Evaluation of Hounsfield Units as a predictive factor for the outcome of extracorporeal shock wave lithotripsy and stone composition
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- 作者：Takehiko Nakasato ; Jun Morita ; Yoshio Ogawa
- 关键词：Computed tomography ; Extracorporeal shock wave lithotripsy ; Hounsfield Unit ; Stone composition ; Urinary stone
- 刊名：Urological Research
- 出版年：2015
- 出版时间：February 2015
- 年：2015
- 卷：43
- 期：1
- 页码：69-75
- 全文大小：359 KB
- 参考文献：1. Chaussy C, Brendel W, Schmiedt E (1980) Extracorporeally induced destruction of kidney stones by shock waves. Lancet 2:1265-268 CrossRef
2. Preminger GM, Tiselius HG, Assimos DG et al (2007) Guideline for the management of ureteral calculi. J Urol 178:2418-434 CrossRef
3. Bourdoumis A, Miernik A, Hawizy A et al (2014) A comprehensive update on urinary tract lithiasis management. Panminerva Med 56:1-5
4. Imamura Y, Kawamura K, Sazuka T et al (2013) Development of a nomogram for predicting the stone-free rate after transurethral ureterolithotripsy using semi-rigid ureteroscope. Int J Urol 20:616-21 CrossRef
5. Joseph P, Mandal AK, Singh SK, Mandal P, Sankhwar SN, Sharma SK (2002) Computerized tomography attenuation value of renal calculus: can it predict successful fragmentation of calculus by extracorporeal shock wave lithotripsy? A preliminary study. J Urol 167:1968-971 CrossRef
6. Weld KJ, Montiglio C, Morris MS, Bush AC, Cespedes RD (2007) Shock wave lithotripsy success for renal stones based on patient and stone computed tomography characteristics. Urology 70:1043-046 CrossRef
7. Gupta NP, Ansari MS, Kesarvani P, Kapoor A, Mukhopadhyay S (2005) Role of computed tomography with no contrast medium enhancement in predicting the outcome of extracorporeal shock wave lithotripsy for urinary calculi. BJU Int 95:1285-288 CrossRef
8. Yoshida S, Hayashi T, Ikeda J et al (2006) Role of volume and attenuation value histogram of urinary stone on noncontrast helical computed tomography as predictor of fragility by extracorporeal shock wave lithotripsy. Urology 68:33-7 CrossRef
9. El-Nahas AR, El Assmy AM, Mansour O, Sheir KZ (2007) A prospective multivariate analysis of factors predicting stone disintegration by extracorporeal shock wave lithotripsy: the value of high-resolution noncontrast computed tomography. Eur Urol 51:1688-693 CrossRef
10. Park YI, Yu JH, Sung LH, Noh CH, Chung JY (2010) Evaluation of possible predictive variables for the outcome of shock wave lithotripsy of renal stones. Korean J Urol 51:713-18 CrossRef
11. Ouzaid I, Al-Qahtani S, Dominique S et al (2012) A 970 Hounsfield units (HU) threshold of kidney stone density on non-contrast computed tomography (NCCT) improves patients-selection for extracorporeal shockwave lithotripsy (ESWL): evidence from a prospective study. BJU Int 110:E438–E442 CrossRef
12. Ng CF, Siu DY, Wong A, Goggins W, Chan ES, Wong KT (2009) Development of a scoring system from noncontrast computerized tomography measurements to improve the selection of upper ureteral stone for extracorporeal shock wave lithotripsy. J Urol 181:1151-157 CrossRef
13. Patel SR, Haleblian G, Zabbo A, Pareek G (2009) Hounsfield units on computed tomography predict calcium stone subtype composition. Urol Int 83:175-80 CrossRef
14. Deveci S, Coskun M, Tekin MI, Peskircioglu L, Tarhan NC, Ozkardes H (2004) Spiral computed tomography: role in determination of chemical compositions of pure and mixed urinary stones: an in vitro study. Urology 64:237-40 CrossRef
15. Mostafavi MR, Ernst RD, Saltzman B (1998) Accurate determination of chemical composition of urinary stones by spiral computerized tomography. J Urol 159:673-75
文摘
The objective of this study was to evaluate the utility of the Hounsfield Unit (HU) values as a predictive factor of extracorporeal shock wave lithotripsy outcome for ureteral and renal stones. We also assessed the possibility that HU values could be used to predict stone composition. A retrospective study was performed to measure stone HU values in 260 patients who underwent extracorporeal shock wave lithotripsy (ESWL) for solitary renal and ureteral stones from July 2007 to January 2012. Stone volume, location, skin-to-stone distance, stone HU values, and stone composition were assessed. Success of ESWL was defined as: (1) being stone-free or (2) residual stone fragments ESWL. Multivariate analysis revealed that stone location and mean HU were significant predictors of ESWL success. Receiver operating characteristic curves defined cutoff values for predicting treatment outcome. Treatment success rates were significantly higher for stones 815?HU (P?ESWL can predict treatment outcome and aid in the development of treatment strategies.