BLADDERSCAN BVI 9400, Operation & Maintenance Manual, Page: 57 / 84

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Operations & Maintenance Manual: Using the Device
10. When the Results screen appears, assess the accuracy of the scan as follows.
Table 20. Bladder Measurement Accuracy
RESULT INDICATOR(S) EXAMPLE
Successful
If the scan is successful and “on target,” the
probe will show eight arrows on the aiming
display. On the console display, the bladder
will appear in the center of the crosshairs.
Off‑target
If the scan is unsuccessful or “off target,” the
probe will show an arrow (solid or flashing)
indicating the direction to move the probe to
be on target. If the arrow is solid, it means
you are slightly off target and it is strongly
recommended you re‑aim and re‑scan. If the
probe shows a single flashing arrow, you must
re‑aim and re‑scan. In either case, the bladder
will not be centered in the crosshairs.
Large Bladder
A large bladder is indicated when more than one
bladder wall falls outside the ultrasound field
of view. The scan results may show a > symbol
even though the probe indicates a successful
scan. See “successful“ entry in this table. When
this happens, try one of the following:
• Apply less pressure with the probe and
re‑scan.
• Re‑aim and re‑scan to ensure bladder is “on
target.” See “off‑target“ entry in this table.
Pubic bone
interference
You may also see a display indicating that the
pubic bone is inside the ultrasound field of
view. If this occurs, you may want to re‑aim and
re‑scan. Although the bladder may be shown
as centered in the ultrasound field of view and
your measurement may be complete, the pubic
bone may be obscuring part of the bladder.
By re‑aiming and re‑scanning, you can ensure
you have captured the bladder fully inside the
ultrasound field of view.