Luis Alberto Medina

Mr. Luis Alberto Medina

LSDTC, Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas, Mexico City, Ciudad de México, Mexico
orcid
Bachelor's degree on Bionics

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 November 2023 in Diagnostics
Verified
Journal Article
Open access
PDF file
Rafael Bayareh-MancillaRafael Bayareh-Mancilla
Rafael Bayareh-Mancilla
Luis Alberto MedinaLuis Alberto Medina
Luis Alberto Medina
ATAlfonso Toriz-Vázquez
Alfonso Toriz-Vázquez
YRYazmin Mariela Hernández Rodríguez
Yazmin Mariela Hernández Rodríguez
OCOscar E. Cigarroa-Mayorga
Oscar E. Cigarroa-Mayorga
Breast cancer is a significant health concern for women, emphasizing the need for early detection. This research focuses on developing a computer system for asymmetry detection in mammographic images, employing two critical approaches: Dynamic Time Warping (DTW) for shape analysis and the Growing Seed Region (GSR) method for breast skin segmentation. The methodology involves processing mammograms in DICOM format. In the morphological study, a centroid-based mask is computed using extracted images from DICOM files. Distances between the centroid and the breast perimeter are then calculated to assess similarity through Dynamic Time Warping analysis. For skin thickness asymmetry identification, a seed is initially set on skin pixels and expanded based on intensity and depth similarities. The DTW analysis achieves an accuracy of 83%, correctly identifying 23 possible asymmetry cases out of 20 ground truth cases. The GRS method is validated using Average Symmetric Surface Distance and Relative Volumetric metrics, yielding similarities of 90.47% and 66.66%, respectively, for asymmetry cases compared to 182 ground truth segmented images, successfully identifying 35 patients with potential skin asymmetry. Additionally, a Graphical User Interface is designed to facilitate the insertion of DICOM files and provide visual representations of asymmetrical findings for validation and accessibility by physicians.