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17 March 2023 Multi-modal imaging system with optically integrated probe for left atrial anatomical mapping
Haiqiu Yang, Michael Douglass, Deepak Saluja, Kenneth Laurita, Andrew Rollins, Christine P. Hendon
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Proceedings Volume PC12355, Diagnostic and Therapeutic Applications of Light in Cardiology 2023; PC1235507 (2023) https://doi.org/10.1117/12.2650336
Event: SPIE BiOS, 2023, San Francisco, California, United States
Abstract
Patients with atrial fibrillation (AF) require detailed mapping of the left atrium (LA) during radiofrequency ablation (RFA) procedures. Identifying the lesion gaps can provide helpful guidance for complete conduction blocks, reducing the probability of recurrence. We implement anatomical mapping using an integrated optical probe with a combined modality of near-infrared spectroscopy (NIRS) and optical coherence tomography (OCT). Both spectral signatures are captured simultaneously, with the sample-sites located by a magnetic tracking sensor. With increased sampling density and speed, we are able to recognize small gaps between lesions LA, and reconstruct atrial substrate and lesion maps with the tissue underneath PBS and blood.
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Haiqiu Yang, Michael Douglass, Deepak Saluja, Kenneth Laurita, Andrew Rollins, and Christine P. Hendon "Multi-modal imaging system with optically integrated probe for left atrial anatomical mapping", Proc. SPIE PC12355, Diagnostic and Therapeutic Applications of Light in Cardiology 2023, PC1235507 (17 March 2023); https://doi.org/10.1117/12.2650336
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KEYWORDS
Imaging systems
Integrated optics
Multimodal imaging
Radiofrequency ablation
System integration
Blood
Near infrared spectroscopy
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