Zobrazeno 1 - 10
of 24
pro vyhledávání: '"77"'
Autor:
Percival O. Buenaventura, Peter F. Ferson, James D. Luketich, Neil A. Christie, Virginia R. Litle, Hiran C. Fernando
Publikováno v:
SPIE Proceedings.
We have performed 800 photodynamic therapy (PDT) treatments in over 300 patients at the University of Pittsburgh since 1996. Over 150 patients have undergone PDT for palliation of dysphagia for esophageal cancer. Of the first 77 dysphagia improved in
Publikováno v:
Biomedical Spectroscopy, Microscopy, and Imaging.
The change of corneal shape in keratoconus subjects can impact the optical quality of the eye on the retina and it reduces the contrast sensitivity by light scattering. The aim of our study was to estimate the keratoconus subjects’ contrast sensiti
Publikováno v:
Medical Imaging 2020: Physics of Medical Imaging.
Contrast sensitivity decreases in keratoconus subjects even before the decrease is presented at high contrast visual acuity. The aim of our study was to estimate the subject’s contrast sensitivity and visual acuity in different keratoconus stages.
Publikováno v:
17th International Photodynamic Association World Congress.
Topical 5-aminolevulinic acid-mediated photodynamic therapy is an established approach for the treatment of basal cell carcinoma. The study with 5- aminolevulinic acid drug Levulon was conducted in patients with superficial skin basal cell carcinoma.
Publikováno v:
14th International Symposium on Medical Information Processing and Analysis.
The non-small cell lung cancer (NSCLC) is the most frequent with about 80% of new cases and it is subdivided into adenocarcinoma, squamous cell and large cell carcinomas. Several studies have demonstrated the relevance of identifying NSCLC cancer sub
Publikováno v:
Medical Imaging 2018: Imaging Informatics for Healthcare, Research, and Applications.
Breast cancer is a highly heterogeneous disease both biologically and clinically, and certain pathologic parameters, i.e., Ki67 expression, are useful in predicting the prognosis of patients. The aim of the study is to identify intratumor heterogenei
Autor:
Jun Wei, Aamer Chughtai, Ella A. Kazerooni, Lubomir M. Hadjiiski, Hongliu Sun, Chuan Zhou, Heang Ping Chan
Publikováno v:
Medical Imaging: Computer-Aided Diagnosis
We are developing automated radiopathomics method for diagnosis of lung nodule subtypes. In this study, we investigated the feasibility of using quantitative methods to analyze the tumor nuclei and cytoplasm in pathologic wholeslide images for the cl
Publikováno v:
Medical Imaging 2017: Imaging Informatics for Healthcare, Research, and Applications.
Convolutional neural networks (CNNs) are the state-of-the-art deep learning network architectures that can be used in a range of applications, including computer vision and medical image analysis. It exhibits a powerful representation learning mechan
Autor:
Robert J. Gillies, Lawrence O. Hall, Dmitry B. Goldgof, Yoganand Balagurunathan, Samuel H. Hawkins, Benjamin Geiger, Robert A. Gatenby
Publikováno v:
Medical Imaging: Computer-Aided Diagnosis
Pulmonary nodules are effectively diagnosed in CT scans, but determining their malignancy has been a challenge. The rate of change of the volume of a pulmonary nodule is known to be a prognostic factor for cancer development. In this study, we propos
Autor:
Yan Zhou, Xinguang Yu, Yong He, Leana Wang, Peng Wang, Cheng-hui Liu, Cheng Shu, Gangge Cheng, Robert R. Alfano
Publikováno v:
SPIE Proceedings.
In this report, optical biopsy was applied to diagnose human brain cancer in vitro for the identification of brain cancer from normal tissues by native fluorescence and Stokes shift spectra (SSS). 77 brain specimens including three types of human bra