Fig. 4: Correlation of MSOT parameters with clinical assessments. | Communications Medicine

Fig. 4: Correlation of MSOT parameters with clinical assessments.

From: Derivation and validation of a non-invasive optoacoustic imaging biomarker for detection of patients with intermittent claudication

Fig. 4: Correlation of MSOT parameters with clinical assessments.

Correlation matrix of the MSOT parameters deoxygenated hemoglobin (Hb), oxygenated hemoglobin (HbO2), MSOT saturation (mSO2) before (Pre) and after (Post) heel raise exercise with ankle-brachial-index after heel raise exercise (ABI), the absolute walking distance in the Six-Minute Walk Test (6MWT), the score in the Vascular Quality of Life Questionnaire-6 (VASCUQOL-6), the score in the aggregated Trans-Atlantic Inter-Society Consensus Document on Management of Peripheral Arterial Disease classification II (aTASC). Correlation given by Pearson correlation coefficient (R) are indicated as strongly positive (dark blue) and strongly negative (dark red).

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