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Bagcilar, Omer; Alis, Deniz; Alis, Ceren; Seker, Mustafa Ege; Yergin, Mert; Ustundag, Ahmet; Hikmet, Emil; Tezcan, Alperen; Polat, Gokhan; Akkus, Ahmet Tugrul; Alper, Fatih; Velioglu, Murat; Yildiz, Omer; Selcuk, Hakan Hatem; Oksuz, Ilkay; Kizilkilic, Osman; Karaarslan, Ercan
{ "DOI": "10.1038/s41598-023-33723-w", "abstract": "<p>The use of deep learning (DL) techniques for automated diagnosis of large vessel occlusion (LVO) and collateral scoring on computed tomography angiography (CTA) is gaining attention. In this study, a state-of-the-art self-configuring object detection network called nnDetection was used to detect LVO and assess collateralization on CTA scans using a multi-task 3D object detection approach. The model was trained on single-phase CTA scans of 2425 patients at five centers, and its performance was evaluated on an external test set of 345 patients from another center. Ground-truth labels for the presence of LVO and collateral scores were provided by three radiologists. The nnDetection model achieved a diagnostic accuracy of 98.26% (95% CI 96.25-99.36%) in identifying LVO, correctly classifying 339 out of 345 CTA scans in the external test set. The DL-based collateral scores had a kappa of 0.80, indicating good agreement with the consensus of the radiologists. These results demonstrate that the self-configuring 3D nnDetection model can accurately detect LVO on single-phase CTA scans and provide semi-quantitative collateral scores, offering a comprehensive approach for automated stroke diagnostics in patients with LVO.</p>", "author": [ { "family": "Bagcilar", "given": " Omer" }, { "family": "Alis", "given": " Deniz" }, { "family": "Alis", "given": " Ceren" }, { "family": "Seker", "given": " Mustafa Ege" }, { "family": "Yergin", "given": " Mert" }, { "family": "Ustundag", "given": " Ahmet" }, { "family": "Hikmet", "given": " Emil" }, { "family": "Tezcan", "given": " Alperen" }, { "family": "Polat", "given": " Gokhan" }, { "family": "Akkus", "given": " Ahmet Tugrul" }, { "family": "Alper", "given": " Fatih" }, { "family": "Velioglu", "given": " Murat" }, { "family": "Yildiz", "given": " Omer" }, { "family": "Selcuk", "given": " Hakan Hatem" }, { "family": "Oksuz", "given": " Ilkay" }, { "family": "Kizilkilic", "given": " Osman" }, { "family": "Karaarslan", "given": " Ercan" } ], "container_title": "SCIENTIFIC REPORTS", "id": "266320", "issue": "1", "issued": { "date-parts": [ [ 2023, 1, 1 ] ] }, "page": "9", "title": "Automated LVO detection and collateral scoring on CTA using a 3D self-configuring object detection network: a multi-center study", "type": "article-journal", "volume": "13" }
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