Three-dimensional assessment of urinary stone on non-contrast helical computed tomography as the predictor of stonestreet formation after extracorporeal shock wave lithotripsy for stones smaller than 20 mm.

Three-dimensional assessment of urinary stone on non-contrast helical computed tomography as the predictor of stonestreet formation after extracorporeal shock wave lithotripsy for stones smaller than 20 mm. Research Abstract Details 

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Three-dimensional assessment of urinary stone on non-contrast helical computed tomography as the predictor of stonestreet formation after extracorporeal shock wave lithotripsy for stones smaller than 20 mm. Abstract Text:

Soichiro Yoshida,Tetsuo Hayashi,Makoto Morozumi,Hisato Osada,Norinari Honda,Takumi Yamada,Soichiro Yoshida,Tetsuo Hayashi,Makoto Morozumi,Hisato Osada,Norinari Honda,Takumi Yamada,

The incidence of stonestreet formation after extracorporeal shock wave lithotripsy (ESWL) rises with increasing stone burden. However, stonestreet after ESWL is often experienced even in stones smaller than 20 mm. To examine whether the non-contrast helical computed tomography (CT) data could predict stonestreet formation in these stones, 53 radiopaque stones of 5-20 mm treated with ESWL were evaluated. Maximal dimension was measured on plain radiograph. From an attenuation value histogram graphed from the CT data, total stone volume and mean attenuation value were calculated. Seven stonestreets longer than 25 mm developed. There was no significant difference in maximal dimension and total stone volume between stones that did and stones that did not develop stonestreet. Mean attenuation value was the sole significant predictive factor. Application of mean attenuation value with cut-off level of 650 HU would anticipate stonestreet formation with a sensitivity of 85.7% and a specificity of 71.7%. The estimated risk of stonestreet formation is high in the treatment of stones with higher mean attenuation value.

Three-dimensional assessment of urinary stone on non-contrast helical computed tomography as the predictor of stonestreet formation after extracorporeal shock wave lithotripsy for stones smaller than 20 mm. Publishing Authors By Initials

S Yoshida,T Hayashi,M Morozumi,H Osada,N Honda,T Yamada,S Yoshida,T Hayashi,M Morozumi,H Osada,N Honda,T Yamada,

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Three-dimensional assessment of urinary stone on non-contrast helical computed tomography as the predictor of stonestreet formation after extracorporeal shock wave lithotripsy for stones smaller than 20 mm. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: International journal of urology : official journa

VOLUME: 14

Page Numbers: 665-7

Journal Abbreviation: Int. J. Urol.

ISSN: 0919-8172

DAY: 24

MONTH: Jul

YEAR: 2007

Three-dimensional assessment of urinary stone on non-contrast helical computed tomography as the predictor of stonestreet formation after extracorporeal shock wave lithotripsy for stones smaller than 20 mm. Information

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LANGUAGE: eng

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Three-dimensional assessment of urinary stone on non-contrast helical computed tomography as the predictor of stonestreet formation after extracorporeal shock wave lithotripsy for stones smaller than 20 mm. Keywords Mesh Terms:

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Grant and Affiliation Information for Three-dimensional assessment of urinary stone on non-contrast helical computed tomography as the predictor of stonestreet formation after extracorporeal shock wave lithotripsy for stones smaller than 20 mm.

AFFILIATION: Department of Urology, Saitama Medical Center, Saitama Medical School, Kawagoe, Saitama, Japan. soichiroyoshida2000@yahoo.co.jp

Country: Australia

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MEDLINETA: Int J Urol

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