Additional key parameters and indicators can be derived from recorded pulse waves and ECG tracks: Amplitude A: The height from the beginning of the steepest rise to the highest point of the pulse curve is the amplitude. Oscillometric Index: The oscillometric index marks the pressure stage where the highest amplitude was measured and is comparable to […]
The PWI™ (Pulse Wave Index) is an indicator that relies on characteristics of the pulse wave shape (pulse amplitude and rise time) rather than on pressure values and its calculation is independent of the blood pressure. Studies suggest that, if taken together with the oscillometric ABI, it is the indicator with the highest sensitivity to determine […]
The TBI (Toe-Brachial-Index) is a common and easy to measure indicator to objectively proof an arterial disease in the lower extremities. As recommended by most guidelines, it is applied complementary to an ABI test, especially if the results are very high (ABI > 1.4, indicating a media sclerosis) or unreliable. TBI tests can be especially […]
The ABI (Ankle-Brachial-Index) is an evaluation criterion of the perfusion in the extremities based on the pressures in the arteries. It is mainly used to determine blood flow disorders related to peripheral arterial occlusive disease (PAOD). Historically, the systolic blood pressures are taken manually on each extremity individually by applying a pressure cuff and a […]