Siemens SOMATOM

Dose Information
63
Additional Important Information
For ideal dose application it is very important to posi-
tion the patient in the isocenter of the gantry.
Example for an a.p. topogram:
Patient is positioned in the isocenter – optimal dose
and image quality
Patient is positioned too high – increased mAs
Patient is positioned too low – reduced mAs and
increased noise
Detector
X-ray tube
Patient
(centered)
X-ray tube
Detector
Patient
(not centered)
Patient
X-ray tube
Detector
(not centered)