Data processing of digital recordings of microscopic examination of urinary sediment

Jozsef Lakatos, Tibor Bodor, Zoltan Zidarics, J. Nagy

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The analysis of urine was actually the beginning of laboratory medicine. The important part of the routine urinalysis is the microscopic examination of the urinary sediment [Fogazzi and Cameron, Kidney Int 1996;50(3):1058- 1068; Diamondopoulos, Am J Nephrol 1997;17(3-4):222-227; Fogazzi et al., Clin Chem Lab Med 1998;36(12):919-924]. The microscopic examination of the urine is the least standardised and most time-consuming part of the routine urinalysis, even though it is now known that careful analysis of the sediment components can provide early information concerning the anatomic integrity of the kidney and the existence and extent of recent damage. Our objective was to develop a computerised image processing system and an interactive software package for the backing of clinicians, medical research and medical students. The system consists of: (a) a CCD camera attached to a microscope. (b) Digital processing device. (c) Computer equipped with special video card. (d) Printer. (e) Software. Image analysis begins with a digital capturing of the image as data. The image is detected with 256 gray levels and displayed with a resolution of 512 x 512 pixels. A pixel is an abbreviation for picture elements and represents the dots on a screen. Once the image is acquired in digital format, the data can be manipulated for changes in the display image or for statistical purposes. The digitised microscope images are a very important part of renal diagnosis and of teaching nephrology. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)225-237
Number of pages13
JournalClinica Chimica Acta
Volume297
Issue number1-2
DOIs
Publication statusPublished - Jul 2000

Fingerprint

Microscopic examination
Sediments
Microscopes
Urinalysis
Pixels
Kidney
Software
CCD cameras
Digital signal processing
Software packages
Urine
Image analysis
Medicine
Teaching
Image processing
Nephrology
Display devices
Students
Medical Students
Biomedical Research

Keywords

  • Digitised microscope images
  • Renal diagnosis
  • Urinary sediment

ASJC Scopus subject areas

  • Biochemistry
  • Clinical Biochemistry

Cite this

Data processing of digital recordings of microscopic examination of urinary sediment. / Lakatos, Jozsef; Bodor, Tibor; Zidarics, Zoltan; Nagy, J.

In: Clinica Chimica Acta, Vol. 297, No. 1-2, 07.2000, p. 225-237.

Research output: Contribution to journalArticle

Lakatos, Jozsef ; Bodor, Tibor ; Zidarics, Zoltan ; Nagy, J. / Data processing of digital recordings of microscopic examination of urinary sediment. In: Clinica Chimica Acta. 2000 ; Vol. 297, No. 1-2. pp. 225-237.
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