Advanced 3D printed model of middle cerebral artery aneurysms for neurosurgery simulation

3D Printing in Medicine
Ruth G NagassaJeffrey V Rosenfeld

Abstract

Neurosurgical residents are finding it more difficult to obtain experience as the primary operator in aneurysm surgery. The present study aimed to replicate patient-derived cranial anatomy, pathology and human tissue properties relevant to cerebral aneurysm intervention through 3D printing and 3D print-driven casting techniques. The final simulator was designed to provide accurate simulation of a human head with a middle cerebral artery (MCA) aneurysm. This study utilized living human and cadaver-derived medical imaging data including CT angiography and MRI scans. Computer-aided design (CAD) models and pre-existing computational 3D models were also incorporated in the development of the simulator. The design was based on including anatomical components vital to the surgery of MCA aneurysms while focusing on reproducibility, adaptability and functionality of the simulator. Various methods of 3D printing were utilized for the direct development of anatomical replicas and moulds for casting components that optimized the bio-mimicry and mechanical properties of human tissues. Synthetic materials including various types of silicone and ballistics gelatin were cast in these moulds. A novel technique utilizing water-soluble wax and si...Continue Reading

References

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Citations

Dec 5, 2020·World Neurosurgery·Francisco MeryIsabelle Germano
Jul 10, 2021·Advanced Science·Zhongboyu JinYong He
Nov 13, 2020·Anesthesia and Analgesia·Andrew D WeatherallJustin W Adams

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Methods Mentioned

BETA
dissection

Software Mentioned

Fill
Invert Planes
Geomagic Control Analysis
Rhinoceros One
Mimics
Analysis Measure Distance
Magic Wand
Fill All Flat
modal
3D Slicer

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