{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T21:32:48Z","timestamp":1789421568006,"version":"build-2803163510"},"reference-count":25,"publisher":"Springer Science and Business Media LLC","issue":"3","license":[{"start":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T00:00:00Z","timestamp":1768348800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T00:00:00Z","timestamp":1768348800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100002386","name":"Cairo University","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100002386","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["OBES SURG"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>The method for assessing the bowel length is debatable but crucial in bariatric surgeries, especially revisional ones. It may be linked to improved weight loss and reducing nutritional deficiencies; however, it can be time-consuming, increasing the likelihood of complications during and after the surgery. 3D CT volumetry could offer a non-invasive, time-saving alternative for accurate Total Bowel Length (TBL) measurement, potentially reducing operative time and associated risks.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>This study compares small bowel length using 3D CT volumetry versus in vivo laparoscopic measurement with pre-marked graspers, and assesses the time consumed intra-operatively for TBL measurement in cases of revisional bariatric surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This cross-sectional study included 34 bariatric surgery candidates undergoing revisional or conversion bariatric surgery requiring bowel length estimation. Surgeries included Roux-en-Y gastric bypass (RYGB), single anastomosis duodeno-ileal bypass with sleeve gastrectomy (SADI-S), one-anastomosis gastric bypass (OAGB), banded Roux-en-Y gastric bypass (banded RYGB), and distalization. Pre-operatively, 3D CT volumetry-based bowel length measurements were performed and interpreted by the same radiologist, and compared with intraoperative bowel measurements, which were estimated in vivo laparoscopically using pre-marked graspers. A single surgeon did all the surgical procedures.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The participants had an average age of 42.0 years and a mean BMI of 40.4\u2009\u00b1\u20097.6\u00a0kg\/m\u00b2. The cohort was predominantly female (73.5%). The bowel length estimation took an average of 19\u2009\u00b1\u20094\u00a0min intra-operatively. A comparison of radiographic and intraoperative measurements showed no significant differences for TBL (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.264). The intraclass correlation (ICC) for radiographic and intraoperative measurements showed that radiographic TBL shows acceptable consistency (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.007).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>3D CT volumetry can be considered a reliable and safe method for TBL assessment. It aids in accurate preoperative planning, reduces operative time, and avoids the risks encountered during intraoperative bowel measurements in bariatric surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Key Points<\/jats:title>\n                    <jats:p>\n                      \u2022\n                      <jats:italic>An ideal bowel length should achieve effective weight loss while minimizing nutritional deficiencies.<\/jats:italic>\n                    <\/jats:p>\n                    <jats:p>\n                      \u2022\n                      <jats:italic>Estimation of total bowel length using 3D CT volumetry shows reliable results compared to intraoperative measurements.<\/jats:italic>\n                    <\/jats:p>\n                    <jats:p>\n                      \u2022\n                      <jats:italic>Estimation of total bowel length using 3D CT volumetry minimizes operative time.<\/jats:italic>\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s11695-025-08446-8","type":"journal-article","created":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T02:22:14Z","timestamp":1768357334000},"page":"1069-1079","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Small Intestine Length Measurement Using 3D CT Volumetry and in Vivo Laparoscopic Measurement Using Pre-marked Graspers: A Comparative Study"],"prefix":"10.1007","volume":"36","author":[{"given":"Ahmed","family":"Abdelsalam","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed","family":"Ghobashy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed","family":"Abdellatif","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tamer","family":"Elholiby","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed","family":"Haitham","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed","family":"Khaled","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed","family":"Refaat","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,1,14]]},"reference":[{"issue":"2","key":"8446_CR1","doi-asserted-by":"publisher","first-page":"256","DOI":"10.3390\/medicina60020256","volume":"60","author":"S Karagul","year":"2024","unstructured":"Karagul S, Senol S, Karakose O, Uzunoglu K, Kayaalp C. 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