Zobrazeno 1 - 6
of 6
pro vyhledávání: '"K S Sampathkumaran"'
Autor:
K J Goldman, Tom R. Miller, Barry A. Siegel, K S Sampathkumaran, B Kumar, Daniel R. Biello, D M Epstein
Publikováno v:
Radiology. 152:795-800
The authors describe a digital filter that greatly enhances the quality of gated cardiac blood-pool images. Spatial filtering is accomplished with a minimum-mean-square-error (Wiener) filter incorporating measured camera blur and Poisson noise statis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d520d4013f2e1f83300b034b65e037ca
https://doi.org/10.1148/radiology.152.3.6611565
https://doi.org/10.1148/radiology.152.3.6611565
Autor:
T R, Miller, K S, Sampathkumaran
Publikováno v:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 23(1)
Digital filtering is a powerful mathematical technique in computer analysis of nuclear medicine studies. The basic concepts of object-domain and frequency-domain filtering are presented in simple, largely nonmathematical terms. Computational methods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::13bbca6ff64514dc58c2c5cc3591f133
https://pubmed.ncbi.nlm.nih.gov/7054454
https://pubmed.ncbi.nlm.nih.gov/7054454
Publikováno v:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 24(7)
Image filtering with the larger, and potentially most valuable, digital filters is very time-consuming, thus precluding use of these filters in routine clinical applications. A recently developed algorithm for spatial-domain filtering is described, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::3b191c4a09b762a715d35fe4e50deaa2
https://pubmed.ncbi.nlm.nih.gov/6864316
https://pubmed.ncbi.nlm.nih.gov/6864316
Publikováno v:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 24(1)
Separation of systolic and diastolic parameters in gated cardiac blood-pool imaging (RVG) was achieved with the retention of two harmonics in the Fourier-series representation of the time-activity curve. Regional and global analysis of left-ventricul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c8e951556a4aaa819b955d08e41488b7
https://pubmed.ncbi.nlm.nih.gov/6848698
https://pubmed.ncbi.nlm.nih.gov/6848698
Publikováno v:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 30(12)
There has been little interest in use of single photon tomography in gated cardiac blood-pool imaging. This fact arises most likely from two principal causes: the difficulty associated with interpretation of images presented as series of beating slic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::cc504f83e1665a4b8ff1f61728f3b7aa
https://pubmed.ncbi.nlm.nih.gov/2066808
https://pubmed.ncbi.nlm.nih.gov/2066808
Autor:
Robert Roberts, Daniel R. Biello, A Marmor, K S Sampathkumaran, Barry A. Siegel, E. M. Geltman
Publikováno v:
Radiology. 139(3)
Gated radionuclide imaging with 99mTc-labeled red blood cells was employed to assess changes in right atrial (RA) volume in 17 subjects. Studies were repeated within two hours in five of 12 normal subjects and at two and ten days after infarction in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec3d9559bbadbf56fd5c815f15b9cef6
https://pubmed.ncbi.nlm.nih.gov/7232740
https://pubmed.ncbi.nlm.nih.gov/7232740