Siemens MAMMOMAT Inspiration - Test 2: Artifact Detection; Objective of Artifact Detection Test; Required Equipment for Artifact Detection; Procedure for Artifact Detection

Test 2: Artifact Detection
20 Quality Control Manual
SPB7-330.640.01.01.02
Test 2: Artifact Detection
Objective
To determine if the detector is dusty, damaged or shows artifacts of any kind.
Required Equipment
a) Collimator mountable PMMA phantom
b) Compression plate 24 x 30 cm
2
Procedure
1. Create a new patient record in the local database.
Fill in: Last Name: Test_Two
First Name: Artifact Detection
Patient ID: day+time when the test is performed
(example: 200707071030)
DOB: 05 05 1955
Gender: Other
2. Select procedure QC-raw.
3. Select exposure technique MANUAL
28 kV
90 mAs
target/filter Mo/Mo
grid in
auto decompression off
OPCOMP off
Change all projection views to L-CC
4. Mount PMMA phantom close to collimator.
5. Mount compression plate and perform compression.
6. Perform exposure.
7. Look at the image for clinically relevant artifacts, e.g. defective pixels, clusters of
defective pixels or defective lines/columns. Use magnification tool, select
acquisition size, adapt windowing values. If problems regarding viewing
conditions appear send image to viewing station for further evaluation.
8. Repeat step 3 to 7 for target/filter combinations Mo/Rh and W/Rh.
9. If artifacts are visible make sure that the detector is free of dust, perform a new
calibration, and repeat test.