Fluke Biomedical 76-414 - Manual (Page 13)

Operation
§1020.33 Computed Tomography (CT) Equipment
2
2-7
J. CT Number Mean and Standard Deviation
1) A method shall be provided to calculate the mean and standard deviation of CT numbers for an
array of picture elements about any location in the image. The number of elements in this array
shall be under user control.
2) The manufacturer shall provide specific instructions concerning the use of the method provided for
calculation of CT number mean and standard deviation in addition to other information provided
according to § 1020.30(h).
(The information collection requirements in paragraphs (c), (d), (g), and (j) were approved by the Office
of Management and Budget under control number 0910-0025)
[49 FR 34712, Aug. 31, 1984; 49 37381, Sept. 24, 1984, as amended at 49 FR 47388, Dec. 4, 1984; 56
FR 36098. Aug. 1,1991]