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Introducing the BladderScan BVI 9600 bladder volume instrument
with AortaScan mode for measurement of abdominal aortic diameter.
The BVI 9600 consists of a
battery-operated color display console,
a handheld ultrasound probe that scans the patient’s bladder or aorta,
and combination battery charger and wireless hub.
The BVI 9600 is designed to scan in 3 patient-specific modes.
The male and female bladder volume measurement modes are discussed in
the bladder volume mode video tutorial.
When the BVI 9600 is in AortaScan mode,
the diameter of the abdominal aorta can be measured using noninvasive ultrasound
to help physicians detect the presence of an abdominal aortic aneurysm.
AortaScan mode also provides the option to manually measure aortic diameter.
Because the presence of bowel gas may contribute to an inaccurate exam,
it is important to have the patient fast for 12 hours prior to an AortaScan exam.
Turn on the unit by pressing the Power On/Off button.
Change the BVI 9600 from bladder volume mode to AortaScan mode
by pressing the button indicated until the AortaScan home screen appears.
Start with the patient in the supine position,
with abdominal muscles relaxed and arms at the patient’s sides.
Place an ample quantity of gel midline on the patient’s abdomen.
Identify 4 scan locations equally spaced along the midline of the abdomen,
between the xiphoid process and the umbilicus.
It is essential to take all measurements along the abdominal midline
to ensure the aorta is captured in the ultrasound cone at each scan location.
Of the 4 aortic diameter measurements taken,
the largest diameter should be used by the physician to determine whether the
patient may have an aneurysm in the abdominal aorta.
Standing at the patient’s right side,
place the probe on the gel in the first position,
and hold it with the probe screen facing vertically.
In AortaScan mode, you must hold the probe with the long axis aligned with
the midline of the abdomen.
Do not hold the probe with the handle pointing to either side of the patient.
Press and release the scan button located on the underside of the probe.
When you hear a beep, the scan is complete, and the results screen is displayed.
The results screen shows the aortic diameter in centimeters, along with the
aiming display and the results display.
The aiming display shows the location of the aorta relative to the ultrasound probe,
as viewed by the probe looking into the body.
The abdominal aorta is shown in red if the measured diameter is larger than 3 centimeters,
and bowel gas is represented by white lines.
The green dot on the left side is the reference mark correlating the aiming display
with the results display on the right side of the screen.
The results display is a cross-section of the abdomen below the probe.
The abdominal aorta is shown as a dark circular shadow with a red outline.
The white dot on the image is the reference mark correlating the results display
with the aiming display.
When aiming, position the probe so that the red aorta image on the aiming display
does not intersect with bowel gas, as shown here.
AortaScan mode can detect an aorta with a diameter between 3 centimeters and 12.4 centimeters.
For aortic diameters less than 3 centimeters, the diameter is displayed as shown.
Note that no image of the aorta appears on the aiming display.
The round shadow at 6 centimeters depth in the results display
is the patient’s abdominal aorta.
Note that an aorta with a diameter less than 3 centimeters will show
no red outline in the results display.
If the scan is partially obstructed by bowel gas, a green arrow in the console
and a solid green arrow on the probe
indicate the aorta can be detected, but the presence of bowel gas prevents
an accurate measurement.
Moving the probe .5-1 inch (1-2 centimeters)
in the direction of the arrow has a high probability of providing a successful scan.
In this case, the probe should be repositioned and the patient re-scanned.
It is important to ensure that the probe stays roughly on the midline of the abdomen.
Also, gently work the probe into the tissues of the abdomen with a side-to-side
rocking motion to try and displace any bowel gas shrouding the aorta.
If the scan is substantially obstructed by bowel gas,
a red arrow will appear on the console, and a flashing green arrow will appear on the probe.
No diameter measurement can be calculated if there is substantial bowel gas obstruction.
Note the aiming display on the left is substantially covered by bowel gas,
and the results display on the right shows no aorta.
Moving the probe .5-1 inch (1-2 centimeters) in the direction of the arrow
has a low probability of providing a successful scan, but it should be attempted.
Remember to ensure that the probe stays roughly on the midline of the abdomen.
With either partial or substantial bowel gas obstruction,
if the repositioning is not successful and bowel gas still obstructs the measurement,
the exam should be postponed and rescheduled.
Remind the patient to fast for 12 hours prior to the exam.
If the patient has an extra-thick abdomen
and the distance from the probe to the aorta is greater than 18 centimeters,
the BVI 9600 will not detect the aorta.
In these cases, other imaging methods must be used.
When you have verified an accurate scan with no obstruction by bowel gas,
you may choose from the following options.
Record a voice annotation to save your scan.
If you do not voice-annotate the scan,
you must write down the diameter calculated for each scan.
Print the current scan using the onboard printer.
Please note that printing does not save the scan.
Return to the home screen and perform another scan.
If desired, you may make a manual measurement of aortic diameter
using manual measurement mode.
For further information on manual measurement mode,
please consult the AortaScan Quick Reference Card,
the BVI 9600 Quick Reference Guide,
or the BVI 9600 User’s Manual.
To review saved exams,
select Review of Previous Scans.
On the review screen, use the down arrow to select a scan for review.
Two types of measurements may be displayed.
The upper measurement is the aortic diameter measured automatically by the BVI 9600.
The lower measurement is the aortic diameter measured manually in the manual measurement mode.
A manual diameter will only be displayed if a manual measurement was made.
When you have reviewed a saved scan, you may
print the current scan using the onboard printer,
listen to the voice annotation for that scan,
delete the saved scan,
or return to the home screen and perform another scan.
Once you have completed the first scan, remember that you must scan the aorta
at 3 more locations between the xiphoid process and the umbilicus
to complete the measurement process.
When you have finished all 4 scans,
wipe the ultrasound gel from the probe and turn off the instrument.
For users with ScanPoint imaging software,
log in to ScanPoint to automatically transfer and save your annotated exams to your Windows computer.
The BladderScan BVI 9600 gives you the aortic diameter information you need –
quickly, accurately, noninvasively.
The BladderScan BVI 9600 with AortaScan mode.
New horizons in vascular ultrasound.