Reducción de ruido en imágenes de mamografía con contraste de fases obtenida mediante haces de sincrotrón.
| dc.contributor.author | Brizuela, Javier David | |
| dc.contributor.author | Ruiz, Yusely | |
| dc.contributor.author | Pérez, Marlen | |
| dc.contributor.department | Centro de Ingeniería Genética y Biotecnología Sancti Spiritus. Departamento de Ingeniería | en_US |
| dc.contributor.department | Universidad Central "Marta Abreu" de Las Villas. Centro de Investigaciones de la Informática | en_US |
| dc.contributor.department | Universidad Central "Marta Abreu" de Las Villas. Departamento de Automática y Sistemas Computacionales | en_US |
| dc.coverage.spatial | Santiago de Cuba, Cuba | en_US |
| dc.date.accessioned | 2024-02-19T15:41:52Z | |
| dc.date.available | 2024-02-19T15:41:52Z | |
| dc.date.issued | 2019-02-10 | |
| dc.description.abstract | Phase contrast (CF) mammography using synchrotron beams has shown quantitatively better results in terms of image contrast and detection of small details with respect to conventional hospital digital techniques. However, this new technique shows higher levels of randomnoise than common digital techniques due to differences in the detectors and also because the technique does not yet havea post-processing software to reduce noise, as is the case with equipment conventional digital mammography. So the objective of this work was to reduce noise in these images to levels similar to those of hospital equipment.Twenty-three images of mammograms performed on an anthropomorphic phantom, obtained using CF techniques using synchrotron X-radiation, were processed under different acquisition conditions in terms of beam energy and dose. The processing of these images was based on filtering (denoising&unsharp masking). We used classic filtering, bilateral, Wavelet family and filtering for edge enhancement. The signal-to-noise ratio (SNR), the contrast-to-noise ratio (CNR), the image contrast (Cima) and the detail visibility (V), as well as the spatial resolution through of the Modulation Transfer Function (MTF) were estimated in regions of interest on the images filtered with the different techniques and in the unfiltered originals. The performance of the filters was statistically studied, looking for those that favor the best image quality.The increase in SNR image quality indicators was observed without impairing spatial resolution, which demonstrates the superiority in image quality of this innovative technique for the detection of small lesions such as microcalcifications and low contrast masses. | en_US |
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| dc.identifier.other | 3DBio2019 | en_US |
| dc.identifier.uri | https://dspace.uclv.edu.cu/handle/123456789/14219 | |
| dc.language.iso | es | en_US |
| dc.relation.conference | I Conferencia Avances de la Biofísica , Bioingeniería y Bioinformática. 3DBio 2019 | en_US |
| dc.rights.holder | Centro de Biofísica Médica. Universidad de Oriente | en_US |
| dc.subject | mamografía, contraste de fase, filtrado, calidad de imagen | en_US |
| dc.title | Reducción de ruido en imágenes de mamografía con contraste de fases obtenida mediante haces de sincrotrón. | en_US |
| dc.type | Proceedings | en_US |