Methods and apparatus for measuring tissue section thickness

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364496, 364555, 36441308, 3644131, 382133, G01N 102

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055463231

ABSTRACT:
An apparatus and method for measuring the thickness of a tissue section with an automated image analysis system, preferably using polyploid nuclear DNA content, for subsequent use in analyzing cell objects of a specimen cell sample for the diagnosis and treatment of actual or suspected cancer or monitoring any variation in the nominal thickness in a microtome setting. An image of a measurement material, such as a rat liver tissue section, having known cell object attributes is first digitized and the morphological attributes, including area and DNA mass of the cell objects, are automatically measured from the digitized image. The measured attributes are compared to ranges of attribute values which are preestablished to select particular cell objects. After the selection of the cell objects, the operator may review the automatically selected cell objects and accept or change the measured cell object attribute values. In a preferred embodiment, each selected cell object is assigned to one of three classes corresponding to diploid, tetraploid and octoploid cell morphology and the measured DNA mass of the identified cell object fragments in the rat liver tissue section sample may be corrected. Next, the selected cell objects of the measurement material, e.g., DNA Mass, are then graphically displayed in a histogram and the thickness of the rat liver tissue section can be measured based upon the distribution.

REFERENCES:
patent: 3833796 (1974-09-01), Fetner et al.
patent: 4097845 (1978-06-01), Bacus
patent: 4125828 (1978-11-01), Resnick et al.
patent: 4199748 (1980-04-01), Bacus
patent: 4404683 (1983-09-01), Kobayashi et al.
patent: 4523278 (1985-06-01), Reinhardt et al.
patent: 4656594 (1987-04-01), Ledley
patent: 4661913 (1987-04-01), Wu et al.
patent: 4741043 (1988-04-01), Bacus
patent: 4833629 (1989-05-01), Moore
patent: 4987539 (1991-01-01), Moore et al.
patent: 5018209 (1991-05-01), Bacus
patent: 5023785 (1991-06-01), Adrion et al.
patent: 5072382 (1991-12-01), Kamentsky
patent: 5086476 (1992-02-01), Bacus
patent: 5088816 (1992-02-01), Tomioha et al.
patent: 5109429 (1992-04-01), Bacus et al.
patent: 5121320 (1992-06-01), Aohi et al.
patent: 5235522 (1993-08-01), Bacus
patent: 5281517 (1994-01-01), Bacus et al.
"An Analysis Of DNA Cytophotometry on Tissue Sections In A Rat Liver Model" R. W. McCready, B.Sc.; J. M. Papadimitriou, M. D., Ph.D. Analytical and Quantitative Cytology, vol. 5, No. 2, Jun. 1983.
"Measuring The Forces Acting During Microtomy By The Use Of Load Cells" Journal of Microscopy, vol. 159, pt. 2 Aug. 1990, pp. 203-210.
Bacus, James W.: Methods in Pathology-A Method of Correcting DNA Ploidy Measurements in Tissue Sections. Mod Pathol 7:652,1994.
Danque POV, Chen HB, Patil J, Jagirdar J, Orsatti G, Paronetto F: Image analysis versus flow cytometry for DNA ploidy quantitation of solid tumores: a comparison of six methods of sample preparation. Mod Pathol 6:270,1993.
Suit PF, Bauer TW: DNA quantitation by image cytometry of touch preparatinos from fresh and frozen tissue. Am J Clin Pthol 94:49,1990.
Greene DR, Taylor SR, Wheeler TM, Scardino PT: DNA ploidy by image analysis of individual foci of prostate cancer: a preliminary report. Cancer Res 51:4084,1991.
Weiber ER: Steological Methods, vol. 1, p. 40; vol. 2, p. 175. New York,Academic Press,1980.
McCready RW, Papadimitriou JM: An analysis of DNA cystophotometry on tissue sections in a rat liver model. Anal Quant Cytol Histol 5:117,1983.
Gurley AM, Hidvegi DF,Bacus JW, Bacus SS: Comparison of the Papanicolaou and Feulgen staining methods for DNA quantification by image analysis. Cytometry 11:468,1990.
Bacus JV: The CAS200.TM. Multiscan.TM. automated pawthology workstation.In The Compendium on the Computerized Cytology and Histology Laboratory, edited by Wied GL, Bartels PH, Rosenthal DL, Schenk U, p. 360. Chicago, Tutorials of Cytology, 1994.
Cell Analysis Systems: CAS Quantitative DNA Analysis, Users Guide Version 3.0. Elmhurst, Il, Cell Analysis Systems,Inc.,1993.
Bacus JW, Grace LJ: Optical microscope system for standardized cell measurements and analyses. Appl Optics 26:3280,1987.
Mikel UV: Absolute DNA values from Feulgen microspectrophotometric measurements and quantitative electron microscopy. Anal Quant Cytol Histol 9:13,1987.
Allison RT, Vincent JF: Measuring the forces acting during microtomy by the use of load cells. J Microsc 159:203,1990.

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