Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Stephen F. Levinson"'
Publikováno v:
Ultrasound in Medicine & Biology. 24:427-441
A multilevel motion model-based approach to ultrasonic speckle tracking has been developed that addresses the inherent trade-offs associated with traditional single-level block matching (SLBM) methods. The multilevel block matching (MLBM) algorithm u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8df78ae22fd1a2b5650a0405ec16c6e6
https://doi.org/10.1016/s0301-5629(97)00281-0
https://doi.org/10.1016/s0301-5629(97)00281-0
Publikováno v:
Ultrasound in Medicine & Biology. 22:959-977
Recently, a number of methods have been developed that make it possible to image the elastic properties of soft tissues. Because certain types of tissues such as malignant lesions, for example, have elastic properties that are markedly different from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e7a18fe4c9fe3941f013c614ad3d8dd
https://doi.org/10.1016/s0301-5629(96)00120-2
https://doi.org/10.1016/s0301-5629(96)00120-2
Publikováno v:
IEEE Engineering in Medicine and Biology Magazine. 15:52-59
In this article the authors review imaging techniques for assessing the elastic properties of tissue. They briefly look at the fundamental techniques in the above-mentioned fields and then present elastography techniques developed by current research
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b77ef032a7323d788e1c8a46cae3a70c
https://doi.org/10.1109/51.544512
https://doi.org/10.1109/51.544512
Autor:
Paul O'Connell, Stephen F. Levinson
Publikováno v:
Stimulus. 12:250-261
Met de verspreiding van infectie met het hiv (human immunodeficiency virus) en aids (acquired immune deficiency syndrome) worden veel mensen in de revalidatie beroepsmatig geconfronteerd met nieuwe problemen. Dit verslag gaat over twee fundamentele p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb92e5707dc4dd2628f4a332080f0653
https://doi.org/10.1007/bf03062420
https://doi.org/10.1007/bf03062420
Autor:
Stephen F. Levinson
Publikováno v:
Ultrasonic Imaging. 12:292-308
The scanning laser acoustic microscope provides a relatively simple means by which speed of sound data can be collected from biological specimens. By employing a phase detection circuit, phase-contour lines can be superimposed on acoustic micrographs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae4c47fe1a4686b28c08f300b8e906bf
https://doi.org/10.1016/0161-7346(90)90004-h
https://doi.org/10.1016/0161-7346(90)90004-h
Publikováno v:
Physics in medicine and biology. 45(6)
A novel iterative approach is presented to estimate Young's modulus in homogeneous soft tissues using vibration sonoelastography. A low-frequency (below 100 Hz) external vibration is applied and three or more consecutive frames of B-scan image data a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe5a1734f75f3e53954fe439b1d43363
https://pubmed.ncbi.nlm.nih.gov/10870706
https://pubmed.ncbi.nlm.nih.gov/10870706
Publikováno v:
Ultrasound in medicinebiology. 24(9)
Vibration sonoelastography has been developed for the detection of hard lesions in relatively soft tissue. The basic concept is to propagate low-amplitude and low-frequency shear waves (with displacements below 0.1 mm and frequencies typically below
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::425bb1415fc7f015d529a0bb6d5c7b09
https://pubmed.ncbi.nlm.nih.gov/10385965
https://pubmed.ncbi.nlm.nih.gov/10385965
Publikováno v:
IEEE transactions on medical imaging. 17(6)
By exploiting the correlation of ultrasound speckle patterns that result from scattering by underlying tissue elements, two-dimensional tissue motion theoretically can be recovered by tracking the apparent movement of the associated speckle patterns.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d90f2400a2e398d13c200dcdd8bfd60
https://pubmed.ncbi.nlm.nih.gov/10048851
https://pubmed.ncbi.nlm.nih.gov/10048851
Publikováno v:
Medical Imaging: Image Processing
By exploiting the correlation of ultrasound speckle patterns that result from scattering by underlying tissue elements, 2D tissue motion can be theoretically recovered by tracking the apparent movement of the speckle patterns. Speckle tracking, howev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b26172c42004bd4ce555bc2b4468d83e
https://doi.org/10.1117/12.310961
https://doi.org/10.1117/12.310961
Publikováno v:
Archives of physical medicine and rehabilitation. 77
Since 1981, the epidemic of acquired immunodeficiency syndrome (AIDS), due to infection with human immunodeficiency virus (HIV), has grown and challenged health care providers in the United States. Although the total number of AIDS cases diagnosed ea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::834cf7e62d210f10bf8c0242c5aaf973
https://pubmed.ncbi.nlm.nih.gov/8599547
https://pubmed.ncbi.nlm.nih.gov/8599547