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This study aimed to establish the deep learning (DL)-based method for vessel model reconstruction. Time of flight MRA of 40 patients with internal carotid artery aneurysms was prepared, and three-dimensional vessel models were constructed using the threshold and region-growing method. Using those datasets, supervised deep learning using 2D U-net was performed to reconstruct 3D vessel models. The accuracy of the DL-based vessel segmentations was assessed using 20 MRA images outside the training dataset. The dice coefficient was used as the indicator of the model accuracy, and the blood flow simulation was performed using the DL-based vessel model. The created DL model could successfully reconstruct a three-dimensional model in all 60 cases. The dice coefficient in the test dataset was 0.859. Of note, the DL-generated model proved its efficacy even for large aneurysms (&gt;\u200910\u00a0mm in their diameter). The reconstructed model was feasible in performing blood flow simulation to assist clinical decision-making. Our DL-based method could successfully reconstruct a three-dimensional vessel model with moderate accuracy. Future studies are warranted to exhibit that DL-based technology can promote medical image processing.<\/jats:p>\n                <jats:p><jats:bold>Graphical Abstract<\/jats:bold><\/jats:p>","DOI":"10.1007\/s11517-024-03136-6","type":"journal-article","created":{"date-parts":[[2024,5,28]],"date-time":"2024-05-28T00:01:32Z","timestamp":1716854492000},"page":"3225-3232","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Patient-specific cerebral 3D vessel model reconstruction using deep learning"],"prefix":"10.1007","volume":"62","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6506-8055","authenticated-orcid":false,"given":"Satoshi","family":"Koizumi","sequence":"first","affiliation":[]},{"given":"Taichi","family":"Kin","sequence":"additional","affiliation":[]},{"given":"Naoyuki","family":"Shono","sequence":"additional","affiliation":[]},{"given":"Satoshi","family":"Kiyofuji","sequence":"additional","affiliation":[]},{"given":"Motoyuki","family":"Umekawa","sequence":"additional","affiliation":[]},{"given":"Katsuya","family":"Sato","sequence":"additional","affiliation":[]},{"given":"Nobuhito","family":"Saito","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2024,5,28]]},"reference":[{"key":"3136_CR1","doi-asserted-by":"publisher","first-page":"121","DOI":"10.1227\/01.NEU.0000347890.19718.0A","volume":"65","author":"T Kin","year":"2009","unstructured":"Kin T, Oyama H, Kamada K, Aoki S, Ohtomo K, Saito N (2009) Prediction of surgical view of neurovascular decompression using interactive computer graphics. 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