Data Acquisition Protocol CT scanning protocol · Data Acquisition Protocol. CT scanning protocol....
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Phone: +1 866 596 2022 (toll free) Website: stryker.com Address: 5676 Greenwood Plaza Blvd. Ste. 200 Greenwood Village, CO, 80111, USA Copyright © 2019 Stryker Customer Service: Stryker Sports Medicine Data Acquisition Protocol CT scanning protocol Imaging requirements Pelvis + proximal femur Knee Number of slices below lesser trochanter A scan must include at least the bilateral pelvis and proximal femur. If a knee scan is included femoral torsion will be measured. In such a case the pelvis and knee need to be scanned in the same frame of reference. • Required slice increment / slice thickness: ≤1 mm. No gap. • Recommended field of view (FOV): Include the entire bilateral pelvis and at least 180 mm below the lesser trochanter. • Minimally required FOV: Bilateral scan from at least the left and right anterior superior illiac spines (ASIS) to at least 40 mm below the lesser trochanter. • Required slice increment / slice thickness: ≤ 5 mm. No gap. • Recommended FOV: Include bilateral knees from at least the joint line between the femur and the tibia to 100 mm proximal on the femur. • Minimally required FOV: Unilateral knee scan. Slice interval spacing, mm 0.500 0.625 0.750 0.875 1.000 Distance, mm 180 180 180 180 180 Number of slices 360 288 240 206 180 180 mm Pelvis / Femur Knee Recommended FOV Required FOV 40 mm 100 mm ASIS ASIS HipMap Femoroacetabular Impingement Analysis Recommended FOV Required FOV Email: [email protected]
Transcript of Data Acquisition Protocol CT scanning protocol · Data Acquisition Protocol. CT scanning protocol....
Phone:+1 866 596 2022 (toll free)
Website: stryker.com
Address: 5676 Greenwood Plaza Blvd. Ste. 200 Greenwood Village, CO, 80111, USA
Copyright © 2019 StrykerCustomer Service: Stryker Sports Medicine
Data Acquisition Protocol
CT scanning protocolImaging requirements
Pelvis + proximal femur
Knee
Number of slices below lesser trochanter
A scan must include at least the bilateral pelvis and proximal femur. If a knee scan is included femoral torsion will be measured. In such a case the pelvis and knee need to be scanned in the same frame of reference.
• Required slice increment / slicethickness: ≤1 mm.No gap.
• Recommended field of view (FOV):Include the entire bilateral pelvis and atleast 180 mm below the lesser trochanter.
• Minimally required FOV:Bilateral scan from at least the left andright anterior superior illiac spines(ASIS) to at least 40 mm below thelesser trochanter.
• Required slice increment / slicethickness: ≤ 5 mm.No gap.
• Recommended FOV:Include bilateral knees from at least thejoint line between the femur and the tibiato 100 mm proximal on the femur.
• Minimally required FOV:Unilateral knee scan.
Slice interval spacing, mm0.5000.6250.7500.8751.000
Distance, mm180180180180180
Number of slices360288240206180
180 mm
Pelvis / Femur
Knee
Rec
omm
ende
d FO
VR
equi
red
FOV
40 mm
100 mm
ASISASIS
HipMap Femoroacetabular Impingement AnalysisR
ecom
men
ded
FOV
Req
uire
d FO
V
Email:[email protected]
Copyright © 2019 Stryker
Phone:+1 866 596 2022 (toll free)
Website: stryker.com
Data Acquisition Protocol
CT scanning protocolPelvis / Femur
Knee
General scan requirements
General scan recommendations
Imaging acceptance
•
• Field of view: ≤ 500 mm
• Reconstruction kernel: Bone
• Energy settings: 120-140 kV / 200-250 mA
• Patient position: supine
• Minimize pelvic obliquity:-
-
• Scans that fullfill the requirements andrecommendations will be processed.Scans that deviate from recommendationsare subject to further evaluation and mayneed to be rejected.
1 mm
5 mm
512 pixels
512 pixels
1 / 5 mm
HipMap Femoroacetabular Impingement Analysis
Ensure that the hips and knees are in NEUTRAL alignment: no excessive internal or external rotationEnsure on the scout image that the relative heights of the ASIS are symmetric
• No metal-induced image artifacts
Original axial slices using helical (spiral) scanning
• Data format: DICOM 3 compatible
• No compression
• No annotations embedded in the files
• No motion artifacts
1000902900 Rev. A
Customer Service: Stryker Sports Medicine
Email:[email protected]
Address: 5676 Greenwood Plaza Blvd. Ste. 200 Greenwood Village, CO, 80111, USA
