24
†
This command may be executed through voice control. Refer to the
B
-
Scan and UBM Voice Controls
section.
PERFORMING UBM SCANS
WARNING:
Contact between the moving transducer element and the eye may result in
injury. When performing a UBM procedure, the user must visually gauge the distance of the
transducer to the cornea and ensure that a safe distance between the two is maintained at
all times.
WARNING:
The DGH1500 UBM probe must be used with a ClearScan® probe cover in
order to reduce the risk of patient to patient infection, corneal injury (due to accidental
contact with the oscillating transducer) and potential adverse biological responses.
WARNING:
Before each procedure, the ultrasound probe and removable transducer must
be cleaned and disinfected. ClearScan® covers cannot be cleaned or reused. Refer to
the
Cleaning and Disinfection
section.
NOTE:
The Pulse Power slider adjusts the amount of energy used to pulse the transducer.
Exams are typically performed at the highest Pulse Power unless the image is
saturated and better definition between tissue structures is desired.
NOTE:
The
[SCAN]
and
[RECORD]
buttons can be configured to operate together or
independently. Refer to the
B
-
Scan Page Preferences
section for more information.
1.
Create a new patient or select an existing patient on the Patient Screen.
2.
Select the
“
B
-
Scan/UBM
”
screen tab. If necessary, click the
[CHANGE EYE]
†
button to
change the eye being scanned (OD or OS).
3.
Select the desired probe, frequency and depth from the drop down boxes. Select the name
of the Operator performing the measurement. If desired, use the Position Map to indicate
the area of the eye being examined.
NOTE:
If the operator is not listed in the
“
Operator
”
drop
-
down box, add the new operator
by selecting
Preferences > Operator
and clicking the [
NEW]
button.
4.
Seat or recline the patient in a comfortable position. Minimize head movement during the
exam. Position the computer display so that it is easily visible during the examination.
5.
Insert the probe into the ClearScan®. Refer to
Page 20
for instructions on
Using Clearscan®
Covers To Perform UBM or Anterior Segment Examinations.
6.
To Start scanning
†:
-
Click the [
START SCAN]
button; or
-
Press the
Space Bar
(keyboard); or
-
Press the
Foot Pedal
(Single Pedal accessory); or
-
Press the
Left Foot Pedal
(Double Pedal accessory).
7.
Direct the patient to look in the desired direction. It may be necessary to hold back the
patient
’
s eyelid or brow to properly expose the eye for scanning. Gently apply the
ClearScan® bag to the cornea.
