Zobrazeno 1 - 10
of 148
pro vyhledávání: '"Frederic L. Lizzi"'
Autor:
Frederic L. Lizzi, Ernest J. Feleppa
Publikováno v:
Ultrasonic Scattering in Biological Tissues ISBN: 9780203734797
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0962ad35aeb9a222064f091c61bc2854
https://doi.org/10.4324/9780203734797-12
https://doi.org/10.4324/9780203734797-12
Publikováno v:
Medical Physics. 34:1037-1046
A theoretical model is described for application in ultrasonic tissue characterization using a calibrated 2-D spectrum analysis method. This model relates 2-D spectra computed from ultrasonic backscatter signals to intrinsic physical properties of ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9015654f31d6d4d0255fcdf357f3247e
https://doi.org/10.1118/1.2436978
https://doi.org/10.1118/1.2436978
Autor:
Robert Muratore, Kenichi Sugioka, Frederic L. Lizzi, Kana Fujikura, David J. Engel, Ryo Otsuka, Shunichi Homma, Kumiko Hirata, Charles Marboe
Publikováno v:
Journal of the American Society of Echocardiography. 19:932-937
The potential therapeutic uses of ultrasound energy in cardiac disease have not been extensively studied. We have developed a means to deliver high-intensity focused ultrasound (HIFU) to myocardial tissue. Unlike other therapy modalities such as radi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91eb060123bf679fdc75c9b7883c4f88
https://doi.org/10.1016/j.echo.2006.02.012
https://doi.org/10.1016/j.echo.2006.02.012
Autor:
Charles Marboe, Kumiko Hirata, Robert Muratore, Daniel Burkhoff, Todd Pulerwitz, Jie Wang, Shunichi Homma, Ryo Otsuka, Kana Fujikura, Yukiko Oe, Takeki Suzuki, Robert R. Sciacca, Frederic L. Lizzi
Publikováno v:
Ultrasound in Medicine & Biology. 31:109-114
The purpose of this study was to evaluate the possibility of using high-intensity focused ultrasound (US), or HIFU, to create lesions in cardiac valves in vitro. Calf mitral valves and aortic valves were examined. Focused US energy was applied with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fc7cc862ac3ad8290e73b36083b24c9
https://doi.org/10.1016/j.ultrasmedbio.2004.09.009
https://doi.org/10.1016/j.ultrasmedbio.2004.09.009
Autor:
Frederic L. Lizzi, D. Jackson Coleman
Publikováno v:
Journal of Ultrasound in Medicine. 23:1255-1266
We acknowledge the important contributions of our many colleagues and coworkers who have helped advance ophthalmic ultrasound over the last 4 decades. We also acknowledge more than 30 years of continuous support of our research by the National Eye In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::418b057f70097ffe2641495d9aef5d19
https://doi.org/10.7863/jum.2004.23.10.1255
https://doi.org/10.7863/jum.2004.23.10.1255
Publikováno v:
Medical Physics. 31:1032-1039
We are investigating the utility of a new ultrasonic tissue characterization technique, specifically two-dimensional (2-D) spectrum analysis of radio-frequency backscatter signals, which promises to provide quantitative measures of the physical prope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d84d52d4dae86464fb4c75e0a14e2f7
https://doi.org/10.1118/1.1690196
https://doi.org/10.1118/1.1690196
Autor:
Thomas A. Weingeist, Robert Folberg, Frederic L. Lizzi, Mark J. Rondeau, H. Culver Boldt, Xue Chen, Ronald H. Silverman, D. Jackson Coleman, Sumalee Vangveeravong, Harriet O. Lloyd
Publikováno v:
Ophthalmology. 111:558-564
Purpose Primary malignant melanoma of the choroid and ciliary body has traditionally been treated without histologic staging, using purely clinical indicators. The presence of extravascular matrix patterns (EMP) in histologic sections of uveal melano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89b47549016db7c25296aee983724a0f
https://doi.org/10.1016/j.ophtha.2003.06.021
https://doi.org/10.1016/j.ophtha.2003.06.021
Publikováno v:
The Journal of the Acoustical Society of America. 114:48-51
A time-domain method utilizing the spatial impulse response is proposed to compute beam patterns for array transducers where each array element may have a unique continuously periodic (CP) excitation. The method is useful for cases when an efficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::073d40e5db9624dbd93a54e88b00f1cc
https://doi.org/10.1121/1.1580834
https://doi.org/10.1121/1.1580834
Publikováno v:
Pattern Recognition Letters. 24:637-658
Spectrum analysis procedures have been developed to improve upon the diagnostic capabilities afforded by conventional ultrasonic images. These procedures analyze the frequency content of broadband, coherent echo signals returned from the body. They i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c952ecb628a8cb8d7fecb93cf635cee
https://doi.org/10.1016/s0167-8655(02)00172-1
https://doi.org/10.1016/s0167-8655(02)00172-1
Autor:
D. Jackson Coleman, Mark J. Rondeau, H. Culver Boldt, Robert Folberg, Mary G. Mehaffey, Frederic L. Lizzi, Harriet O. Lloyd, Ronald H. Silverman
Publikováno v:
Ultrasound in Medicine & Biology. 23:573-581
Previous studies demonstrated a correlation between acoustic backscatter parameters and survival in ocular melanoma. The histologic presence of microvascular networks in ocular melanoma is also associated with death from metastases. This study tests
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23dbe50a6a3a761767ee543640fa93b9
https://doi.org/10.1016/s0301-5629(97)00037-9
https://doi.org/10.1016/s0301-5629(97)00037-9