Adult Shoulder – 02/07/2018

CTDI: ~25 mGy per acquisition

Setup:

·  Place in true anatomical position, humerus supported to lie parallel to the table and palm supinated

·  Scan to be obtained during breath-hold and opposite shoulder raised above the head

DFOV: 18 cm for a routine shoulder and a 14 cm DFOV should be used for an arthrogram

Scan Parameters:

Shoulder with and or without Contrast:

Scan from above the above the clavicle through the area of interest

Shoulder Arthrogram:

Scan range to include affected shoulder joint

**Pre-Imaging needed if patient has metal**

PACS Series:

  1. Topogram
  2. Bone Shoulder
  3. ST Shoulder
  4. Bone Coronal
  5. Bone Sagittal
  6. Soft Tissue Sagittal
  7. Dose Report/Protocol Page

Align Axial into true Sagittal and coronal plane Align Coronal into true axial and Sagittal planes Align Coronal into true axial and Sagittal planes

Shoulder
Scanner / Phillips 6 / Emotion 16 / Sensation 16 / Definition 20 / Sensation 64 / GE 4 / GE 16 / GE 64
Scan Type / Spiral / Spiral / Spiral / Spiral / Spiral / Spiral / Spiral / Spiral
Rotation Time (sec) / 0.75 / 0.5 / 0.5 / 0.5 / 0.5 / 0.8 / 0.8 / 0.5
Detector Configuration / 6 x 1.5 / 16 x 0.6 / 16 X 0.75 / 20 x 0.6 / 64 x 0.6 / 4 x 1.25 / 16 x 0.625 / 64 x 0.625
Pitch / 0.75 / 0.75 / 0.75 / 0.9 / 0.75 / 1.5:1 / .937:1 / 0.969
Speed(mm/rot) / 15 / 9.37 / 19.37
Scan FOV / Large / Large / Large / Large / Large / Large / Large / Large
Auto mA range / n/a / n/a / n/a / n/a / 100-300 / 100-300 / 100-400
Noise Index / n/a / n/a / n/a / n/a / n/a / 20 / 20 / 20
mAs / 250
eff.mAs (care dose) / 150-250 / 150-250 / 150-250 / 150-250
kVp / 120 / 110 / 120 / 120 / 120 / 120 / 120 / 120
Manual mA
Reconstruction Parameters
Recon 1 Soft Tissue
Algorithm/ Kernel / Bone / B70 / B70 / B70 / B70 / Bone / Bone / Bone
Slice thickness (mm) / 2 / 2 / 2 / 2 / 2 / 2.5 / 2.5 / 2.5
Slice Increment (mm) / 2 / 2 / 2 / 2 / 2 / 2.5 / 2.5 / 2.5
Recon 2 for ST
Algorithm/ Kernel / C / B41 / B41 / B41 / B41 / Standard / Standard / Standard
Slice thickness (mm) / 2 / 2 / 2 / 2 / 2 / 2.5 / 2.5 / 2.5
Slice Increment (mm) / 2 / 2 / 2 / 2 / 2 / 2.5 / 2.5 / 2.5
Recon 3 for MPR’s
Algorithm/ Kernel / Bone / B70 / B70 / B70 / B70 / Bone / Bone / Bone
Slice thickness (mm) / 2 / 1 / 1 / 0.6 / 0.6 / 2.5 / 1.25 / 0.625
Slice Increment (mm) / 1 / 0.5 / 0.5 / 0.6 / 0.6 / 1.25 / .625 / 0.625

V1.4