The advantage of a thin flexible ureteroscope with a new real-time processing system

Y. Daidoh, A. Tsuji, K. Odajima, F. Nakajima, M. Hayakawa, M. Murai, H. Nakamura, Tsunenori Arai, M. Kikuchi

Research output: Contribution to journalArticle

Abstract

To observe the upper urinary tract more clearly with a thin flexible endoscope, we developed a novel real-time processing system. This system enhances the parts of the dark cladding around the core by individual strong brightness of each image fiber. The upper urinary tract in eight patients was examined using a thin flexible endoscope with this system at retrograde pyelography or at urological operation. Six patients had hydronephrosis and 2 had filling defects in the renal pelvis or calyx. The endoscope was 0.75 mm in diameter and had 3000 pixels of image fiber. The objective portion could be assessed successfully in seven of eight. Significantly finer and colorful image could be obtained with this system compared with the conventional method and the epithelium could be clearly observed. We conclude that this real-time processing system remarkably improves the quality of image obtained with the thin flexible ureteroscope and makes it a more promising modality in the diagnosis and treatment of the upper urinary tract.

Original languageEnglish
Pages (from-to)1150-1155
Number of pages6
JournalJapanese Journal of Urology
Volume86
Issue number6
Publication statusPublished - 1995
Externally publishedYes

Fingerprint

Ureteroscopes
Endoscopes
Computer Systems
Urinary Tract
Kidney Pelvis
Hydronephrosis
Urography
Epithelium
Therapeutics

Keywords

  • real-time processing system
  • thin flexible endoscope
  • ureteroscopy

ASJC Scopus subject areas

  • Urology

Cite this

Daidoh, Y., Tsuji, A., Odajima, K., Nakajima, F., Hayakawa, M., Murai, M., ... Kikuchi, M. (1995). The advantage of a thin flexible ureteroscope with a new real-time processing system. Japanese Journal of Urology, 86(6), 1150-1155.

The advantage of a thin flexible ureteroscope with a new real-time processing system. / Daidoh, Y.; Tsuji, A.; Odajima, K.; Nakajima, F.; Hayakawa, M.; Murai, M.; Nakamura, H.; Arai, Tsunenori; Kikuchi, M.

In: Japanese Journal of Urology, Vol. 86, No. 6, 1995, p. 1150-1155.

Research output: Contribution to journalArticle

Daidoh, Y, Tsuji, A, Odajima, K, Nakajima, F, Hayakawa, M, Murai, M, Nakamura, H, Arai, T & Kikuchi, M 1995, 'The advantage of a thin flexible ureteroscope with a new real-time processing system', Japanese Journal of Urology, vol. 86, no. 6, pp. 1150-1155.
Daidoh Y, Tsuji A, Odajima K, Nakajima F, Hayakawa M, Murai M et al. The advantage of a thin flexible ureteroscope with a new real-time processing system. Japanese Journal of Urology. 1995;86(6):1150-1155.
Daidoh, Y. ; Tsuji, A. ; Odajima, K. ; Nakajima, F. ; Hayakawa, M. ; Murai, M. ; Nakamura, H. ; Arai, Tsunenori ; Kikuchi, M. / The advantage of a thin flexible ureteroscope with a new real-time processing system. In: Japanese Journal of Urology. 1995 ; Vol. 86, No. 6. pp. 1150-1155.
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