AIRO Application Guide Protocols & Principles
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<strong>Application</strong> <strong>Guide</strong> <strong>Protocols</strong> and <strong>Principles</strong><br />
MI-42-0005 Rev 8<br />
3.1.1 HeadHelical<br />
Indications:<br />
Helical mode for routine head studies, e.g. stroke, brain tumors, cranial trauma, cerebral atrophy, hydrocephalus, and<br />
inflammation, etc. A range for the base and for the cerebrum of 200 mm will be covered in 10 sec.<br />
Adult<br />
HeadHelical<br />
Original Alternate Newborn Baby Toddler<br />
Pre-<br />
School<br />
Pediatric<br />
Schoolaged<br />
Preadolescent<br />
Teenager<br />
kV 120 120 120 120 120 120 120 120 120 120<br />
mA 240 220 84 103 136 174 220 220 220 220<br />
Effective mAs 325.7 298.5 113.4 140.3 185.1 235.8 298.5 298.5 298.5 298.5<br />
Rotation Time 1.92 s 1.92 s 1.92 s 1.92 s 1.92 s 1.92 s 1.92 s 1.92 s 1.92 s 1.92 s<br />
Slice<br />
Collimation<br />
Late<br />
Adolescent<br />
1.06 mm 1.06 mm 1.06 mm 1.06 mm 1.06 mm 1.06 mm 1.06 mm 1.06 mm 1.06 mm 1.06 mm<br />
Slice Width 1.0 mm 1.0 mm 1.0 mm 1.0 mm 1.0 mm 1.0 mm 1.0 mm 1.0 mm 1.0 mm 1.0 mm<br />
Feed/Rotation 48 mm 48 mm 48 mm 48 mm 48 mm 48 mm 48 mm 48 mm 48 mm 48 mm<br />
Pitch Factor 1.415 1.415 1.415 1.415 1.415 1.415 1.415 1.415 1.415 1.415<br />
Kernel Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard<br />
CTDIvol 64.7 mGy 59.3 mGy 22.6 mGy 27.9 mGy 36.8 mGy 46.9 mGy 59.3 mGy 59.3 mGy 59.3 mGy 59.3 mGy<br />
Weight<br />
Adapted<br />
No No No No No No No No No No<br />
Weight 70 kg 70 kg 3 kg 8 kg 13 kg 17 kg 27 kg 39 kg 59 kg 70 kg<br />
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