Final answer:
Use a lateral localizer image to set up axial slices parallel to the plane of a specific lumbar disc in MRI.
Step-by-step explanation:
To set up axial slices angled parallel to the plane of a specific lumbar disc, a localizer image in a lateral orientation should be used. The lateral view allows visualization of the individual lumbar discs and facilitates alignment with the disc of interest. The orientations of slices are essential in magnetic resonance imaging (MRI) to provide accurate diagnostic images, particularly when assessing detailed structures such as intervertebral discs.