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首页> 外文期刊>Surgical Endoscopy >Evaluation of real-time infrared intraoperative cholangiography in a porcine model.
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Evaluation of real-time infrared intraoperative cholangiography in a porcine model.

机译：猪模型中实时红外术中胆道造影的评估。

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BACKGROUND: Intraoperative cholangiograms (IOCs) may increase cost, surgical time, and radiation exposure of staff and patients. The authors introduce the application of passive infrared imaging to intraoperative cholangiography as a feasible alternative to traditional fluoroscopic IOCs. METHODS: A porcine model was used in which the gallbladder, cystic duct, common bile duct (CBD), and duodenum were exposed and an 18-gauge angiocatheter was inserted into the cystic duct. Infrared emission was detected using a digital infrared camera positioned 30 to 60 cm above the abdomen. Infrared images were taken in real time (approximately 1/s) during infusion of room-temperature saline. A thermoplastic polymer stone then was inserted into the CBD. Once the artificial stone was placed, room-temperature saline was again injected. A standard single-shot renograffin IOC was obtained to confirm the obstruction. The experiment was concluded by creation of a lateral 2-mm CBD injury immediately proximal to the duodenum followed by infusion of room-temperature saline. RESULTS: Six pigs were used in this study. Baseline infrared imaging was able to capture a visible temperature decrease, outlining the lumen of the CBD. With injection of room-temperature saline, a decrease in temperature was visualized as a dark area representing flow from the CBD to the duodenum. After placement of the synthetic stone, real-time infrared images displayed slowing of the injected bolus by the obstruction. The obstruction was correlated with fluoroscopic IOCs. Finally, after partial transection of the CBD, the infrared camera visualized saline flowing from the site of injury out into the peritoneal cavity. CONCLUSIONS: The CBD anatomy, obstruction, and injury can be clearly visualized with an infrared camera. Intraoperative infrared imaging is an emerging method already being used in several surgical fields. Ultimately, the integration of infrared and laparoscopic technology will be necessary to make infrared technology important in laparoscopiccholecystectomy.
机译：背景：术中胆管造影（IOC）可能会增加成本，手术时间以及员工和患者的放射线暴露。作者介绍了被动红外成像在术中胆道造影中的应用，作为传统荧光透视IOC的可行替代方案。方法：使用猪模型，将胆囊，胆囊管，总胆管（CBD）和十二指肠暴露，并在胆囊管中插入一个18号血管导管。使用位于腹部上方30至60厘米的数字红外摄像机检测红外发射。在输注室温盐水期间实时（约1 / s）拍摄红外图像。然后将热塑性聚合物石插入CBD。放置人造石后，再次注入室温盐水。获得标准的单次使用的肾上腺素IOC以确认阻塞。通过在十二指肠近侧产生2毫米CBD外侧损伤，然后输注室温生理盐水来结束实验。结果：本研究使用了六头猪。基线红外成像能够捕获可见的温度下降，勾勒出CBD的内腔。注入室温盐水后，温度下降可视为一个暗区，代表从CBD到十二指肠的血流。放置人造石后，实时红外图像显示由于阻塞而使注入的推注速度变慢。梗阻与透视IOC相关。最后，在将CBD部分横切后，红外热像仪可以看到从损伤部位流入腹膜腔的盐水。结论：可以用红外热像仪清晰地观察CBD的解剖结构，梗阻和损伤。术中红外成像是一种已经在多个外科领域中使用的新兴方法。最终，将红外技术与腹腔镜技术相结合对于使红外技术在腹腔镜胆囊切除术中变得重要至关重要。

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