CYSTINE: HELICAL COMPUTERIZED TOMOGRAPHY CHARACTERIZATION OF ROUGH AND SMOOTH CALCULI IN VITRO
2005; Lippincott Williams & Wilkins; Volume: 174; Issue: 4 Part 1 Linguagem: Inglês
10.1097/01.ju.0000173636.19741.24
ISSN1527-3792
AutoresSamuel Kim, Erin K. Hatt, James E. Lingeman, Robert B. Nadler, James A. McAteer, James C. Williams,
Tópico(s)Radioactive element chemistry and processing
ResumoNo AccessJournal of UrologyInvestigative Urology1 Oct 2005CYSTINE: HELICAL COMPUTERIZED TOMOGRAPHY CHARACTERIZATION OF ROUGH AND SMOOTH CALCULI IN VITRO SAMUEL C. KIM, ERIN K. HATT, JAMES E. LINGEMAN, ROBERT B. NADLER, JAMES A. McATEER, and JAMES C. WILLIAMS SAMUEL C. KIMSAMUEL C. KIM , ERIN K. HATTERIN K. HATT , JAMES E. LINGEMANJAMES E. LINGEMAN , ROBERT B. NADLERROBERT B. NADLER , JAMES A. McATEERJAMES A. McATEER , and JAMES C. WILLIAMSJAMES C. WILLIAMS View All Author Informationhttps://doi.org/10.1097/01.ju.0000173636.19741.24AboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract Purpose: The classification of cystine stones into rough and smooth varieties has been suggested as an aid to choosing treatment for these difficult stones. Since the surface of stones is difficult to visualize preoperatively, we tested the hypothesis that the surface morphology of cystine stones correlates with their internal structure, as viewed by helical computerized tomography (CT). Materials and Methods: Cystine stones were examined visually and categorized into rough (15 stones) and smooth (16 stones) subpopulations of similar size. Each stone was scanned in a helical CT scanner (GE Quad Scanner) to assess radiological characteristics and to measure attenuation values. Scans were also performed using a μCT 20 high resolution laboratory scanner (Scanco Medical AG, Bassersdorf, Switzerland) at 34 μm voxel size and the percent of internal voids was determined. Results: Mean helical CT attenuation values ± SD for rough stones were lower than for smooth stones (702 ± 206 vs 921 ± 51 HU, p <0.002) and the radiological appearance of rough stones suggested radiolucent voids. Internal voids in rough stones were confirmed using micro CT. Rough cystine stones contained a higher percent of internal voids (0.30% vs 0.06%, p <0.0001). Conclusions: Rough cystine stones can be distinguished from smooth stones using helical CT in vitro, suggesting that it may be possible to distinguish these stones preoperatively. Since rough cystine stones have been reported to be susceptible to shock wave lithotripsy, the identification of this morphology of cystine stones in the patient using attenuation values and appearance on helical CT could be valuable for planning treatment. References 1 : Cystine calculi. Diagnosis and management. Urol Clin North Am1997; 24: 163. Google Scholar 2 : Cystine lithiasis: study of a series of 116 cases. Prog Urol2000; 10: 1135. Google Scholar 3 : Relative efficacy of extracorporeal shock wave lithotripsy and percutaneous nephrostolithotomy in the management of cystine calculi. J Endourol1989; 3: 273. Google Scholar 4 : Contemporary clinical practice of shock wave lithotripsy: a reevaluation of contraindications. J Urol1997; 157: 1197. Link, Google Scholar 5 : Variability of renal stone fragility in shock wave lithotripsy. Urology2003; 61: 1092. Google Scholar 6 : Cystine calculi—rough and smooth: a new clinical distinction. J Urol1989; 142: 937. Link, Google Scholar 7 : Four multidetector-row helical CT: Image quality and volume coverage speed. Radiology2000; 215: 55. Google Scholar 8 : Optimization of eight-element multi-detector row helical CT technology for evaluation of the abdomen. Radiology2003; 227: 739. Google Scholar 9 : High resolution detection of internal structure in renal calculi by helical computerized tomography. J Urol2002; 167: 322. Link, Google Scholar 10 : Helical computed tomography accurately reports urinary stone composition using attenuation values: in vitro verification using high-resolution micro-computed tomography calibrated to fourier transform infrared microspectroscopy. Urology2004; 63: 828. Google Scholar 11 : Stone internal structure is visible in patients by helical CT. J Urol, suppl.2004; 171: 509. abstract 1926. Abstract, Google Scholar 12 : Helical CT of urinary calculi: effect of stone composition, stone size, and scan collimation. AJR Am J Roentgenol2000; 175: 329. Google Scholar 13 : Stone fragility: a new therapeutic distinction. J Urol1988; 139: 1124. Link, Google Scholar 14 : Effect of the diameter and the sound speed of a kidney stone on the acoustic field induced by shock waves. Acoustic Res Lett Online2004; 5: 37. Google Scholar 15 : Ultrasonic velocities of concentric laminated uric acid stones. Ultrasonics1996; 34: 571. Google Scholar 16 : Effect of overpressure and pulse repetition frequency on cavitation in shock wave lithotripsy. J Acoust Soc Am2002; 112: 1183. Google Scholar From the Methodist Hospital Institute for Kidney Stone Disease (SCK, JEL) and Department of Anatomy and Cell Biology (EKH, JAM, JCW), Indiana University School of Medicine and Indiana Kidney Stone Institute (SCK, EKH, JEL, JAM, JCW), Indianapolis, Indiana, and Department of Urology, Northwestern University Medical School (RBN), Chicago, Illinois© 2005 by American Urological Association, Inc.FiguresReferencesRelatedDetailsCited byDuan X, Qu M, Wang J, Trevathan J, Vrtiska T, Williams J, Krambeck A, Lieske J and McCollough C (2018) Differentiation of Calcium Oxalate Monohydrate and Calcium Oxalate Dihydrate Stones Using Quantitative Morphological Information from Micro-Computerized and Clinical Computerized TomographyJournal of Urology, VOL. 189, NO. 6, (2350-2356), Online publication date: 1-Jun-2013.Assimos D (2018) Re: Determination of Renal Stone Composition in Phantom and Patients Using Single-Source Dual-Energy Computed TomographyJournal of Urology, VOL. 190, NO. 2, (570-570), Online publication date: 1-Aug-2013.Preminger G, Tiselius H, Assimos D, Alken P, Buck C, Gallucci M, Knoll T, Lingeman J, Nakada S, Pearle M, Sarica K, Türk C and Wolf J (2018) 2007 Guideline for the Management of Ureteral CalculiJournal of Urology, VOL. 178, NO. 6, (2418-2434), Online publication date: 1-Dec-2007. Volume 174Issue 4 Part 1October 2005Page: 1468-1471 Advertisement Copyright & Permissions© 2005 by American Urological Association, Inc.Keywordskidneykidney calculicystinetomography, x-ray computedMetricsAuthor Information SAMUEL C. KIM More articles by this author ERIN K. HATT More articles by this author JAMES E. LINGEMAN More articles by this author ROBERT B. NADLER More articles by this author JAMES A. McATEER More articles by this author JAMES C. WILLIAMS More articles by this author Expand All Advertisement PDF downloadLoading ...
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