1. A method for imaging an object, the method comprising: (a) providing a scanner for scanning the object using spiral scanning; (b) using the scanner to collect a plurality of spiral scans of the object; (c) acquiring a low-resolution field map from the plurality of spiral scans; (d) acquiring image data from the object by scanning the object with the scanner; (e) performing automatic off-resonance correction on the image data in accordance with the low-resolution field map; and (f) imaging the object in accordance with the automatic off-resonance correction.