Table 2 Protocol Details – Dx CT for Attenuation Correction

• Standard dose po/I⁺ contrast enhanced Dx CT

 - 2 cc/kg IV contrast (Optiray320); 1 cc/kg if <10 kg

 - 2 cc/s injection, 10-20 cc saline flush

 - Oral contrast (1 cc Opti 320/30 cc water, max 300 cc)

  • Adjustment for sedation (60 min delay after last cup)

 - Arms down, elevated off table with blanket

  • (arms up is possible, depending on pt)

• CT scan top - > down (eyes - > thighs, vertex-toes)

  • Thickness: 0.5 mm

  • Pitch: 1.3

 – Tube current modulation/reconstructions: standard Dx CT

 – Dedication lung CT, end-inspiration, as dedicated