{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T06:55:59Z","timestamp":1770533759762,"version":"3.49.0"},"reference-count":30,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,9,24]],"date-time":"2025-09-24T00:00:00Z","timestamp":1758672000000},"content-version":"vor","delay-in-days":266,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acute Medicine &amp; Surgery"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Aim<\/jats:title>\n                    <jats:p>Minimizing radiation exposure and preventing pseudoaneurysm rupture are crucial for pediatric patients with delayed pseudoaneurysm following blunt liver and\/or spleen injuries. However, the radiation exposure from follow\u2010up CT scans in patients managed conservatively or with prophylactic embolization remains unclear. This study aimed to evaluate radiation exposure from CT scans based on these management strategies.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This research was a secondary analysis of a multicenter, retrospective observational study that included pediatric patients (\u226416\u2009years old) who sustained blunt liver and\/or spleen injuries at 83 institutions in Japan from 2008 to 2019. Patients diagnosed with delayed pseudoaneurysm, defined as a newly detected pseudoaneurysm on or after the second day post\u2010injury, were included. This descriptive study compared CT\u2010related radiation exposure and rupture rates between patients with and without prophylactic embolization, with radiation exposure assessed using dose length product.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Fifty patients had delayed pseudoaneurysm. Of these, 28 (56%) did not receive prophylactic embolization. The sum of dose length product in patients with delayed pseudoaneurysm not receiving prophylactic embolization was 4203 (1802\u20137503) mGy\u00b7cm, compared with 2492 (1258\u20134457) mGy\u00b7cm in those receiving prophylactic embolization (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.12). Then, pseudoaneurysm rupture occurred in 32% of no prophylactic embolization patients, whereas no ruptures were observed in the embolization group (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.003).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Pediatric patients not receiving prophylactic embolization trended to have high radiation exposure from CT scans and had a higher rate of ruptured delayed pseudoaneurysm compared to those receiving embolization. These findings support further study of strategies to reduce rupture risk and radiation exposure.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ams2.70089","type":"journal-article","created":{"date-parts":[[2025,9,25]],"date-time":"2025-09-25T05:25:24Z","timestamp":1758777924000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["CT radiation exposure and management of delayed pseudoaneurysms in pediatric liver and spleen injuries: A multicenter study"],"prefix":"10.1002","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8814-3871","authenticated-orcid":false,"given":"Atsushi","family":"Tanikawa","sequence":"first","affiliation":[{"name":"Department of Emergency and Critical Care Medicine Tohoku University Hospital  Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daisuke","family":"Kudo","sequence":"additional","affiliation":[{"name":"Department of Emergency and Critical Care Medicine Tohoku University Hospital  Sendai Japan"},{"name":"Division of Emergency and Critical Care Medicine Tohoku University Graduate School of Medicine  Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroyuki","family":"Ohbe","sequence":"additional","affiliation":[{"name":"Department of Emergency and Critical Care Medicine Tohoku University Hospital  Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Morihiro","family":"Katsura","sequence":"additional","affiliation":[{"name":"Department of Surgery Okinawa Chubu Hospital  Uruma Okinawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katsunori","family":"Ono","sequence":"additional","affiliation":[{"name":"Department of Radiological Technology Tohoku University Hospital  Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yohei","family":"Inaba","sequence":"additional","affiliation":[{"name":"Course of Radiological Technology, Health Sciences Tohoku University Graduate School of Medicine  Sendai Japan"},{"name":"Department of Radiation Disaster Medicine, International Research Institute of Disaster Science Tohoku University  Sendai Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9232-5782","authenticated-orcid":false,"given":"Shigeki","family":"Kushimoto","sequence":"additional","affiliation":[{"name":"Department of Emergency and Critical Care Medicine Tohoku University Hospital  Sendai Japan"},{"name":"Division of Emergency and Critical Care Medicine Tohoku University Graduate School of Medicine  Sendai 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