A5101809187- Advanced Radiotherapy Techniques
- Ultrasound and Hyperthermia Applications
- Breast Cancer Treatment Studies
- Prostate Cancer Diagnosis and Treatment
- Endometrial and Cervical Cancer Treatments
- Face and Expression Recognition
- Biometric Identification and Security
- Medical Imaging Techniques and Applications
- Face recognition and analysis
- Prostate Cancer Treatment and Research
- Radiomics and Machine Learning in Medical Imaging
- Cervical Cancer and HPV Research
- EEG and Brain-Computer Interfaces
- Neural Networks and Applications
- Radiation Therapy and Dosimetry
- Advances in Oncology and Radiotherapy
- Tactile and Sensory Interactions
- Radiation Dose and Imaging
- Breast Lesions and Carcinomas
- Lung Cancer Diagnosis and Treatment
- Head and Neck Cancer Studies
- Lymphoma Diagnosis and Treatment
- Colorectal and Anal Carcinomas
- Visual perception and processing mechanisms
- Virus-based gene therapy research
University of Chile
2016-2025
The Ohio State University
1989-2025
Universidad de Santiago de Chile
2024
Washington University in St. Louis
2002-2022
ORCID
2022
University of Talca
2018
Mallinckrodt (United States)
2004-2017
Universidad Nacional Autónoma de México
2013
Yahoo (United States)
2013
University of Concepción
2013
A filter method of feature selection based on mutual information, called normalized information (NMIFS), is presented. NMIFS an enhancement over Battiti's MIFS, MIFS-U, and mRMR methods. The average proposed as a measure redundancy among features. outperformed several artificial benchmark data sets without requiring user-defined parameter. In addition, combined with genetic algorithm to form hybrid filter/wrapper GAMIFS. This includes initialization procedure mutation operator speed up the...
A total of 304 patients with limited small-cell carcinoma the lung were treated a combination cyclophosphamide, Adriamycin (Adria Laboratories, Columbus, Ohio), and vincristine (CAV) elective brain irradiation (3,600 rad TD in 14 fractions). The randomized to either receive or not thoracic (4,000 TD, split course). Of patients, 291 eligible for study. Two hundred eighteen (75%) completely evaluable. In each group, 81% had Karnofsky index 80% higher 14% supraclavicular scalene lymph nodes....
Verrucous carcinoma of the oral cavity has been established as a distinctive clinical and pathologic entity (1, 2, 11, 15). Typically, lesion appears slow-growing warty mass on gingival or buccal mucosa an elderly patient. Histologically, it is characterized by well differentiated pattern squamous epithelium in abundant papillomatous hyperkeratotic folds. The tumor slowly invades deeper structures, including bone, but rarely metastasizes 7, A predilection for tobacco chewers noted (1,2, 11),...
Of 210 patients who received definitive therapy for a node in the neck which no primary cancer was found, 48% survived 3 years free of cancer. A surgical procedure or radiation equally effective controlling disease nodes clinically staged more favorable categories. More advanced is best treated by delivering 5,000 rads to entire neck, pharynx, and at times larynx, followed partial radical dissection. The dose delivered contralateral side prevents subsequent appearance nodes, almost...
A total of 307 patients with superficial measurable tumors were registered on a Radiation Therapy Oncology Group (RTOG) protocol involving fractionated radiation therapy, either alone or followed immediately by hyperthermia (42.5 degrees C, 45-60 min). Overall complete response (CR) was observed in 30% the lesions treated radiotherapy (RT) and 32% those receiving RT heat. Response found to be significantly related both maximum tumor diameter (less than 3 greater equal cm) site/histology...
In this paper, we report our extension of the use feature selection based on mutual information and fusion to improve gender classification face images. We compare results fusing three groups features, spatial scales, four different measures select features. also showed improved by LBP features with radii using information. As minimum redundancy maximal relevance (mRMR), normalized (NMIFS), conditional (CMIFS), maximization (CMIM). tested databases: FERET UND, under controlled conditions,...
Previous researchers have explored various approaches for predicting the gender of a person based on features iris texture. This paper is first to predict directly from same binary code that could be used recognition. We found information prediction distributed across iris, rather than localized in particular concentric bands. also using selected representing subset region achieves better accuracy whole region. measures mutual guide selection bits use as prediction. Using this approach, with...
Purpose: The objectives of this randomized trial were to determine if interstitial thermoradlotherapy (ITRT) improves tumor regression/control in accessible lesions comparison with radiotherapy (IRT) alone and assess the skin soft tissue complications either modality.Methods Materials:From January 1986 June 1992,184 patients persistent or recurrent tumors after previous and/or surgery, which amenable interstltlal radiotherapy, accessioned a protocol developed by Radiation Therapy Oncology...