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Fig. 4 | Perioperative Medicine

Fig. 4

From: Hyperspectral imaging for perioperative monitoring of microcirculatory tissue oxygenation and tissue water content in pancreatic surgery — an observational clinical pilot study

Fig. 4

The perioperative course of HSI parameters of the palm in patients undergoing pancreatic surgery with high (> 800 ml, dark red) and low (≤ 800 ml, light red) intraoperative blood loss; Tissue oxygenation (StO2), near-infrared perfusion index (NPI), tissue haemoglobin index (THI) and tissue water index (TWI) values of patients with high and low intraoperative blood loss are presented as dark red and light red squares at the observation timepoints (t1–t10) as median value with interquartile range, respectively. The numerical scale ranges from 0 to 100 (y-axis). StO2 is given in % and NPI, THI and TWI are index values in arbitrary unit. Statistical analysis was performed with the Mann-Whitney U test. *p < 0.05; HSI, hyperspectral imaging

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Perioperative Medicine

ISSN: 2047-0525