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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; This e-mail address is being protected from spambots. You need JavaScript enabled to view it