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. 2023 Dec 2;35:100579. doi: 10.1016/j.pacs.2023.100579

Fig. 3.

Fig. 3

Single wavelength optoacoustic imaging at 800 nm compared to multispectral unmixed parameters. A Distribution of the acquired MSOT readouts for SWL 800 nm according to clinical severity of PAD (HV; no clinical PAD symptoms, normal ankle-brachial-index (ABI) and palpable foot pulses; IC; combined Fontaine IIa: claudication at a distance > 200 m and IIb: claudication at a distance < 200 m; CLTI; combined Fontaine III: rest pain, mostly in the feet and IV: necrosis and/or gangrene of the limb) compared to deoxygenated hemoglobin (HbR), oxygenated hemoglobin (HbO2), and multispectral unmixing derived oxygenation (mSO2). B Distribution of the acquired MSOT readouts for SWL 800 nm according to the angiographic severity (aTASC; aTASC1: included as healthy volunteer (HV) with no arteriosclerotic findings in angiography, aTASC 2: assumption of collateralization due to mild findings in aortoiliac (AI) or femoropopliteal (FP) vessel section, aTASC 3: assumption of poor collateralization due to severe AI findings) compared to deoxygenated hemoglobin (HbR), oxygenated hemoglobin (HbO2), and multispectral unmixing derived oxygenation (mSO2). Dots indicate individual datapoints from patients, error bars indicate mean±SD.