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. 2022 Feb 25;14(5):1188. doi: 10.3390/cancers14051188

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Graphic illustration of the changes in tissue oxygen saturation and near-infrared perfusion at the different measurement points over time (a) StO₂, (b) NIR and along the longitudinal axis of the colon 3 min after devascularization, (c) StO₂, (d) NIR. All markers had a diameter of 5 mm and illustrate the value of tissue perfusion. The demarcation line is located between C1 and D1; D5 is the most distal marker and C5 the most central one. a and b illustrate the biggest significant drops distal to the border zone 1 min after devascularization. Illustrations c and d demonstrate the course between the markers and time.