CT HIP
INDICATIONS: Trauma, fracture, dislocation, hip pain, pre-surgical
PATIENT PREP: None
IV CONTRAST: None
ORAL CONTRAST: None
POSITIONING: Feet first supine, Feet internally rotated
TOPOGRAMS: AP. Range: 2” above acetabulum through lesser trochanter. 35 mA, 120 kV
SCAN TYPE: Spiral/Helical
SCAN RANGE: 2” above acetabulum through lesser trochanter.
NOTES: Scan completely through prosthesis.
Send Thin Slice Volume Source Images: Recon 0.6 x 0.6mm to PACS.
Check if referring physician has specific orders
ALARA – Keep radiation dose As Low As Reasonably Achievable.
* 3D Only if Ordered by Referring Physician or requested by Radiologist. Obtain order for 3D from referring physician.
For 3D Only: Send Recon 3D 0.6 x 0.3mm to Vital Workstation for 3D and call Spokane.
HIP
ScanRange / Scan Direction
Scan Type / Respiration / Scan
Delay
(Seconds) / CARE
DOSE
4D / Quality
Reference
mAs / CARE
kV / Quality
Reference
kV / Detector Configuration
Slices Per Tube Rotation / Pitch
Table Increment/Speed:
(mm/rotation) / Rotation
Time
(Seconds) / SFOV
(cm)
2” Above Acetabulum
Through
Lesser Trochanter / Craniocaudal
Spiral/Helical / Suspended
Inspiration / 5
Seconds / ON / 190 / Semi / 120 / Detectors: 64 x 0.6 mm
Slices Per Tube Rotation: 32 / Pitch: 0.8
Table Increment/Speed:
15.36 mm/rotation / 1.0
Seconds / 50
cm
Plane / SAFIRE
Strength / Slice
Thickness / Interval / Kernal / Window
Width/Level / DFOV
(cm)
RECON – AXIAL BONE
Send To PACS / Original Scan
Thin Slice Volume Source Images / OFF / 0.6 mm / 0.6 mm / B70s
Very Sharp / Osteo
1500/450 / FOV Small
To Fit Anatomy
RECON – AXIAL BONE / Axial / OFF / 2.0 mm / 2.0 mm / B70s
Very Sharp / Osteo
1500/450 / FOV Small
To Fit Anatomy
RECON – AXIAL SOFT TISSUE / Axial / OFF / 2.0 mm / 2.0 mm / B40s
Medium / Mediastinum
350/50 / FOV Small
To Fit Anatomy
RECON – CORONAL BONE MPR
Coronals Angled in Plane to Body Part / Coronals Angled in Plane to Body Part
Recon Card 3D Coronal MPR / OFF / 2.0 mm / 2.0 mm / B70s
Very Sharp / Osteo
1500/450 / FOV Small
To Fit Anatomy
RECON – STRAIGHT SAGITTAL BONE MPR
Straight Sagittals Angled in Plane to Body Part / Straight Sagittals Angled in Plane to Body Part
Recon Card 3D Sagittal MPR / OFF / 2.0 mm / 2.0 mm / B70s
Very Sharp / Osteo
1500/450 / FOV Small
To Fit Anatomy
RECON – OBLIQUE SAGITTAL BONE MPR
Oblique Sagittals Angled Parallel to Femoral Neck / Oblique Sagittals Angled Parallel to Femoral Neck
Recon Card 3D Sagittal MPR / OFF / 2.0 mm / 2.0 mm / B70s
Very Sharp / Osteo
1500/450 / FOV Small
To Fit Anatomy
RECON – 3D ONLY – AXIAL SOFT TISSUE
Send To Vital WorkStation for 3D / Axials For 3D Only
Thin Slice Volume Source Images With Overlap / OFF / 0.6 mm / 0.3 mm / B30s
Medium Smooth / Mediastinum
350/50 / FOV Small
To Fit Anatomy
*The operator must check the CTDIvol before and after the scan to ensure it is within the allowed dose range. Scans performed outside of the allowed range must be
documented and reviewed by the designated radiologist and/or physicist.
Allowed CTDIvol Dose Ranges: 3 mGy – 50 mGy
XR29 Dose Notification Value (CTDIvol): 50 mGy
CHARGES: Bill for 3D in Charges section when ending exam: “3D POST PROCESSING CT”. (Obtain Order for 3D)
NETWORK: Exam to PACS. For 3D Only: Send Recon 0.6 x 0.3mm to Vital Workstation for 3D and call Spokane.
12/2017