Neck
ThinSliceSpi 2
nd
reconstr.
kV 120
Effective mAs 150
Slice collimation 0.75 mm
Slice width 5.0 mm 1.0 mm
Feed/Rotation 12.0 mm
Rotation time 0.75 sec.
Kernel B30s B30s
Increment 5.0 mm 0.7 mm
Image order cr-ca
CTDI
w
12.6 mGy
Effective dose Male: 1.7 mSv
Female: 1.9 mSv
93
This protocol can also be used in case of tumor suspi-
cious of the hypopharynx and larynx. It is recommended
to acquire the images in E-phonation, and reconstruct
the images with 1 mm slice width and increment of
0.7 mm for performing MPRs. This would help differ-
entiate tumor lesions from normal pharyngeal mucosa.
MPRthick: ThinSliceSpi sagittal
Image thickness 3
Distance between images 3
Number of images 20
The 2
nd
reconstruction can be loaded in the 3D Card,
MPR. Select the Range function and a predefined MPR
range, linked to the series, will pop up.
Please notice, if you are not satisfied with the Range
preset adapt the parameters to your needs and link them
to the series.
Contrast medium IV injection
Start delay 45 sec.
Flow rate 3 ml/sec.
Total amount 100 ml