Operating instructions

263
Neck
Hints
• Due to its iodine content, the thyroid gland is
hyperdense in relation to the neighboring muscles
both before and after an IV CM injection. For displays
of the parotid or thyroid gland or the floor of the
mouth, the slice thickness should be < 5 mm and the
length of the range should be adapted to match the
anatomic region
• Target the FoV to ensure adequate coverage of the
region of interest in the upper neck & middle neck
levels as well as to include the axilla in the lower
neck level if required.
Contrast medium IV injection
Start delay 45 sec.
Flow rate 3.0 ml/sec.
Total amount 100 ml
NeckRoutine
kV 120
Effective mAs 150
Rotation time 0.75 sec.
Slice collimation 1.5 mm
Slice width 5.0 mm
Feed/Rotation 18.0 mm
Increment 5.0 mm
Kernel B31s
CTDI
Vol
10.5 mGy
Effective dose Male: 1.8 mSv
Female: 1.9 mSv