B 12: Lower extremity CT without contrast (Conformis protocol) Indications: knee replacement planning, contraindication to MRI Contrast parameters None. 1) Hip: through femoral head only. Region of scan 2) Knee: top of patella to 3 cm below tibial plateau. 3) Ankle: malleoli through talus. Scan delay None. Detector collimation 16 x 0.75 mm, 64 x 0.6 mm, 16 x 0.6 mm (128 slice) 2.5 mm at 2.5 mm intervals. 1.5 mm at 0.5 mm intervals; 1 mm sagittal and Slice thickness coronal reformats. 2.5 mm at 2.5 mm intervals. Filming B70s kernels Comments: Patient positioning: supine, feet first, toes pointing straight up. If contralateral knee has implant, elevate that knee to mitigate artifact. Recommended FOV: 25-30 cm for hip, 20-25 cm for knee, 15-20 cm for ankle.
B 12: Lower extremity CT without contrast (Conformis protocol) Indications: knee replacement planning, contraindication to MRI Contrast parameters None. Region of scan 1) Hip: through femoral head only. 2) Knee: top of patella to 3 cm below tibial plateau. 3) Ankle: malleoli through talus. Scan delay None. Detector collimation 16 x 0.75 mm, 64 x 0.6 mm, 16 x 0.6 mm (128 slice) Slice thickness 2.5 mm at 2.5 mm intervals. 1.5 mm at 0.5 mm intervals; 1 mm sagittal and coronal reformats. 2.5 mm at 2.5 mm intervals. Filming B70s kernels Comments: Patient positioning: supine, feet first, toes pointing straight up. If contralateral knee has implant, elevate that knee to mitigate artifact. Recommended FOV: 25-30 cm for hip, 20-25 cm for knee, 15-20 cm for ankle.
Protocols-MSK-CT-6-2016.docx