{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T00:04:24Z","timestamp":1784765064087,"version":"3.55.0"},"reference-count":25,"publisher":"FapUNIFESP (SciELO)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Radiol Bras"],"abstract":"<jats:p>Abstract  Objective: To identify, in patients with clinical suspicion of ureterolithiasis, epidemiological and imaging features that affect calculus detection on ultrasound, as well as to compare ultrasound with multidetector computed tomography (MDCT).  Materials and Methods: We searched our database for patients who underwent ultrasound, followed by MDCT (if the ultrasound was negative), for suspected ureterolithiasis in an emergency setting. Patients were divided into three groups: positive ultrasound (US+); negative ultrasound\/positive MDCT (US\u2212\/MDCT+); and negative ultrasound\/negative MDCT (US\u2212\/MDCT\u2212). We evaluated age, gender, ureterolithiasis laterality, location of the calculus within the ureter, body mass index, calculus diameter, and calculus attenuation on MDCT.  Results: Of a total of 292 cases of suspected ureterolithiasis, 155 (53.1%) were in the US+ group, 46 (15.7%) were in the US\u2212\/MDCT+ group, and 91 (31.2%) were in the US\u2212\/MDCT\u2212 group. There were no significant differences among the groups in terms of age, gender, ureterolithiasis laterality, and mean MDCT attenuation values. Distal ureterolithiasis was most common in the US+ group, and calculi at other ureteral locations were more common in the US\u2212\/MDCT+ group. The mean body mass index was significantly higher in the US\u2212\/MDCT+ group than in the US+ group, and the mean calculus diameter was significantly greater in the US+ group than in the US\u2212\/MDCT+ group.  Conclusion: A high body mass index, large calculus diameter, and calculus location in the distal third of the ureter are the major factors favoring ureterolithiasis detection on ultrasound.<\/jats:p>","DOI":"10.1590\/0100-3984.2017.0113","type":"journal-article","created":{"date-parts":[[2018,9,22]],"date-time":"2018-09-22T19:22:55Z","timestamp":1537644175000},"page":"287-292","source":"Crossref","is-referenced-by-count":7,"title":["Epidemiological and imaging features that can affect the detection of ureterolithiasis on ultrasound"],"prefix":"10.1590","volume":"51","author":[{"given":"Daniela Rebou\u00e7as","family":"Nery","sequence":"first","affiliation":[{"name":"Universidade Federal da Bahia,  Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yves Boher","family":"Costa","sequence":"additional","affiliation":[{"name":"MedRadius,  Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thais Caldara","family":"Mussi","sequence":"additional","affiliation":[{"name":"Hospital Israelita Albert Einstein,  Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ronaldo Hueb","family":"Baroni","sequence":"additional","affiliation":[{"name":"Hospital Israelita Albert Einstein,  Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"530","published-online":{"date-parts":[[2018,9,21]]},"reference":[{"key":"ref1","first-page":"188","article-title":"The sensitivity of transabdominal ultrasound in the diagnosis of ureterolithiasis","volume":"12","author":"Mos C","year":"2010","journal-title":"Med Ultrason."},{"key":"ref2","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1024\/0040-5930.60.2.79","article-title":"Pathophysiology, diagnosis and conservative therapy in calcium kidney calculi","volume":"60","author":"Hess B","year":"2003","journal-title":"Ther 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Ultrasound"},{"key":"ref7","doi-asserted-by":"crossref","first-page":"441","DOI":"10.1007\/s13244-015-0396-y","article-title":"Imaging patients with renal colic-consider ultrasound first","volume":"6","author":"Nicolau C","year":"2015","journal-title":"Insights Imaging"},{"key":"ref8","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1148\/radiol.2221010453","article-title":"US for detecting renal calculi with nonenhanced CT as a reference standard","volume":"222","author":"Fowler KA","year":"2002","journal-title":"Radiology"},{"key":"ref9","doi-asserted-by":"crossref","first-page":"379","DOI":"10.2214\/ajr.178.2.1780379","article-title":"Suspected ureteral colic: primary helical CT versus selective helical CT after unenhanced radiography and sonography","volume":"178","author":"Catalano O","year":"2002","journal-title":"AJR Am J Roentgenol"},{"key":"ref10","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1007\/BF02926914","article-title":"Role of ultrasound in medical management of patients with renal stone disease","volume":"14","author":"Vrtiska TJ","year":"1992","journal-title":"Urol Radiol"},{"key":"ref11","doi-asserted-by":"crossref","first-page":"97","DOI":"10.2214\/ajr.166.1.8571915","article-title":"Diagnosis of acute flank pain: value of unenhanced helical CT","volume":"166","author":"Smith RC","year":"1996","journal-title":"AJR Am J Roentgenol"},{"key":"ref12","doi-asserted-by":"crossref","first-page":"1491","DOI":"10.2214\/ajr.172.6.10350278","article-title":"Radiologic investigation of renal colic: unenhanced helical CT compared with excretory urography","volume":"172","author":"Sourtzis S","year":"1999","journal-title":"AJR Am J Roentgenol"},{"key":"ref13","doi-asserted-by":"crossref","first-page":"901","DOI":"10.1259\/bjr.74.886.740901","article-title":"Ultrasound vs CT for the detection of ureteric stones in patients with renal colic","volume":"74","author":"Patlas M","year":"2001","journal-title":"Br J Radiol"},{"key":"ref14","doi-asserted-by":"crossref","first-page":"263","DOI":"10.1007\/s00261-003-0098-7","article-title":"Ureteral colic: US versus CT","volume":"29","author":"Ripoll\u00e9s T","year":"2004","journal-title":"Abdom Imaging"},{"key":"ref15","doi-asserted-by":"crossref","first-page":"13","DOI":"10.2214\/ajr.172.1.9888730","article-title":"Distinguishing pelvic phleboliths from distal ureteral stones on routine unenhanced helical CT: is there a radiolucent center?","volume":"172","author":"Traubici J","year":"1999","journal-title":"AJR Am J Roentgenol"},{"key":"ref16","doi-asserted-by":"crossref","first-page":"1620","DOI":"10.1007\/s003300000549","article-title":"Cost analysis of different protocols for imaging a patient with acute flank pain","volume":"10","author":"Grisi G","year":"2000","journal-title":"Eur Radiol"},{"key":"ref17","doi-asserted-by":"crossref","first-page":"654","DOI":"10.1038\/nrurol.2016.154","article-title":"An overview of kidney stone imaging techniques","volume":"13","author":"Brisbane W","year":"2016","journal-title":"Nat Rev Urol"},{"key":"ref18","doi-asserted-by":"crossref","first-page":"227","DOI":"10.1097\/RUQ.0b013e3182625974","article-title":"ACR Appropriateness Criteria(r) acute onset flank pain-suspicion of stone disease","volume":"28","author":"Coursey CA","year":"2012","journal-title":"Ultrasound Q"},{"key":"ref19","doi-asserted-by":"crossref","first-page":"39","DOI":"10.1046\/j.1440-1622.2000.01740.x","article-title":"A protocol of early spiral computed tomography for the detection of stones in patients with renal colic has reduced the time to diagnosis and overall management costs","volume":"70","author":"Patel M","year":"2000","journal-title":"Aust N Z J Surg"},{"key":"ref20","doi-asserted-by":"crossref","first-page":"792","DOI":"10.1148\/radiology.217.3.r00dc41792","article-title":"Nonenhanced helical CT and US in the emergency evaluation of patients with renal colic: prospective 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