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TensioMed
Arteriograph
The
complex arterial function (stiffness) measurement with Arteriograph is
as simple as a blood pressure measurement on the upper arm.
This world-wide patented, innovative device measures all the relevant
arterial function parameters such as aortic pulse wave velocity
(PWVao), augmentation index (Aix) and central blood pressure values
simultaneously with the peripheral blood pressure. Artreiograph
provides an easy, fast, accurate and user-independent method for
measuring arterial function.
The only device that simultaneously measures the parameters of vascular
age on such a wide scale.
Arterial function is defined by
several parameters measured by Arteriograph
- Aortic Pulse Wave Velocity (PWVao)
tells you information on the possible rigidity of the aorta
(stiffness), when the aortic wall becomes rigid and it causes increased
velocity in the aorta. The higher the PWV the stiffer the aorta.
Vascular stiffness measurement provides an early warning on the
atherosclerotic procedure
- PWVao-SD
(m/s): A parameter informing about the quality of the measurement. The
PWVao is calculated from each pulse recorded and the standard deviation
is featured. Over 1 m/s standard deviation its value appears on the
screen in red colour. This warns the examiner to the disturbed
conditions of the performed measurement (motion, arrhythmia,
respiration, etc.). The results of the measurement having an PWVao-SD
over 1 m/s should be disregarded and the measurement should be repeated
- RT: Return time (ms)
It is the time of the pulse wave travelling from the aortic root to the
bifurcation end back
- Augmentation Index (Aix)
provides information about the tone (vasodilatation) of the small
arteries and arterioles. The lower the Aix, the more dilated the small
arteries and arterioles. Consequently, the lower the cardiac after
load. Endothelial disfunction always goes together with increased
vasomotor tone i.e. increased Aix. It is the difference between the
amplitudes of the late (backward) systolic wave (P2) and the early
(forward) systolic wave (P1) over the pulse pressure (PP) and
multiplied with 100. Aix=(P2-P1)/PP*100
- SBPao:
central systolic blood pressure (mmHg) is physiologically lower that
the peripheral (brachial) blood pressure. Increased central (aortic)
blood pressure causes as increased cardiac after load and a pressure
load on the central vessels (coronary arteries, carotid arteries and
the aorta)
- Sys: Brachial
systolic blood pressure(mmHg)
- Dia: Brachial
diastolic blood pressure(mmHg)
- HR: Heart
Rate(beat/min)
- MAP: Mean Arterial
Pressure(mmHg)
- PP: Brachial Pulse
Pressure(mmHg)
- PPao: Aortic pulse
pressure (mmHg)
- ED:
Ejection Duration of the left ventricle (ms) It is the period of the
mechanical systole, i.e. the time-span between the opening and closing
of the aortic valves.
- DRA:
Diastolic Reflection Area (Dimensionless index). It provides
information about the quality of diastolic filling condition during
diastole of the left coronary artery. The higher the DRA the more
optional the filling condition of the left coronary artery during
diastole and provides information about cardiac fitness
- SAI: Systolic Area
Index (%) It is the systolic part of the area under the entire pulse
curve
- DAI: Diastolic Area
Index (%) It is the diastolic part of the area under the entire pulse
curve
- ABI:
Ankle – Brachial Index (Dimensionless Index) provides
information
about the presence of peripheral artery diseases if its value is lower
then 0.9. It is the ratio of the ankle systolic blood pressure and
brachial systolic blood pressure values
Thanks
to its detailed and complex results TensioMed Arteriograph clearly
interprets all the requisite information measuring arterial functions.
Consequently, by further medical services, it can help to assess such a
serious outcome as atherosclerosis for instance. Therefore it is also
perfectly suitable for population screening, since it is an easy, fast,
reliable and user-independent method.
The measurement takes just two minutes with an upper arm cuff. The
measurement is safe and painless not causing any harm to the patient.
The device provides a measurement report called arteriogram assessing
the general condition of arteries. The assessment tells you whether the
endothel function (stress level of arteries measured by Aix) and the
Pulse Wave Velocity of the aorta (elasticity and stiffness of the aorta
measured by PWV) are acceptable or not.
Several studies have shown that arterial function parameters
–
such as aortic pulse wave velocity (PWVao), augmentation index (Aix)
and central blood pressure – are strong and independent
predictors of cardiovascular mortality. The pulse wave velocity
measurement is even included in the recommendations of the latest
hypertension management guidelines*.
Professional, science and research information:
Dr. Illyés Miklós
E-mail: info@tensiomed.com
Features
- EASY,
as an oscillometric blood pressure measurement
- Fast,
as it takes only 2 minutes (including patient data input)
- USER
INDEPENDENT, as it is fully automatic; the users only have to launch
the measurement.
- EXCELLENT
REPRODUCIBILITY, as it is proved to be superior to the reproducibility
of other available methods
- LOW
VARIANCE, as it is proved to be the lowest among non-invasive arterial
function assessing methods. (Variance is the estimate of measurement
errors for the repeat measurements within one session.)
- OUTSTANDING
COST-BENEFIT RATIO, among clinically accepted devices.
- VALIDATED,
to invasive and non-invasive measurements.
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