Real-Time Guiding Catheter and Guidewire Detection for Congenital Cardiovascular Interventions View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

2017

AUTHORS

YingLiang Ma , Mazen Alhrishy , Maria Panayiotou , Srinivas Ananth Narayan , Ansab Fazili , Peter Mountney , Kawal S. Rhode

ABSTRACT

Guiding catheters and guidewires are used extensively in pediatric cardiac catheterization procedures for congenital heart diseases (CHD). Detecting their positions in fluoroscopic X-ray images is important for several clinical applications, such as visibility enhancement for low dose X-ray images, and co-registration between 2D and 3D imaging modalities. As guiding catheters are made from thin plastic tubes, they can be deformed by cardiac and breathing motions. Therefore, detection is the essential step before automatic tracking of guiding catheters in live X-ray fluoroscopic images. However, there are several wire-like artifacts existing in X-ray images, which makes developing a real-time robust detection method very challenging. To solve those challenges in real-time, a localized machine learning algorithm is built to distinguish between guiding catheters and artifacts. As the machine learning algorithm is only applied to potential wire-like objects, which are obtained from vessel enhancement filters, the detection method is fast enough to be used in real-time applications. The other challenge is the low contrast between guiding catheters and background, as the majority of X-ray images are low dose. Therefore, the guiding catheter might be detected as a discontinuous curve object, such as a few disconnected line blocks from the vessel enhancement filter. A minimum energy method is developed to trace the whole wire object. Finally, the proposed methods are tested on 1102 images which are from 8 image sequences acquired from 3 clinical cases. Results show an accuracy of 0.87 ± 0.53 mm which is measured as the error distances between the detected object and the manually annotated object. The success rate of detection is 83.4%. More... »

PAGES

172-182

References to SciGraph publications

Book

TITLE

Functional Imaging and Modelling of the Heart

ISBN

978-3-319-59447-7
978-3-319-59448-4

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-3-319-59448-4_17

DOI

http://dx.doi.org/10.1007/978-3-319-59448-4_17

DIMENSIONS

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