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EnglishPharmaceutical industries have declared their need of metrology in the cellular field, to improve new drugs developing time and costs by high-content screening technologies. Cell viability and proliferation tests largely use confluency of cells on a bi-dimensional (2D) surface as a biological measurand. The confluency is measured from images of 2D surface acquired via microscopy techniques. The plethora of algorithms already in use aims at recognizing objects from images and identifies a threshold to distinguish objects from the background. The reference method is the visual assessment from an operator and any objective uncertainty estimation is not yet available. A method to estimate the image analysis contribution to confluency uncertainty is here proposed. A maximum and a minimum threshold are identified from a visual assessment of the free edge of the cells. An application to a fluorescence microscopy image of 2D of PT-45 cell cultures is reported. Results shows that the method can be a promising solution to associate an uncertainty to cell confluency measurements to enhance reliability and efficiency of high-content screening technologies.
Uncertainty in cell confluency measurements / Sassi, G.; Pavarelli, S.; Divieto, Carla; SASSI, MARIA PAOLA;. - (2015), pp. 627-632.
| Titolo: | Uncertainty in cell confluency measurements |
| Autori: | |
| Data di pubblicazione: | 2015 |
| Citazione: | Uncertainty in cell confluency measurements / Sassi, G.; Pavarelli, S.; Divieto, Carla; SASSI, MARIA PAOLA;. - (2015), pp. 627-632. |
| Abstract: | Pharmaceutical industries have declared their need of metrology in the cellular field, to improve new drugs developing time and costs by high-content screening technologies. Cell viability and proliferation tests largely use confluency of cells on a bi-dimensional (2D) surface as a biological measurand. The confluency is measured from images of 2D surface acquired via microscopy techniques. The plethora of algorithms already in use aims at recognizing objects from images and identifies a threshold to distinguish objects from the background. The reference method is the visual assessment from an operator and any objective uncertainty estimation is not yet available. A method to estimate the image analysis contribution to confluency uncertainty is here proposed. A maximum and a minimum threshold are identified from a visual assessment of the free edge of the cells. An application to a fluorescence microscopy image of 2D of PT-45 cell cultures is reported. Results shows that the method can be a promising solution to associate an uncertainty to cell confluency measurements to enhance reliability and efficiency of high-content screening technologies. |
| Handle: | http://hdl.handle.net/11696/52604 |
| ISBN: | 978-1-4799-6477-2 978-1-4799-6477-2 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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