How can the reliability of preventing phase wrap artefact be improved?

Improving the reliability of preventing phase wrap artefact is effectively achieved by increasing the Field of View (FOV) through phase oversampling. Phase wrap artefact occurs when a region of the imaged object extends beyond the limits of the FOV in the phase encoding direction, causing an incorrect representation of the spatial information.

By increasing the FOV, particularly in the phase encoding direction, you ensure that all relevant areas of the anatomy being scanned are contained within the imaging volume. This minimizes the risk of wrapping effects occurring because all signals are appropriately captured within the defined imaging area. Phase oversampling allows for additional acquisition of data points that exceed the specified FOV, which can provide a more accurate representation of the anatomy without misrepresentation or artefacts.

Thus, utilizing phase oversampling effectively counters the potential for phase wrap artefact by ensuring complete coverage of the area being studied.