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9 IEC61223: Acceptance Test
9 IEC61223: Acceptance Test
A description of the software utilities for the execution of acceptance test can be found in the “ NNT User
Manual” document .
Here are reported specific instructions to perform such tests (please refer to norm IEC61223-3-5) along with
the corresponding paragraph from the norm.
At the end of this chapter a table containing the reference value can be found.
✔
Positioning of the patient support [paragraph 5.1]
Not applicable.
✔
Patient positioning accuracy [paragraph 5.2]
The NewTom 5G is equipped with two cross shaped laser pointer aimed to help the patient
positioning. The horizontal line identify the axial plane of the acquired volume, the vertical line
identify the sagittal plane of the acquired volume.
✗
Axial patient positioning accuracy [paragraph 5.2.1]
Position an object along the axial plane identified by the horizontal line and scan it by using
the [6x6] HiRes FOV (refer to the
"NNT User Manual" for data analysis).
✗
Sagittal and coronal patient positioning light [paragraph 5.2.2]
Position an object along the sagittal plane identified by the vertical line and scan it by using
the [6x6] HiRes FOV (refer to the
"NNT User Manual" for data analysis).
✔
Tomographic section thickness [paragraph 5.3]
✗
Tomographic section thickness for axial scanning [paragraph 5.3.1]
Refer to "NNT User Manual".
✗
Tomographic section thickness for helical scanning [paragraph 5.3.2]
Not applicable.
✔
Dose [paragraph 5.4]
Take required scans for each modality according to IEC 60601-2-44: 2009.
The machine calculates automatically the loading factors, according to the scanned object. There is
no way to select manually loading factors for a scan.
✔
Noise, mean CT number and uniformity [paragraph 5.5]
Refer to "NNT User Manual".
✔
Spatial resolution [paragraph 5.6]
Refer to "NNT User Manual".
NewTom 5G – User Manual 9-1