{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T00:30:47Z","timestamp":1759883447690,"version":"build-2065373602"},"reference-count":29,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T00:00:00Z","timestamp":1759795200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T00:00:00Z","timestamp":1759795200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur Radiol Exp"],"abstract":"<jats:sec>\n            <jats:title>Abstract<\/jats:title>\n            <jats:p>The study aimed to evaluate the feasibility of using cone-beam computed tomography (CBCT) for gastric volume assessment before and after endoscopic sleeve gastroplasty (ESG), focusing on patient radiation dose. Ten patients scheduled for ESG were prospectively enrolled. Each patient underwent three CBCT scans under anesthesia: two scans following CO<jats:sub>2<\/jats:sub> insufflation of the gastric lumen\u2014one pre-ESG and one post-ESG\u2014and a third scan post-ESG after gastric distension with Gastrografin. Image quality was evaluated for its adequacy in generating three-dimensional reconstructions and calculating gastric volumes. Dose-area product was recorded for each scan and used to estimate the effective dose (ED) via Monte Carlo simulations using the PCXMC rotational model. Although image quality did not match conventional computed tomography (CT), it was sufficient for three-dimensional reconstruction and gastric volume measurements. The median ED was 4.2\u2009mSv for pre-ESG scans with CO<jats:sub>2<\/jats:sub> insufflation, 4.2\u2009mSv for post-ESG scans with CO2 insufflation, and 4.8\u2009mSv for post-ESG scans with Gastrografin. CBCT provided satisfactory image quality for gastric volumetry at relatively low radiation doses, with ED being approximately 50% of that of conventional CT. This preliminary feasibility study suggests that CBCT could be a useful tool for planning ESG and assessing post-procedural outcomes.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Relevance statement<\/jats:title>\n            <jats:p>Low-dose CBCT provided sufficient image quality for gastric volumetry in a small cohort of patients undergoing ESG, reducing radiation exposure by approximately 50% compared to conventional CT. This investigational technique enables seamless intraoperative imaging that could improve planning and evaluation of endoscopic bariatric procedures.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Key Points<\/jats:title>\n            <jats:p>\n              <jats:list list-type=\"bullet\">\n                <jats:list-item>\n                  <jats:p>CBCT allowed gastric volumetric assessment at a relatively low radiation dose.<\/jats:p>\n                <\/jats:list-item>\n                <jats:list-item>\n                  <jats:p>Scans with CO<jats:sub>2<\/jats:sub> insufflation delivered lower radiation doses than scans with Gastrografin.<\/jats:p>\n                <\/jats:list-item>\n                <jats:list-item>\n                  <jats:p>Scans with CO<jats:sub>2<\/jats:sub> insufflation showed superior image quality compared to scans with Gastrografin.<\/jats:p>\n                <\/jats:list-item>\n                <jats:list-item>\n                  <jats:p>CBCT could be a valuable tool for planning ESG and evaluating outcomes.<\/jats:p>\n                <\/jats:list-item>\n              <\/jats:list>\n            <\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Graphical Abstract<\/jats:title>\n          <\/jats:sec>","DOI":"10.1186\/s41747-025-00637-3","type":"journal-article","created":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T17:27:48Z","timestamp":1759858068000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Low-dose cone-beam CT for gastric volumetry in endoscopic sleeve gastroplasty"],"prefix":"10.1186","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8659-131X","authenticated-orcid":false,"given":"Ilaria","family":"Nacci","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roberto","family":"Moretti","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrea","family":"Morasca","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Valerio","family":"Pontecorvi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cristiano","family":"Spada","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Evis","family":"Sala","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ivo","family":"Bo\u0161koski","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,10,7]]},"reference":[{"key":"637_CR1","doi-asserted-by":"publisher","first-page":"429","DOI":"10.1016\/j.gtc.2023.02.003","volume":"52","author":"TB Washington","year":"2023","unstructured":"Washington TB, Johnson VR, Kendrick K et al (2023) Disparities in access and quality of obesity care. 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Gemelli IRCCS\u2014Universit\u00e0 Cattolica del Sacro Cuore (Prot N. 0028394\/23; October 5, 2023). The study was conducted in accordance with the Declaration of Helsinki.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Participants gave their written informed consent.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"CS consultant for Medtronic and AnX Robotics, speaker\u2019s fees from Olympus and Pentax. ES co-founder and shareholder of Lucida Medical; Research support, GEHC, AWS; Speakers\u2019 bureau, GEHC, BRACCO, Philips, AWS. ES is a member of the scientific editorial board of European Radiology Experimental (section: Artificial intelligence, augmented reality, computer science, and radiomics) and, as such, did not participate in the selection or review processes for this article. IB Consultant for Apollo Endosurgery, Boston Scientific, Nitinotes, Pentax, Cook Medical, Microtech, ERBE, Siemens, Myka labs, and Endo Tools Therapeutics S.A., sponsored lectures for Apollo Endosurgery, Boston Scientific, Cook Medical, and Microtech, recipient of research grants from Apollo Endosurgery, Endo Tool Therapeutics, and ERBE, and is on the scientific advisory boards of Nitinotes and Myka labs. Other authors have no disclosures to report.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"98"}}