A New World Revealed

Early Experience With Digital Ureteroscopy

Mitchell R. Humphreys, Nicole L. Miller, James Williams, Andrew Evan, Larry C. Munch, James E. Lingeman

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Purpose: The latest digital ureteroscope, the DUR-D (Gyrus ACMI Inc., Southborough, Massachusetts) offers image quality that greatly exceeds current analog image capabilities. The purpose of this report was to document the applicability of this device in studying the earliest stages of stone formation. Materials and Methods: Symptomatic patients with nephrolithiasis (less than 1 cm in diameter) were prospectively enrolled and their renal papilla digitally mapped prior to stone removal. Recovered stones were photographed and analyzed using micro-computerized tomography. If the procedure could not be completed with the DUR-D, a conventional ureteroscope was used. Minors, pregnant patients and those with systemic disorders were excluded. Results: Eight patients (10 renal units), 2 cystine and 6 calcium oxalate stone formers, were studied with a mean age of 50.1 years. Excellent images were collected for all papilla except in 2 cases; a proximal ureteral stricture and acute angulation of the lower pole collecting system, respectively. There were no mechanical device failures. Of the 10 renal units 7 had stents postoperatively and there were no patient complications. Conclusions: The ease of use and high quality images of digital ureterorenoscopy will allow the documentation of the earliest stages of calcium oxalate stone formation and, thereby, advance our understanding of the pathogenesis of calcium oxalate stone formation.

Original languageEnglish
Pages (from-to)970-975
Number of pages6
JournalJournal of Urology
Volume179
Issue number3
DOIs
StatePublished - Mar 2008

Fingerprint

Ureteroscopy
Calcium Oxalate
Ureteroscopes
Kidney
Equipment Failure
Minors
Cystine
Documentation
Stents
Pathologic Constriction
Tomography
Equipment and Supplies

Keywords

  • nephrolithiasis
  • radiographic image enhancement
  • ureteroscopy

ASJC Scopus subject areas

  • Urology

Cite this

A New World Revealed : Early Experience With Digital Ureteroscopy. / Humphreys, Mitchell R.; Miller, Nicole L.; Williams, James; Evan, Andrew; Munch, Larry C.; Lingeman, James E.

In: Journal of Urology, Vol. 179, No. 3, 03.2008, p. 970-975.

Research output: Contribution to journalArticle

Humphreys, Mitchell R. ; Miller, Nicole L. ; Williams, James ; Evan, Andrew ; Munch, Larry C. ; Lingeman, James E. / A New World Revealed : Early Experience With Digital Ureteroscopy. In: Journal of Urology. 2008 ; Vol. 179, No. 3. pp. 970-975.
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