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ICPR 2012 Contest: Mitosis Detection in Breast Cancer Histological Images

27 Septembre 2011


Catégorie : Conférence internationale


IPAL laboratory is glad to announce the launching of an international contest about histopathological image analysis. Data availability with ground truth: 01/10/2011 onwards.

Mitosis detection contest meeting will take place in Tsukuba, Japan, on November 11th, 2012. 

More information at http://ipal.cnrs.fr/ICPR2012/ 

Nottingham Grading System is an international grading system for breast cancer recommended by the World Health Organization. It is derived from the assessment of three morphological features: tubule formation, nuclear pleomorphism and mitotic count. Several studies on automatic tools to process digitized slides have been reported focusing mainly on nuclei or tubule detection. Mitosis detection is a challenging problem and has not been addressed well in the literature.

Mitotic count is an important parameter in breast cancer grading as it gives an evaluation of the agressivity of the tumour. Detection of mitosis is a very challenging task since mitosis are small objects with a large variety of shape configurations. The four main phases of a mitosis are prophase, metaphase, anaphase and telophase. The shape of the nucleus is very different depending on the phase of the mitosis. On its last stage, the telophase, a mitosis has two distinct nuclei, but they are not yet full individual cells. A mitosis in telophase must be counted as a single mitosis, it should not be miscounted as two mitosis. Artefacts are also common and should not be confused with mitosis. 

The objective of the contest is to detect mitosis on H&E stained histological images of different breast cancers.