Product Manual

Page 15 of 21
Draft 1.1
Now press Next and place the Doppler probe on the posterior tibial (PT) artery behind
the inside ankle bone. Obtain the pressure by again pressing Inflate, then Pressure
when the sound returns, and then Dump.
To obtain a PVR waveform at the ankle cuff, press the button with the waveform
image on it on the remote. The cuff will inflate to the proper pressure and hold that
while the waveform is obtained. The patient should remain still during the
measurement; the waveform will appear about ten seconds after the cuff is inflated.
Press Dump after the waveform is obtained.
Press Next and the system will move to the calf location. Leave the Doppler probe on
the posterior tibial (PT) artery. Obtain the pressure as before and then take a PVR
waveform by pushing the waveform button. Press Dump when finished with the
waveform. Press Next and the system will move to the Above knee location where you
can take the pressures and waveforms as before.
Repeat the sequence for the other leg – press Next and the system will move to the left
brachial location.
When finished, save the report.
The TBI Examination
Contraindications: Do not perform the TBI exam on someone suspected of having acute
deep venous thrombosis, and do not take an arm pressure in an arm with a shunt or
dialysis graft.
Background: The TBI exam is typically performed after an ABI has been done, especially
if the larger ankle arteries appear to be incompressible (pressure over 200mmHg) or
anytime more information is needed about small vessel disease. The TBI is done using
the PPG probe. The patient is supine and rested in a warm room.
Setting up
On the computer desktop, select the simpleABI icon. When the screen opens click on
the File tab, then New, and then select TBI report. The TBI report form will come up.
Wrap cuffs (12cm) on the arms using the green connector. Wrap small digit cuffs on the
great toe as far down towards the base as possible using the hoses with the yellow
connectors. Attach the PPG probe and sensor to the DigiDop, replacing the Doppler
probe.