Device and methods for "gold standard" registration of clinical 3D and 2D cerebral angiograms

Hennadii Madan; Boštjan Likar; Franjo Pernuš; Žiga Špiclin

doi:10.1117/12.2081908

18 March 2015 Device and methods for "gold standard" registration of clinical 3D and 2D cerebral angiograms

Hennadii Madan, Boštjan Likar, Franjo Pernuš, Žiga Špiclin

Proceedings Volume 9415, Medical Imaging 2015: Image-Guided Procedures, Robotic Interventions, and Modeling; 94151G (2015) https://doi.org/10.1117/12.2081908
Event: SPIE Medical Imaging, 2015, Orlando, Florida, United States

Abstract

Translation of any novel and existing 3D-2D image registration methods into clinical image-guidance systems is limited due to lack of their objective validation on clinical image datasets. The main reason is that, besides the calibration of the 2D imaging system, a reference or ”gold standard” registration is very difficult to obtain on clinical image datasets. In the context of cerebral endovascular image-guided interventions (EIGIs), we present a calibration device in the form of a headband with integrated fiducial markers and, secondly, propose an automated pipeline comprising 3D and 2D image processing, analysis and annotation steps, the result of which is a retrospective calibration of the 2D imaging system and an optimal, i.e., “gold standard” registration of 3D and 2D images. The device and methods were used to create the ”gold standard” on 15 datasets of 3D and 2D cerebral angiograms, whereas each dataset was acquired on a patient undergoing EIGI for either aneurysm coiling or embolization of arteriovenous malformation. The use of the device integrated seamlessly in the clinical workflow of EIGI. While the automated pipeline eliminated all manual input or interactive image processing, analysis or annotation. In this way, the time to obtain the ”gold standard” was reduced from 30 to less than one minute and the “gold standard” of 3D-2D registration on all 15 datasets of cerebral angiograms was obtained with a sub-0.1 mm accuracy.

Citation Download Citation

Hennadii Madan, Boštjan Likar, Franjo Pernuš, and Žiga Špiclin "Device and methods for "gold standard" registration of clinical 3D and 2D cerebral angiograms", Proc. SPIE 9415, Medical Imaging 2015: Image-Guided Procedures, Robotic Interventions, and Modeling, 94151G (18 March 2015); https://doi.org/10.1117/12.2081908

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