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中华介入放射学电子杂志 ›› 2022, Vol. 10 ›› Issue (04) : 365 -370. doi: 10.3877/cma.j.issn.2095-5782.2022.04.004

血管介入

CT影像融合引导经颈静脉肝内门体分流术中门静脉穿刺
张永裕1, 贺嘉男1, 王大帅1, 赵逆1, 黄伟乐1, 郭辉1,()   
  1. 1. 519000 广东珠海,中山大学附属第五医院介入医学中心介入血管外科
  • 收稿日期:2022-10-10 出版日期:2022-11-25
  • 通信作者: 郭辉
  • 基金资助:
    珠海市社会发展领域科技计划医疗卫生项目(102240102045)

CT Image fusion-guided portal vein puncture during transjugular intrahepatic portosystemic shunt

Yongyu Zhang1, Jianan He1, Dashuai Wang1, Ni Zhao1, Weile Huang1, Hui Guo1,()   

  1. 1. Department of Interventional Vascular Surgery, Interventional Medical Centre, the Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Zhuhai 519000, China
  • Received:2022-10-10 Published:2022-11-25
  • Corresponding author: Hui Guo
引用本文:

张永裕, 贺嘉男, 王大帅, 赵逆, 黄伟乐, 郭辉. CT影像融合引导经颈静脉肝内门体分流术中门静脉穿刺[J]. 中华介入放射学电子杂志, 2022, 10(04): 365-370.

Yongyu Zhang, Jianan He, Dashuai Wang, Ni Zhao, Weile Huang, Hui Guo. CT Image fusion-guided portal vein puncture during transjugular intrahepatic portosystemic shunt[J]. Chinese Journal of Interventional Radiology(Electronic Edition), 2022, 10(04): 365-370.

目的

评估利用2D-3D配准CT影像融合导航技术引导经颈静脉肝内门体分流(transjugular intrahepatic portosystemic shunt,TIPS)术中门静脉穿刺的可行性、安全性与应用价值。

方法

回顾性收集2016年3月至2022年9月在我院接受TIPS的肝硬化门静脉高压症的48例患者临床资料,男39例、女9例,年龄35~88(55.04 ± 11.65)岁。根据引导方式分常规组及融合组:常规组31例,于DSA透视引导门静脉穿刺;影像融合组17例,以CT影像融合技术引导门静脉穿刺。定量分析影像融合术前CT门静脉造影重建的3D图像与数字减影血管造影门静脉图像的误差,对比两组间门静脉穿刺次数、穿刺时间、对比剂用量、X线曝光时间及剂量面积乘积、累积空气比释动能、手术时间,以及穿刺相关并发症。

结果

两组患者均成功施行TIPS,常规组穿刺相关并发症5例,术后因肝功能衰竭死亡1例,融合组未发生穿刺相关并发症。图像融合纵向误差1~10 mm(2.82 ± 2.43 mm),横向误差1~5 mm (2.06 ± 1.20 mm)。与常规组相比,融合组减少了门静脉穿刺次数、穿刺时间、对比剂用量、X曝光时间及剂量面积乘积、累积空气比释动能,其差异有统计学意义(P < 0.05);融合组穿刺相关并发症、手术时间低于常规组,但其差异无统计学意义。

结论

利用2D-3D配准CT影像融合导航技术引导TIPS术中门静脉穿刺安全、可行,有助于提高穿刺准确性,减少穿刺时间及辐射剂量、对比剂用量,值得临床推广。

Objective

To evaluate the feasibility, safety and utility of 2D-3D registration method of CT image fusion (IF) technology for portal vein puncture during transjugular intrahepatic portosystemic shunt (TIPS) placement.

Methods

The clinical data of 48 patients with cirrhosis and portal hypertension who had undergone TIPS in our hospital from March 2016 to September 2022 were retrospectively collected. There were 39 males and 9 females with a mean age of 55 years (range: 35~88), and they were divided into conventional group (n=31) and fusion group (n=17). In the conventional group, portal vein puncture during TIPS placement was performed with DSA fluoroscopy guidance, and CT image fusion was used to guide the portal vein puncture in the fusion group.Mismatch between three-dimensional pre-procedure computed tomography angiography and digital subtraction angiography (DSA) images of portal vein on image fusion was quantitatively analyzed. Number of the portal vein puncture attempts, puncture time, contrast agent dosage, X-ray exposure time and dose-area product, cumulative air kerma, procedure time and puncture-related complications were compared between the two groups.

Results

TIPS was successfully performed in both groups. There were 5 cases of puncture-related complications in the conventional group and one patient died of liver failure after operation. No puncture-related complications occurred in the fusion group.The mismatch value was 1~10 mm(2.82 ± 2.43 mm) in cranio-caudal axis and 1~5 mm (2.06 ± 1.20 mm) laterally.Number of the portal vein puncture attempts, puncture time, contrast agent dosage, X-ray exposure time and dose-area product and cumulative air kerma of fusion group were shorter or less than those of conventional group (P < 0.05). The puncture-related complications and procedure time of fusion group were less than those of conventional group without statistically significant difference.

Conclusions

The 2D-3D registration method of CT image fusion technology for portal vein puncture during TIPS placement is feasible and safe, which might improve puncture accuracy, reduce puncture time, radiation dose and contrast agent dosage, and is worthy of clinical application.

图1 影像融合流程 显示术前CT门静脉序列的3D重建以及利用骨性标志进行2D-3D图像配准1A:术前CT重建包括T11椎体及肋骨、T12椎体、肝中静脉、门静脉及胃左静脉3D重建,并标记膈顶和肝顶位置(白色箭头);1B:正位配准;1C:侧位配准
图2 影像融合引导TIPS2A:影像融合路径图引导肝静脉插管;2B:融合后的门静脉图像引导门静脉穿刺;2C:直接门静脉造影显示门静脉3D重建图像与直接门静脉造影图像的叠加,与直接门静脉造影相比,门静脉主干纵向的高度不同;2D:融合图像引导冠状静脉插管及胃底食管下段曲张静脉团栓塞;2E:在融合图像引导下完成肝内分流道支架置入;2F:TIPS分流道建立后即刻门静脉造影显示支架位置良好,血流顺畅。
表1 纳入患者基线资料
表2 纳入患者手术相关数据比较[n(%)]
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