Monday May 21 , 2012
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Protocols - PT

THIS PAGE IS STILL UNDER CONSTRUCTION

Please send protocols (Sequeces, Plane, Thickness, Time) to aafari@gmail.com for inclusion.

Please send protocol questions to aafari@gmail.com

 

PT (CTPT) - Whole Body

  • Give PO Contrast
  • PT whole body
  • CT whole body, non-contrast for attenuation correction.  Only send this phase.  Don't send NAC images to PACS.
  • CT CAP+, 100 cc, One phase at 45 sec, 5mm.  No non-contrast phase.

PT - Whole Body - Bone (NaF)

  • 5 mm sections for CAP
  • 10 mm sections for extremities
  • Create Planar views from the axial PET data.  Frontal, Posterior, Left Lateral, Right Lateral

PT (CTPT) - WHOLE BODY (LIVER LESION, BrCA, GI CA)

  • Give PO Contrast
  • PT whole body
  • CT whole body, non-contrast for attenuation correction.  Only send this phase.  Don't send NAC images to PACS.
  • CT CAP+, 100 cc, One phase at 45 sec, 5mm.  No non-contrast phase.
  • CT Abdomen, 120 sec, 5mm

 

SUV Variability - Quality Control

Possible Etiologies:

  • PET scanner clock must be correct to calculate timing of dosing.
  • Patient weights must be entered correctly.
  • Partially infiltrated dose must be taken into account.
  • Partial dosing may be caused by injecting through a port.
  • Dose should be assayed immediately before injection.  If it takes 5 min to 30 min to find a vein, it can change dose.  FDG T1/2 is 20 min.
  • Cursor should be placed over whole liver and measure the max SUV.  Should be around 3.2.  Soft tissues around 1.1.

 

Index Cases:

  • ODI 41480.  Liver went from 3 to 5 SUV.  Everything more hypermetabolic.

Contact People:

  • Gina Ainza (PetNetSolutions):  626-487-1052; gina.ainza@petnetsolutions.com


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