Does the hounsfield ünit value determined by computed tomography predict the outcome of percutaneous nephrolithotomy?

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dc.authorid0000-0002-4313-8478
dc.authorid0000-0003-1698-8263
dc.authorid0000-0001-6893-2697
dc.contributor.authorGücük, Adnan
dc.contributor.authorÜyetürk, Uğur
dc.contributor.authorÖztürk, Ufuk
dc.contributor.authorKemahlı, Eray
dc.contributor.authorYıldız, Mevlüt
dc.contributor.authorMetin, Ahmet
dc.date.accessioned2021-06-23T19:29:29Z
dc.date.available2021-06-23T19:29:29Z
dc.date.issued2012
dc.departmentBAİBÜ, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümüen_US
dc.description.abstractPurpose: We aimed to evaluate whether the Hounsfield unit (HU) value predicts outcome in percutaneous nephrolithotomy (PCNL). Patients and Methods: One hundred and seventy-nine patients who had undergone PCNL in our clinics in the last 4 years were included. Demographic and clinical data of the patients and complications, if any, were recorded. The mean age of the patients was 45.3 +/- 14.3 years (range 5-82 y), and 111 of them were males (62%). The mean stone size and HU values were found to be 693.1 +/- 628.0 (95-4200) mm 2 and 706.3 +/- 245.0 (214-1325), respectively. Results: In logistic regression analysis, the size of the stone, the opacity of the stone, and the HU values were found to be independent predictors of the failure of the procedure (P < 0.05). A cutoff value of 677.5 was used for the HU in the receiver operating characteristics analysis. Having a HU value under the cutoff value increased the likelihood of procedure failure by 2.65 times, whereas stones residing in the staghorn localization increased failure by 5.68. It was also observed that if the stone's size was 485 mm(2) or more, the chance of failure increased by 1.9, whereas when the stone was nonopaque, failure increased by 6.04 times (P < 0.05). There was a positive correlation between hematocrit decrease and a decrease in HU values (P < 0.05), but no correlation was observed between the HU values and duration of surgery or fluoroscopy (P > 0.05). Conclusion: In addition to the size and location of the stones, the HU value determined in the unenhanced CT scan may be one of the parameters affecting PCNL outcomes. PCNL is a more efficient method in stones with higher HU values. Therefore, the HU values may be a useful tool for the selection of the treatment modality in patients with renal stones.en_US
dc.identifier.doi10.1089/end.2011.0518
dc.identifier.endpage796en_US
dc.identifier.issn0892-7790
dc.identifier.issue7en_US
dc.identifier.pmid22201298en_US
dc.identifier.scopus2-s2.0-84863829460en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage792en_US
dc.identifier.urihttps://doi.org/10.1089/end.2011.0518
dc.identifier.urihttps://hdl.handle.net/20.500.12491/7180
dc.identifier.volume26en_US
dc.identifier.wosWOS:000306329400006en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorGücük, Adnan
dc.institutionauthorÜyetürk, Uğur
dc.institutionauthorKemahlı, Eray
dc.institutionauthorYıldız, Mevlüt
dc.institutionauthorMetin, Ahmet
dc.language.isoenen_US
dc.publisherMary Ann Liebert Incen_US
dc.relation.ispartofJournal Of Endourologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPercutaneous Nephrolithotomyen_US
dc.titleDoes the hounsfield ünit value determined by computed tomography predict the outcome of percutaneous nephrolithotomy?en_US
dc.typeArticleen_US

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