Related Experiment Video
Updated: Feb 8, 2026

Three-Dimensional Shape Modeling and Analysis of Brain Structures
Published on: November 14, 2019
Three-dimensional shaping technique for coil placement using the steam-shaped microcatheter for ruptured blood
Abstract:
Treatment of blood blister-like aneurysm (BBA) is a challenge due to its unfavourable morphology, small size and the friable neck of BBA. In the management of ruptured BBA, coil placement can be achieved by stent-assisted coil embolisation. We propose to incorporate a new technique using a steam-shaped microcatheter to improve safety. A 59-year-old woman was transferred to our hospital and diagnosed with subarachnoid haemorrhage (SAH) due to a ruptured BBA of the left internal carotid artery (ICA) at the C2 portion. For coil embolisation, we selected the aneurysm sac using a three-dimensional shaping technique and the jailing method. Post-embolisation angiography revealed complete occlusion of the aneurysmal sac. For safe treatment and stability of BBA, the shape of the catheter tip and the distal portion of the microcatheter are two important factors to consider. The proposed technique could help resolve the problem of catheter shaping in the treatment of BBA.
Related Concept Videos
VSEPR Theory and the Basic Shapes
Molecular Shape and Polarity
Molecular Shapes
Two regions of electron density in a diatomic...
First Derivatives and the Shape of a Graph
Second Derivatives and the Shape of a Graph
Shape and Texture of Coarse Aggregate

