Semiautomatic neck curve reconstruction for intracranial aneurysm rupture risk assessment based on morphological parameters

International Journal of Computer Assisted Radiology and Surgery
Sylvia SaalfeldOliver Beuing

Abstract

Morphological parameters of intracranial aneurysms (IAs) are well established for rupture risk assessment. However, a manual measurement is error-prone, not reproducible and cumbersome. For an automatic extraction of morphological parameters, a 3D neck curve reconstruction approach to delineate the aneurysm from the parent vessel is required. We present a 3D semiautomatic aneurysm neck curve reconstruction for the automatic extraction of morphological parameters which was developed and evaluated with an experienced neuroradiologist. We calculate common parameters from the literature and include two novel angle-based parameters: the characteristic dome point angle and the angle difference of base points. We applied our method to 100 IAs acquired with rotational angiography in clinical routine. For validation, we compared our approach to manual segmentations yielding highly significant correlations. We analyzed 95 of these datasets regarding rupture state. Statistically significant differences were found in ruptured and unruptured groups for maximum diameter, maximum height, aspect ratio and the characteristic dome point angle. These parameters were also found to statistically significantly correlate with each other. The new 3D n...Continue Reading

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Jul 25, 2017·International Journal of Computer Assisted Radiology and Surgery·Philipp Berg, Oliver Beuing

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Citations

Sep 8, 2018·Cardiovascular Engineering and Technology·Philipp BergOliver Beuing
Jun 10, 2020·International Journal of Computer Assisted Radiology and Surgery·Nan LvQinghai Huang
Jul 6, 2020·International Journal of Computer Assisted Radiology and Surgery·Lena SpitzSylvia Saalfeld
Jun 9, 2021·Cardiovascular Engineering and Technology·Philipp BergSylvia Saalfeld
Aug 19, 2021·International Journal of Computer Assisted Radiology and Surgery·Sarah MittenentzweiSylvia Saalfeld

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