An observation on the analysis of urinary calculi by infrared spectroscopy

Takasaki, Etsuji

doi:10.1007/bf02062610

Cited by 37 publications

(19 citation statements)

References 14 publications

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“…Then the infrared spectra of this pellet were taken from 4,000 nm to 650 nm. By using the spectra of the pellet and previously identified peaks for specific groups, the qualitative compositions of the stones were analyzed [10][11][12].…”

Section: Methodsmentioning

confidence: 99%

Analysis of the Trace Element Contents of Inner Nucleus and Outer Crust Parts of Urinary Calculi

Perk¹,

Serel²,

Koşar³

et al. 2002

Urol Int

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In this study, the lead, cadmium, nickel, and aluminum concentrations were analyzed in inner nucleus and outer crust parts of various kinds of urinary calculi, and the results obtained were statistically compared. Significant differences were found among the element concentrations in the different stone groups. In general, higher element concentrations were found in the nuclei as compared with the crust parts. In addition, some significant intra- and intercorrelations were established among the elements analyzed. The results suggest that some trace elements, including lead, cadmium, nickel, and aluminum, together with other factors may have as yet no clarified functions in the stone precipitation process in the urinary tract.

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Section: Methodsmentioning

confidence: 99%

Analysis of the Trace Element Contents of Inner Nucleus and Outer Crust Parts of Urinary Calculi

Perk¹,

Serel²,

Koşar³

et al. 2002

Urol Int

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“…These patients were admitted to the University of Tokyo Hospital, the University of Tokyo Branch Hospital, Tokyo Metropolitan Komagome General Hospital, or Musashino Red Cross Hospital during an 18-year period (1953)(1954)(1955)(1956)(1957)(1958)(1959)(1960)(1961)(1962)(1963)(1964)(1965)(1966)(1967)(1968)(1969)(1970). Central nuclei of 735 urinary calculi obtained from these 700 patients were analyzed by infrared spectroscopy by KBr pellet method, which has been described in detail previously elsewhere [14,16).…”

Section: Methodsmentioning

confidence: 99%

An Observation on the Composition and Recurrence of Urinary Calculi

Takasaki¹

1975

Urol Int

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Seven hundred patients with 735 urinary calculi were studied for the compositions of calculi by infrared analysis and for stone recurrence. Of these 700 cases, 422 cases were possible to follow up, and 250 cases have had no further stone; 138 cases experienced recurring stones, and 34 cases had multiple stones. The length of follow-up period was 1–19 years averaging 8 years, 8 months. 41.2% of patients with calcium oxalate-calcium phosphate calculi had stones recurrently, and although there was some variation of recurrence rates for patients with various proportions of oxalate to phosphate in the calculi, it was impossible to predict the tendency of recurrence by these proportions. The stone recurrence was noted in 38.6% of patients with magnesium ammonium phosphate calculi, in 38.9% with mixed magnesium ammonium phosphate-calcium oxalate calculi, in 55.6% with uric acid calculi, and in 50% with cystine calculi.

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“…In den letzten 10 Jahren haben sich vornehmlich physikalische Bestimmungsmethoden zur Ermittlung der quantitativen Harn-Steinzusammensetzung durchgesetzt. Dazu zählen die Polarisationsmikroskopie (3)(4)(5)(6)(7)(8)(9)(10)(11), die Differentialthermoanalyse (12)(13)(14), die IR-Spektroskopie (13)(14)(15)(16) und die Röntgenfeinstrükturanalyse (Röntgendiffraktion) (13,14,(17)(18)(19)(20)(21)(22). Die Methode zur röntgendiffraktometrischen Harnsteinanalyse erweist sich aufgrund der im folgenden genannten Vorzüge als besonders vorteilhaft und wurde als Standardmethode für das Arzneimittelbuch (AB 2) der DDR fixiert (23,24).…”

Section: : Einführungunclassified

Brauchbarkeitskriterien der standardisierten röntgendiffraktometrischen Harnsteinanalyse - Qualitätsverbesserung von Harnsteinanalysen durch Schaffung einheitlicher methodischer Voraussetzungen in den Harnsteinanalyse-Laboratorien, 1. Teil.

Rebentisch¹,

Berg²

1983

CCLM

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Zusammenfassung: Durch Schaffung einheitlicher methodischer Voraussetzungen für die in der DDR zentralisierte und standardisierte Harnsteinanalyse mittels Röntgendiffraktion lassen sich eindeutige Verbesserungen in der Qualität der Analysenergebnisse erreichen. Die ermittelten analytischen Brauchbarkeitskriterien Präzision, Nachweisgrenzen und Richtigkeit erfüllen die Forderung der diagnostischen Zuverlässigkeit und garantieren therapeutische Relevanz. Criteris of usefulness for the standardised X-ray diffractometric urolith analysis Improvernent in the quality of urolith analysis by the establishment of uniform methodology in urolith analysis laborätories, Part lSummäiy: Urolith analysis by X-ray diffraction is centralized and standardized in the GDR. By setting up uniform methodological conditions the quality of änalytical results can be markedly improved. The resulting analytical criteria of usefulness -precision, detection limits and correctness -meet the requirements of diagnostic reliäbility and guarantee therapeutic relevance. : EinführungTherapeutische und metaphylaktische Maßnahmen beim Harnsteinleiden können heute nur erfolgreich sein, wenn sie sich auf eine genaue Kenntnis der Zusammensetzung von Harnsteinen gründen. Bei mehr als 60% der Hafiisteinträgfer werden dem Kliniker weder durch Serum-noch durch örinanalysen pathologische Veränderungen der klinischen Hintergrundbilder auffällig (1). Deshalb ist eine exakte Harnsteinanalyse die unabdingbare Voraussetzung für eine gezielte Therapie.

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An observation on the analysis of urinary calculi by infrared spectroscopy

Cited by 37 publications

References 14 publications

Analysis of the Trace Element Contents of Inner Nucleus and Outer Crust Parts of Urinary Calculi

Analysis of the Trace Element Contents of Inner Nucleus and Outer Crust Parts of Urinary Calculi

An Observation on the Composition and Recurrence of Urinary Calculi

Brauchbarkeitskriterien der standardisierten röntgendiffraktometrischen Harnsteinanalyse - Qualitätsverbesserung von Harnsteinanalysen durch Schaffung einheitlicher methodischer Voraussetzungen in den Harnsteinanalyse-Laboratorien, 1. Teil.

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