CT stair-step artifact
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The CT stair-step artifact is found in straight structures which are oriented obliquely with respect to movement of the table and appear around the edges of sagittal and coronal reformatted images when wide collimations and non-overlapping reconstruction intervals are used.
Solution
This can be minimized by, using smaller collimation and overlapping reconstruction in helical imaging.
See also
-<p>The<strong> CT stair-step artifact</strong> is found in straight structures which are oriented obliquely with respect to movement of the table and appear around the edges of sagittal and coronal reformatted images when wide collimations and non-overlapping reconstruction intervals are used.</p><h4>Solution</h4><p>This can be minimized by, using smaller collimation and overlapping reconstruction in helical imaging.</p><h4>See also</h4><ul><li><a title="CT artifacts" href="/articles/ct-artifacts">CT artifacts</a></li></ul><p> </p>- +<p>The<strong> CT stair-step artifact</strong> is found in straight structures which are oriented obliquely with respect to movement of the table and appear around the edges of sagittal and coronal reformatted images when wide collimations and non-overlapping reconstruction intervals are used.</p><h4>Solution</h4><p>This can be minimized by, using smaller <a title="collimation" href="/articles/collimation">collimation</a> and overlapping reconstruction in helical imaging.</p><p> </p>
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