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Related Concept Videos

DNA Microarrays02:34

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
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FISH - Fluorescent In-situ Hybridization

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Geometric Mean01:15

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Related Experiment Video

Updated: May 21, 2026

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
13:44

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Published on: August 30, 2013

Microarray core detection by geometric restoration.

Jimmy C Azar1, Christer Busch, Ingrid B Carlbom

  • 1Centre for Image Analysis, Uppsala University, Uppsala, Sweden. jimmy.azar@cb.uu.se

Analytical Cellular Pathology (Amsterdam)
|June 12, 2012
PubMed
Summary

This study introduces an automated method for detecting tissue cores in whole-slide images. The technique accurately locates tissue cores for high-throughput analysis in histopathology, improving cancer diagnosis.

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Area of Science:

  • Digital Pathology
  • Computational Histopathology
  • Medical Image Analysis

Background:

  • Whole-slide imaging of tissue microarrays (TMAs) enables large-scale histopathological sample analysis.
  • Automated image processing is crucial for high-throughput analysis in cancer diagnosis.

Purpose of the Study:

  • To present a fully automated method for accurate detection and localization of tissue cores in TMAs.
  • To develop an efficient algorithm for high-throughput analysis of histopathological images.

Main Methods:

  • A novel method based on geometric restoration of core shapes, without assumptions on grid geometry.
  • Utilizes hierarchical clustering and Davies-Bouldin index for core number estimation.
  • Employs morphological granulometry for radius refinement and reconstructs circular discs for localization.

Main Results:

  • The proposed method accurately reconstructs tissue core locations without localization errors.
  • Demonstrates superior efficiency compared to Hough transform-based circle detection methods.
  • Achieves accurate and efficient automated high-throughput analysis of microarray images.

Conclusions:

  • The developed algorithm provides a simple, accurate, and computationally efficient solution for TMA image analysis.
  • Facilitates automated high-throughput histopathological analysis for improved diagnostic capabilities.
  • Advances digital pathology by enabling robust automated detection and localization of tissue cores.