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Differentiation of ureteral stones and phleboliths using Hounsfield units on computerized tomography: a new method without observer bias

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dc.contributor.authorŞEKERCİ, ÇAĞRI AKIN
dc.contributor.authorsTanidir, Yiloren; Sahan, Ahmet; Asutay, Mehmet Kazim; Sener, Tarik Emre; Talibzade, Farhad; Garayev, Asgar; Tinay, Ilker; Sekerci, Cagri Akin; Simsek, Ferruh
dc.date.accessioned2022-03-12T20:30:35Z
dc.date.available2022-03-12T20:30:35Z
dc.date.issued2017
dc.description.abstractTo differentiate ureteral stones and phleboliths by measuring density [as Hounsfield unit (HU)] and volume (as mm(3)) of the opacities in the bony pelvis on unenhanced computerized tomography (U-CT). A total of 52 patients, who underwent semirigid ureteroscopy and laser lithotripsy for distal ureteral stone and had isochoronous phleboliths in U-CT, were included. Images were reviewed for density and volume of the opacities. Data were compared, and a cut-off value was defined with receiver operating characteristics curve analysis to differentiate the nature of the opacity. Using the cut-off values of 171 mmA(3) for volume (sensitivity 75 %, specificity 100 %) and 643 HU for density (sensitivity 75 %, specificity 93 %), differentiation between stone and phlebolith was achieved. Differentiation of pelvic opacities needs meticulous observation with certain signs on U-CT. On the other hand, our study offers a new method, with certain cut-off values, such as 643 HU and 171 mm(3), which can be used to precisely predict the actual nature of opacities of interest.
dc.identifier.doi10.1007/s00240-016-0918-1
dc.identifier.eissn2194-7236
dc.identifier.issn2194-7228
dc.identifier.pubmed27638519
dc.identifier.urihttps://hdl.handle.net/11424/234190
dc.identifier.wosWOS:000401444800014
dc.language.isoeng
dc.publisherSPRINGER
dc.relation.ispartofUROLITHIASIS
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectDiagnosis
dc.subjectImaging
dc.subjectHounsfield unit
dc.subjectUreteral stones
dc.subjectUreteroscopy
dc.subjectUNENHANCED HELICAL CT
dc.subjectDUAL-ENERGY CT
dc.subjectDISTINGUISHING PELVIC PHLEBOLITHS
dc.subjectTRACT STONE
dc.subjectCALCULI
dc.subjectURETEROSCOPY
dc.subjectMANAGEMENT
dc.subjectDIAGNOSIS
dc.subjectUROGRAPHY
dc.subjectPROTOCOL
dc.titleDifferentiation of ureteral stones and phleboliths using Hounsfield units on computerized tomography: a new method without observer bias
dc.typearticle
dspace.entity.typePublication
local.avesis.idb5b0e7de-7616-43e9-9fc5-0a2f03546cbc
local.import.packageSS17
local.indexed.atWOS
local.indexed.atSCOPUS
local.indexed.atPUBMED
local.journal.numberofpages6
local.journal.quartileQ2
oaire.citation.endPage328
oaire.citation.issue3
oaire.citation.startPage323
oaire.citation.titleUROLITHIASIS
oaire.citation.volume45
relation.isAuthorOfPublication1e489bdb-418e-4500-a522-6c0babb604b9
relation.isAuthorOfPublication.latestForDiscovery1e489bdb-418e-4500-a522-6c0babb604b9

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