We have a Toshiba scanner and the Hounsfield numbers required on Module 1 (film page 1, box 4) are out of range when we use a large scan field of view. Can we use a smaller scan field of view?
For film page 1, box 4 CT # accuracy, a facility can use a scan field of view or patient size appropriate to the phantom. Even though the clinical abdomen protocol uses a large scan field of view, it is acceptable to use a smaller field of view appropriate for the size of the phantom for the CT # accuracy phantom image.
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