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Holmberg, O. ; Lenz, T.* ; Koch, V. ; Alyagoob, A.* ; Utsch, L.* ; Rank, A.* ; Sabic, E.* ; Seguchi, M.* ; Xhepa, E.* ; Kufner, S.* ; Cassese, S.* ; Kastrati, A.* ; Marr, C. ; Joner, M.* ; Nicol, P.*

Histopathology-based deep-learning predicts atherosclerotic lesions in intravascular imaging.

Front. Cardiovasc. Med. 8:779807 (2021)
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Open Access Gold
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Background: Optical coherence tomography is a powerful modality to assess atherosclerotic lesions, but detecting lesions in high-resolution OCT is challenging and requires expert knowledge. Deep-learning algorithms can be used to automatically identify atherosclerotic lesions, facilitating identification of patients at risk. We trained a deep-learning algorithm (DeepAD) with co-registered, annotated histopathology to predict atherosclerotic lesions in optical coherence tomography (OCT). Methods: Two datasets were used for training DeepAD: (i) a histopathology data set from 7 autopsy cases with 62 OCT frames and co-registered histopathology for high quality manual annotation and (ii) a clinical data set from 51 patients with 222 OCT frames in which manual annotations were based on clinical expertise only. A U-net based deep convolutional neural network (CNN) ensemble was employed as an atherosclerotic lesion prediction algorithm. Results were analyzed using intersection over union (IOU) for segmentation. Results: DeepAD showed good performance regarding the prediction of atherosclerotic lesions, with a median IOU of 0.68 ± 0.18 for segmentation of atherosclerotic lesions. Detection of calcified lesions yielded an IOU = 0.34. When training the algorithm without histopathology-based annotations, a performance drop of >0.25 IOU was observed. The practical application of DeepAD was evaluated retrospectively in a clinical cohort (n = 11 cases), showing high sensitivity as well as specificity and similar performance when compared to manual expert analysis. Conclusion: Automated detection of atherosclerotic lesions in OCT is improved using a histopathology-based deep-learning algorithm, allowing accurate detection in the clinical setting. An automated decision-support tool based on DeepAD could help in risk prediction and guide interventional treatment decisions.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Artificial Intelligence ; Atherosclerosis ; Deep Learning ; Histopathology ; Intravascular Imaging ; Optical Coherence Tomography; Optical Coherence Tomography; Plaque Characterization; Coronary; Quantification; Disease
Language english
Publication Year 2021
HGF-reported in Year 2021
ISSN (print) / ISBN 2297-055X
e-ISSN 2297-055X
Journal Frontiers in Cardiovascular Medicine
Quellenangaben Volume: 8, Issue: , Pages: , Article Number: 779807 Supplement: ,
Publisher Frontiers
Publishing Place Lausanne
Reviewing status Peer reviewed
Institute(s) Institute of Computational Biology (ICB)
Institute of AI for Health (AIH)
POF-Topic(s) 30205 - Bioengineering and Digital Health
Research field(s) Enabling and Novel Technologies
PSP Element(s) G-503800-001
G-540007-001
Grants European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme
German Cardiac Society
DOI 10.3389/fcvm.2021.779807
WOS ID WOS:000742896300001
PubMed ID 34970608
Erfassungsdatum 2022-01-28
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