Angioscan Electronics AngioScan-01, User Manual, Page: 19 / 119

Quick Start 15
© 2014 AngioScan-Electronics LLC
Sensor signal with
interference
Sensor signal without
interference
The interference to sensor signal is likely to make the results unreliable, so it is highly recommended to
disconnect a laptop/netbook from the mains supply during the test. Please note, that the power
supply should be disconnected from the outlet, not from the laptop/netbook. If it is impossible to
disconnect the laptop from mains supply, you should place its power supply as far away as possible
from the AngioScan device and its wires.
In
AngioScan
settings
,
there is an option "Display warning before test starts if notebook is connected to
the power outlet". The option is set by default and the warning appears before the test starts (the
program automatically recognizes that the operation is being performed on the laptop connected to the
mains supply).
3.2 Performance of PPG Contour Analysis
Requirements for preparing to the test:
The test can be conducted at any time of the day. However, if the purpose of test performance is to
evaluate the effectiveness of the current treatment (for example, hypertension, heart disease, diabetes),
it is better to conduct test in the morning in order to eliminate the influence of circadian daily rhythms.
1. Tobacco smoking, intake of vaso-active drugs, intake of caffeine, alcohol or other stimulants, heavy
physical activity should be stopped one day before the test.
2. The patient should rest in a warm, darkened, quiet room for at least 10 minutes before the test starts.
3. The test should be conducted either in supine or sitting position. The hand should be placed at the
heart level. The test results recorded in sitting or supine positions are different. Especially it concerns
time intervals. This is due to changes in transmural pressure of aorta and arm arteries. During the
dynamic estimation of the contour analysis parameters, the tests should always be performed on one
hand. In this case the right hand is preferred due to the angioarchitectonics features of blood
circulation in brachiocephalic area. The test should be conducted in a warm, darkened, quiet room.
Add a patient to the database , if he has not been not registered yet, or select the registered patient by
double clicking his data.
Activate "Measurements" window by clicking its header or its button at main window toolbar: