Browsing by Author "Guzman-Cabrera, Rafael"

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Citation - WoS: 9
Citation - Scopus: 10
Digital Processing of Thermographic Images for Medical Applications
(Chiminform Data S A, 2016) Guzman-Cabrera, Rafael; Baleanu, Dumitru; Guzman-Sepulveda, Jose Rafael; Gonzalez Parada, Adrian; Rosales Garcia, Juan; Torres Cisneros, Miguel; Baleanu, Dumitru; Matematik
Breast cancer is the second leading cause of death in women worldwide with an average probability for a woman to develop breast cancer in her life of about 12%. Among the large variety of medical assessment techniques, thermography has attracted attention in applications related to detection and diagnosis due to its capability to provide valuable information on the physiological variations typical of early stages in cancer development thus making possible to diagnose patients in early stages so more thorough examinations can be done in proper time and manner. This paper presents a digital processing approach that allows identification and subsequent isolation of the region of interest in thermograms based texture analysis of the image. This algorithm was tested on case studies thermograms exhibiting different types of cancer and the results showed successful identification and extraction of the region of interest in all cases. Results are presented with different types of cancer in men and women and different image angles showing the robustness of the proposed method.
Electro-Acoustic Device for Hip Dysplasia Assessment
(Chiminform Data SA, 2016) Perez Oliva, Huetzin; Cordova Fraga, Teodoro; Padilla Raygoza, Nicolas; Francisco, Jose; Gomez Aguilar,; Baleanu, Dumitru; Sosa, Modesto; Bernal, Jesus; Guzman-Cabrera, Rafael
A device for making diagnosis of dysplasia at the development fracture in newborns, assessment of osteoporosis and injuries of the skeletal system is presented. Its functioning is based on generation of acoustic resonance by sound transmitted through the bone under study. The device operates with a transmitter and an acoustic receiver coupled to the surface, just above the bone area under study. The measurements at the femoral bone in newborns indicate that the dominant frequency is around 160 Hz, which is consistent with other studies. Data comparisons with ultrasound technique suggest that this device could be an alternative for both dysplasia's studies of the hipbone and estimations of bone density.