Newest papers

Feasibility of a Patient-Specific Digital Twin for Ventriculoperitoneal Shunt Trajectory Planning

Kritsanavis Chongsrid, Vich Yindeedej, Supaporn Konmun, Xulei Yang, Si Yong Yeo · 2026 · arXiv (Cornell University)

DOI: 10.48550/arxiv.2610.20074 · cited by 0 works (OpenAlex) · open-access PDF

Chinese

我们建造了一个数字双胞胎,重建头骨,头皮,耳朵和腹部从预手术CT的最常见的原因是;在基恩点的自由手插入只在十个案例中留下脑脊液的顶部自由,并在安全限制下最长的内心室长度的基恩点周围搜索每一个入口,并返回计划作为两个从耳朵和两个深度的统治者测量。在11个连续的成年人(IDEAL阶段2a)中执行自由手操作,它实现了Hayhurst级1的位置在10的11对22的213历史上(p = 9 x 10-9^),入口中间和角度偏差2.5毫米和5.9度,1.4厘米更多的内心室比Keenheter的点,没有手术中的并发症。

Machine translation (Meta M2M100); the English original follows.

Abstract

Catheter obstruction is the commonest cause of shunt failure; freehand insertion at Keen's point leaves the tip free in cerebrospinal fluid in only one case in ten. We built a digital twin that reconstructs skull, scalp, ear and ventricles from preoperative CT by deterministic geometry, searches every entry around Keen's point for the perpendicular trajectory with the longest intraventricular length under safety constraints, and returns the plan as two ruler measurements from the ear and two depths. Executed freehand in 11 consecutive adults (IDEAL Stage 2a), it achieved Hayhurst Grade 1 placement in 10 of 11 against 22 of 213 historically (p = 9 x 10^-9), median entry and angular deviations 2.5 mm and 5.9 degrees, 1.4 cm more intraventricular catheter than Keen's point, and no intraoperative complication. The technique was unchanged; the gain came from choosing entry and depth per patient. Whether it lowers revision is the next stage's hypothesis.

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Topics: Medicine, Shunt (medical), Surgery, Catheter, Hydrocephalus, Cerebrospinal fluid

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