of the lead body and opposite the longitudinal band, wherein the asymmetric marker and lead body are formed of different materials that are distinguishable from each other in the radiological images, wherein each segmented electrode extends around no more than 50% of a circumference of the lead body; generating an isosurface image from the plurality of radiological images and displaying the isosurface image on a display device, wherein the isosurface image comprises an image of the longitudinal band of the marker; identifying a bulge in the isosurface image corresponding the longitudinal band of the marker; and determining a rotational orientation of the lead based on the rotational orientation of the bulge in the isosurface image.