Automated neck-plane detection on rotational angiography for aneurysm quantification

Automated cutting plane matched 3D reference neck contours within 1 mm in 90.2% of intracranial aneurysms on rotational angiography (median volume error -1.03%), similar to inter-rater agreement (93.8%). Could be a first-pass human-in-the-loop tool.

• In the public AneuRisk dataset (112 aneurysms, 99 meshes), ACP was compared with a single-rater 2D manual cutting plane and a reference of four independent 3D manual cutting planes.
• Single-rater 2D manual cutting planes agreed within 1 mm in 83.9% (median AICD 0.35 mm); ACP median volumetric error was -1.03%, with 74% within 5% error and a heavier negative tail (5th percentile -28.1%).
• The authors conclude ACP could serve as a human-in-the-loop first-pass proposal requiring operator verification, with a minority of complex aneurysms underestimated.

Automated summary

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