Abstract
Intravascular ultrasound (IVUS) is an invasive imaging modality capable of providing cross-sectional images of the interior of a blood vessel in real time and at normal video framerates (10-30 frames/s). Low contrast between the features of interest in the IVUS imagery remains a confounding factor in IVUS analysis; it would be beneficial therefore to have a method capable of detecting certain physical features imaged under IVUS in an automated manner. We present such a method and apply it to the detection of blood. While blood detection algorithms are not new in this field, we deviate from traditional approaches to IVUS signal characterization in our use of 1-class learning. This eliminates certain problems surrounding the need to provide “foreground” and “background” (or, more generally, n-class) samples to a learner. Applied to the blood-detection problem on 40 MHz recordings made in vivo in swine, we are able to achieve ~95% sensitivity with ~90% specificity at a radial resolution of ~600 μm.
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© 2007 Springer-Verlag Berlin Heidelberg
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O’Malley, S.M., Naghavi, M., Kakadiaris, I.A. (2007). One-Class Acoustic Characterization Applied to Blood Detection in IVUS. In: Ayache, N., Ourselin, S., Maeder, A. (eds) Medical Image Computing and Computer-Assisted Intervention – MICCAI 2007. MICCAI 2007. Lecture Notes in Computer Science, vol 4791. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75757-3_25
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DOI: https://doi.org/10.1007/978-3-540-75757-3_25
Publisher Name: Springer, Berlin, Heidelberg
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