Abstract: Objective:To explore the application value of threedimensional (3D) visualization combined with portal vein (PV) arterialization technologies in pancreaticoduodenectomy.
Methods:The retrospective descriptive study was adopted. The clinical data of 1 patient with duodenal cancer who was admitted to the Chenggong Hospital of Xiamen University in August 2015 were collected. The preoperative plain scan images in the upper abdomen and enhanced scan images in the arterial and PV phases using 320slice spiral CT were converted to the 3D images by 3D visualization technology. The 3D data were used for detecting tumor invading pancreatic head and organizational structure surrounding hepatic hilus, and making a preliminary surgical plan. Open exploration found that tumor involved pancreatic head and didn′t invade superior mesenteric artery and vein, and then pancreaticoduodenectomy was applied to the patient during operation. Intraoperative proper hepatic arteryPV endtoside anastomosis was used for increasing R0 resection rate. Operation time, volume of intraoperative blood loss, result of postoperative pathological examination, liver function and complication and vascular patency at postoperative week 1 and vascular patency at postoperative month 1 were observed. The patient underwent color Doppler ultrasound and digital subtraction angiography (DSA) at postoperative month 1 in order to detect blood vessels, and was followed up by outpatient examination for observing tumor till November 2015.
Results:There was a clear and solid 3D reconstruction model between anatomical position of tumor and blood vessels, and preoperative assessment was consistent with intraoperative finding. Operation time and volume of intraoperative blood loss were 6.5 hours and about 1 500 mL. The patient was confirmed as intestinal diffuse large Bcell lymphoma by postoperative pathological examination. The patient had normal liver function at postoperative week 1 and discharged from hospital at postoperative week 2, without abdominal secondary hemorrhage, infection, pancreatic fistula, intestinal fistula and other severe complications. PV blood flowing was normal by color Doppler ultrasonography at postoperative week 1 and month 1. DSA examination showed that there was no proper hepatic artery images and visible compensatory liver artery at postoperative month 1. During followup, no tumor recurrence was detected.
Conclusion:3D reconstruction model can provide an accurate preoperative assessment, and PV arterialization technology for unreserved hepatic artery has a certain degree of clinical value in pancreaticoduodenectomy.