{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,7]],"date-time":"2026-11-07T01:00:27Z","timestamp":1794013227608,"version":"4.8.0"},"reference-count":9,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:sec>\n            <jats:title>Objective:<\/jats:title>\n            <jats:p>To develop a nomogram for pediatric bladder volumes associated with the successful completion of transabdominal pelvic ultrasound (TPU) in female pediatric patients presenting with lower abdominal and\/or pelvic pain in the emergency department. This study hypothesizes that the target bladder volumes for successful TPU vary by age and weight.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods:<\/jats:title>\n            <jats:p>We retrospectively calculated bladder volumes on all successful transabdominal pelvic ultrasound studies during a 2-year period for patients 8 to 18 years old by ellipsoid bladder volume formula using the largest cross-sectional areas captured on transverse and longitudinal cine clips. Measurements were collected by 2 study personnel with initial measurements validated by a pediatric radiologist. Bladder volume by age and weight percentile groups were descriptively analyzed, and a quantile regression model was used to regress bladder volume on age adjusting for patient weight.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results:<\/jats:title>\n            <jats:p>We analyzed bladder volumes from 1030 successful transabdominal pelvic ultrasound studies. The greatest drop in median volume was seen amongst non-overweight children in younger age groups. Nomogram bladder volumes for transabdominal pelvic ultrasound increase consistently with age and weight until approximately 13 years old and 60\u00a0kg, respectively, with minimal change thereafter in patients 13 to 18 years old.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions:<\/jats:title>\n            <jats:p>We provide a pediatric age-based and weight-adjusted nomogram for bladder volumes associated with successful transabdominal pelvic ultrasound imaging. Further evaluation of its use is warranted to decrease inefficiency in bladder filling prior to TPU completion and improve timeliness in diagnosing pelvic emergencies.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1097\/pec.0000000000003344","type":"journal-article","created":{"date-parts":[[2025,2,4]],"date-time":"2025-02-04T09:00:07Z","timestamp":1738659607000},"page":"311-314","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":2,"title":["Development of a Pediatric Age-Based and Weight-Adjusted Nomogram for Bladder Volumes Associated With Successful Completion of Transabdominal Pelvic Ultrasound"],"prefix":"10.1097","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-6142-9935","authenticated-orcid":false,"given":"Patrick C.","family":"Drayna","sequence":"first","affiliation":[{"name":"Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cameron","family":"Johnson","sequence":"additional","affiliation":[{"name":"Department of Emergency Medicine, St. Luke\u2019s Hospital, Duluth, MN"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sri S.","family":"Chinta","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hayder","family":"Jaafar","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Danny","family":"Thomas","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexis","family":"Visotcky","sequence":"additional","affiliation":[{"name":"Division of Biostatistics, Institution for Health & Equity, Medical College of Wisconsin, Milwaukee, WI"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amanda S.","family":"Dupont","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sachin","family":"Kumbhar","sequence":"additional","affiliation":[{"name":"Department of Radiology, Virginia Mason Franciscan Health, Seattle, WA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2025,2,4]]},"reference":[{"key":"R1-20250519","doi-asserted-by":"crossref","first-page":"1393","DOI":"10.1148\/radiographics.21.6.g01nv041393","article-title":"US of the pediatric female pelvis: a clinical perspective","volume":"21","author":"Garel","year":"2001","journal-title":"Radiographics"},{"key":"R2-20250519","doi-asserted-by":"crossref","first-page":"462","DOI":"10.1016\/S0002-9610(00)00503-1","article-title":"Acute ovarian torsion in children","volume":"180","author":"Kokoska","year":"2000","journal-title":"Am J Surg"},{"key":"R3-20250519","doi-asserted-by":"crossref","first-page":"317","DOI":"10.1067\/j.cpradiol.2016.12.010","article-title":"Imaging of acute pelvic pain in girls: ovarian torsion and beyond","volume":"46","author":"Naffaa","year":"2017","journal-title":"Curr Probl Diagn Radiol"},{"key":"R4-20250519","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1053\/j.sult.2007.12.002","article-title":"Ultrasound of the pediatric female pelvis","volume":"29","author":"Stranzinger","year":"2008","journal-title":"Semin Ultrasound CT MR"},{"key":"R5-20250519","doi-asserted-by":"crossref","first-page":"414","DOI":"10.1017\/cem.2016.23","article-title":"The effect of a full bladder on proportions of diagnostic ultrasound studies in children with suspected appendicitis","volume":"18","author":"Ross","year":"2016","journal-title":"CJEM"},{"key":"R6-20250519","doi-asserted-by":"crossref","first-page":"1313","DOI":"10.1007\/s00247-019-04460-y","article-title":"Non-visualization of the ovaries on pediatric transabdominal ultrasound with a non-distended bladder: Can adnexal torsion be excluded?","volume":"49","author":"Shapira-Zaltsberg","year":"2019","journal-title":"Pediatr Radiol"},{"key":"R7-20250519","doi-asserted-by":"crossref","first-page":"571","DOI":"10.1016\/j.annemergmed.2018.04.010","article-title":"Point-of-care ultrasound assessment of bladder fullness for female patients awaiting radiology-performed transabdominal pelvic ultrasound in a pediatric emergency department: a randomized controlled trial","volume":"72","author":"Dessie","year":"2018","journal-title":"Ann Emerg Med"},{"key":"R9-20250519","doi-asserted-by":"crossref","first-page":"e709","DOI":"10.1097\/pq9.0000000000000709","article-title":"Improving pediatric ovarian torsion evaluation in the pediatric emergency department: a quality improvement initiative","volume":"8","author":"Park","year":"2023","journal-title":"Pediatr Qual Saf"},{"key":"R10-20250519","doi-asserted-by":"crossref","first-page":"e730","DOI":"10.1097\/pq9.0000000000000730","article-title":"Improving turnaround time of transabdominal pelvic ultrasounds with ovarian Doppler in a pediatric emergency department","volume":"9","author":"Dupont","year":"2024","journal-title":"Pediatr Qual Saf"}],"container-title":["Pediatric Emergency Care"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.lww.com\/10.1097\/PEC.0000000000003344","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,5,19]],"date-time":"2025-05-19T14:00:51Z","timestamp":1747663251000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.lww.com\/10.1097\/PEC.0000000000003344"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,2,4]]},"references-count":9,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2025]]}},"URL":"https:\/\/doi.org\/10.1097\/pec.0000000000003344","relation":{},"ISSN":["0749-5161","1535-1815"],"issn-type":[{"value":"0749-5161","type":"print"},{"value":"1535-1815","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,2,4]]},"assertion":[{"value":"2024-08-08","name":"received","label":"Received","group":{"name":"publication_history","label":"Publication 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