NDLI: Impact of urinary stone volume on computed tomography stone attenuations measured in Hounsfield units in a large group of Austrian patients with urolithiasis.

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Impact of urinary stone volume on computed tomography stone attenuations measured in Hounsfield units in a large group of Austrian patients with urolithiasis.

Content Provider	Europe PMC
Author	Al–Ali, Badereddin Mohamad Patzak, Johanna Lutfi, Andre Pummer, Karl Augustin, Herbert
Copyright Year	2014
Abstract	IntroductionTo investigate retrospectively the impact of urinary stone volume on computed tomography stone attenuations measured in Hounsfield units in 253 patients with urolithiasis.Material and methodsCT scans were performed in 253 patients with suspected urinary stone disease from 2008 to 2010 using CT–Scanner Siemens, SOMATOM, Sensation 64. One experienced radiologist (A.L) who was blinded to the chemical composition of the stones retrospectively reviewed images and analyzed data to determine the composition of the stones. The results were compared with the biochemical analysis results obtained by infrared spectroscopy (100 FTIR, PerkinElmer).Results253 consecutive patients from 2008 to 2010 were included into analysis: 189 males, and 64 females. Mean age was 51.2. According to stone volume, stones were divided into 2 groups: 126 stones with volume of 4.3 mm or more, 127 stones with volume less than 4.3 mm. There was a significant relationship between stone volume and its CT attenuation only in stones with a volume 4.3 mm or more (p <0.05).ConclusionsWe failed to show a significant relationship between stone volume and its attenuations in Hounsfield units. We could not distinguish uric acid stones from non uric acid stones.
ISSN	20804806
Journal	Central European Journal of Urology
Volume Number	67
PubMed Central reference number	PMC4165675
Issue Number	3
PubMed reference number	25247090
e-ISSN	20804873
DOI	10.5173/ceju.2014.03.art16
Language	English
Publisher	Polish Urological Association
Publisher Date	2014-08-18
Access Restriction	Open
Rights License	This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License, permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copyright by Polish Urological Association
Subject Keyword	computed tomography uric acid stones Hounsfield units none uric acid stones regions of interest shock wave lithotripsy
Content Type	Text
Resource Type	Article
Subject	Urology

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