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首页> 外文期刊>Surgical Endoscopy >Evaluation of hyperspectral imaging (HSI) for the measurement of ischemic conditioning effects of the gastric conduit during esophagectomy
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Evaluation of hyperspectral imaging (HSI) for the measurement of ischemic conditioning effects of the gastric conduit during esophagectomy

机译：评价高光谱成像（HSI）对食管切除术期间胃管道缺血性调理作用的测量

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Background Hyperspectral imaging (HSI) is a relatively new method used in image-guided and precision surgery, which has shown promising results for characterization of tissues and assessment of physiologic tissue parameters. Previous methods used for analysis of preconditioning concepts in patients and animal models have shown several limitations of application. The aim of this study was to evaluate HSI for the measurement of ischemic conditioning effects during esophagectomy. Methods Intraoperative hyperspectral images of the gastric tube through the mini-thoracotomy were recorded from n = 22 patients, 14 of whom underwent laparoscopic gastrolysis and ischemic conditioning of the stomach with two-step transthoracic esophagectomy and gastric pull-up with intrathoracic anastomosis after 3-7 days. The tip of the gastric tube (later esophagogastric anastomosis) was measured with HSI. Analysis software provides a RGB image and 4 false color images representing physiologic parameters of the recorded tissue area intraoperatively. These parameters contain tissue oxygenation (StO(2)), perfusion-(NIR Perfusion Index), organ hemoglobin (OHI), and tissue water index (TWI). Results Intraoperative HSI of the gastric conduit was possible in all patients and did not prolong the regular operative procedure due to its quick applicability. In particular, the tissue oxygenation of the gastric conduit was significantly higher in patients who underwent ischemic conditioning ((StO(2Precond.)) over bar = 78%; (StO(2Precond.)) over bar = 66%; p = 0.03). Conclusions HSI is suitable for contact-free, non-invasive, and intraoperative evaluation of physiological tissue parameters within gastric conduits. Therefore, HSI is a valuable method for evaluating ischemic conditioning effects and may contribute to reduce anastomotic complications. Additional studies are needed to establish normal values and thresholds of the presented parameters for the gastric conduit anastomotic site.
机译：背景技术高光谱成像（HSI）是一种相对较新的方法，用于图像引导和精密手术，其表明有前途的结果表征组织和对生理组织参数的评估。以前用于分析患者和动物模型的预处理概念的方法已经显示了施加的几个限制。本研究的目的是评估在食管切除术期间测量缺血性调理作用的HSI。方法通过迷你胸廓术患者胃管的术中高光谱图像从n = 22例患者记录，其中14例接受了腹腔镜胃溶解和胃的缺血调理，用两步进行的胃部食道切除术和胃癌3- 7天。用HSI测量胃管的尖端（后来食管胃部吻合术）。分析软件提供了表示记录的组织区域的生理参数的RGB图像和4个假彩色图像。这些参数含有组织氧合（STO（2）），灌注 - （NIR灌注指数），器官血红蛋白（OHI）和组织水指数（TWI）。结果在所有患者中，胃管道的术中HSI都是可能的，并且由于其快速适用性而未延长定期操作程序。特别地，在接受缺血调节的患者中，胃管道的组织氧合显着高（（2秒））上方= 78％;（STO（2施用））上方= 66％; P = 0.03） 。结论HSI适用于无接触，无侵入性和对胃管道内生理组织参数的术中评价。因此，HSI是一种评估缺血性调理效应的有价值的方法，可能有助于减少吻合口的并发症。需要额外的研究来建立胃管道吻合点所呈现的参数的正常值和阈值。

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