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We curated dual-phase contrast-enhanced abdominal CT (CECT) scans from 60 adults imaged over one year on a Siemens SOMATOM Force scanner (slice thickness 0.75\u2009mm). Arterial phases (25-30 s) and venous phases (55\u201360 s) were manually segmented in 3D Slicer by an experienced surgeon and verified by a senior colorectal surgeon; without inter-phase registration to preserve native characteristics. The resource includes 60 CECT studies (50 dual-phase, 10 venous only), each containing \u00a0~700\u2013900 axial slices. Deliverables comprise CECT volumes, per-structure 3D label masks for major mesenteric arteries and veins. Example figures of overlays and 3D masks are provided. Intended uses include vessel segmentation, vascular-aware surgical planning, and registration research. Limitations include single-institution acquisition, difficulty delineating small vessels &lt;4\u2009mm, absence of inter-phase registration, and altered vascular anatomy from surgeries.<\/jats:p>","DOI":"10.1038\/s41597-026-07303-2","type":"journal-article","created":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T09:14:41Z","timestamp":1777886081000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Dataset of Abdominal CT with Artery and Vein Segmentations for Colorectal Cancer Surgical Planning"],"prefix":"10.1038","volume":"13","author":[{"given":"Jan","family":"Hrubovcak","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Petr","family":"Strakos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"Kubicek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Khyati","family":"Sethia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sumit","family":"Kaushik","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Milan","family":"Jaros","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lubomir","family":"Martinek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marek","family":"Penhaker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jana","family":"Bahrova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie","family":"Chadrabova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michal","family":"Nohel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lukas","family":"Knybel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomas","family":"Blazek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"Migulski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lubomir","family":"Riha","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,5,4]]},"reference":[{"key":"7303_CR1","doi-asserted-by":"publisher","unstructured":"Tong, T. & Li, M., Abdominal or pelvic enhanced CT images within 10 days before surgery of 230 patients with stage II colorectal cancer (STAGEII-COLORECTAL-CT) [Dataset]. 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