Polarizing microscopy: A reliable and cost effective method for analysis of urinary calculi

A. D. Bhandarkar, G. G L Prabhu, A. Pandit, D. Ramesh, K. S. Ramgopal, P. Venugopal

Research output: Contribution to journalArticle

Abstract

400 calculi from 400 patients between the age group of 3-86 years were analysed by polarizing microscopy. Whewellite was found in 302 calculi. Apatite, weddelite and struvite were found in 124, 120 and 51 calculi respectively. Amongst monomineral calculi, whewellite was the most commonly found component. Whewellite was seen in its compact form in 68 calculi. In 79 calculi, it was found in its microcrystalline form. Amongst mixed calculi, whewellite + weddelite was found in 52, whewellite + apatite in 36; while whewellite + apatite + struvite was present in 31 calculi. Almost all commonly occurring components of urinary calculi were easily identified by this method of calculus analysis. The nucleus as well as peripheral layers could be studied simultaneously by thin section polarizing microscopy, rendering it an ideal method to study the structure of urinary calculi. Polarizing microscopy is not only accurate and cost effective but also is rapid and easily standardizable, thus making it one of the most useful methods of urinary calculus analysis. Minute details resolved by other methods like X-ray diffraction, Infrared Spectroscopy etc. are of little clinical value.

Original languageEnglish
Pages (from-to)53-59
Number of pages7
JournalIndian Journal of Urology
Volume10
Issue number2
Publication statusPublished - 01-01-1994
Externally publishedYes

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Urinary Calculi
Calculi
Microscopy
Costs and Cost Analysis
Apatites
X-Ray Diffraction
whewellite
Spectrum Analysis
Age Groups

All Science Journal Classification (ASJC) codes

  • Urology

Cite this

Bhandarkar, A. D., Prabhu, G. G. L., Pandit, A., Ramesh, D., Ramgopal, K. S., & Venugopal, P. (1994). Polarizing microscopy: A reliable and cost effective method for analysis of urinary calculi. Indian Journal of Urology, 10(2), 53-59.
Bhandarkar, A. D. ; Prabhu, G. G L ; Pandit, A. ; Ramesh, D. ; Ramgopal, K. S. ; Venugopal, P. / Polarizing microscopy : A reliable and cost effective method for analysis of urinary calculi. In: Indian Journal of Urology. 1994 ; Vol. 10, No. 2. pp. 53-59.
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Bhandarkar, AD, Prabhu, GGL, Pandit, A, Ramesh, D, Ramgopal, KS & Venugopal, P 1994, 'Polarizing microscopy: A reliable and cost effective method for analysis of urinary calculi', Indian Journal of Urology, vol. 10, no. 2, pp. 53-59.

Polarizing microscopy : A reliable and cost effective method for analysis of urinary calculi. / Bhandarkar, A. D.; Prabhu, G. G L; Pandit, A.; Ramesh, D.; Ramgopal, K. S.; Venugopal, P.

In: Indian Journal of Urology, Vol. 10, No. 2, 01.01.1994, p. 53-59.

Research output: Contribution to journalArticle

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Bhandarkar AD, Prabhu GGL, Pandit A, Ramesh D, Ramgopal KS, Venugopal P. Polarizing microscopy: A reliable and cost effective method for analysis of urinary calculi. Indian Journal of Urology. 1994 Jan 1;10(2):53-59.