GE Revolution CT User Manual

2. Choose an SFOV .
○
Click Ped Head to image infants 18 months or less in age. It allows you to enter up to a
32 cm DFOV and is limited to 42 kW. It has a special processing to correct for beam
hardening effects.
○
Click
Ped Body to image to image infants 18 months or less in age. It allows you to enter
up to a 32 cm DFOV and is limited to 42 kW.
○
Click
Small Head to image small heads up to 32 cm. It has a special processing to
correct for beam hardening effects.
○
Click Head to image adult heads up to 32 cm. It has a special processing to correct for
beam hardening effects.
○
Click Small Body to image small bodies, extremities that are centered in the middle of
the gantry, and the QA phantom. It allows you to enter up to a 32 cm DFOV.
○
Click Medium Body to image most medium body work. If you measure the anatomy that
you are scanning and it measures over 30 cm, you need to use Medium Body . It allows
you to enter up to a 36 cm DFOV.
○
Click Large Body to image most adult body work. If you measure the anatomy that you
are scanning and it measures over 30 cm, you need to use Large Body . It allows you to
enter up to a 50 cm DFOV.
○
Click Cardiac Small , Cardiac Medium or Cardiac Large for cardiac studies.
NOTE: Cardiac Medium is limited to 36 cm DFOV.
NOTE: Image reconstruction includes native reconstruction to reduce artifacts from beam
hardening.
4.5.4.3 Set the Display Field of View (DFOV) for the primary recon
Follow these steps to enter a DFOV that covers the anatomy of interest. This allows you to
target a particular piece of anatomy for display and determines how much of the SFOV is
reconstructed into an image. Within the DFOV, an image center must be set with
R/L Center
and A/P Center .
1.
From the
Scan Settings window, click the Anatomy Selection collection.
2.
Click
DFOV .
3.
Enter the value of the patient's measurements.
○
Measure the patient at the widest point and add 2 cm. This will show all the anatomy and
the soft tissue around it.
○
If an R/L value or A/P value is more than half of the DFOV, then the R/L, A/P image
annotation does not display on the images. For example, if the DFOV is 10 cm and the R
value is 56 mm, the image annotation displays
R . Use an R/L value or A/P value that is
less than half of the DFOV in mm to avoid this.
○
The minimum DFOV is 5.0 cm.
○
The maximum DFOV depends on the selected SFOV.
Revolution CT User Manual
Direction 5480385-1EN, Revision 1
284 4 Scan Parameters

GE Revolution CT Specifications

General

Brand	GE
Model	Revolution CT
Category	Medical Equipment
Language	English