Frequency domain analysis of contrast echocardiographic images
Sequences of echocontrastographic images of the dog's myocardium are analysed in the frequency domain for the identification of underperfused areas. Owing to the fact that echo images are contaminated by noise and artifacts, we have applied filtering techniques based on Fourier's methods i...
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| Veröffentlicht in: | Journal of biomedical engineering 1989-03, Vol.11 (2), p.90-95 |
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| container_end_page | 95 |
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| container_issue | 2 |
| container_start_page | 90 |
| container_title | Journal of biomedical engineering |
| container_volume | 11 |
| creator | Ferdeghini, E.M. Landini, L. Rovai, D. Lombardi, M. De Pieri, G. L'Abbate, A. Benassi, A. |
| description | Sequences of echocontrastographic images of the dog's myocardium are analysed in the frequency domain for the identification of underperfused areas. Owing to the fact that echo images are contaminated by noise and artifacts, we have applied filtering techniques based on Fourier's methods in sequences of raw frames recorded during perfusion with a contrast agent. Thus we have been able to assess correctly the spatial and temporal distribution of the contrast, i.e. the agent kinetics which parallel the distribution of coronary blood flow, in terms of the time necessary for the flow gradient to reach its maximum value, and to describe such a distribution by a functional image obtained by means of an original procedure. |
| doi_str_mv | 10.1016/0141-5425(89)90114-3 |
| format | Article |
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Owing to the fact that echo images are contaminated by noise and artifacts, we have applied filtering techniques based on Fourier's methods in sequences of raw frames recorded during perfusion with a contrast agent. Thus we have been able to assess correctly the spatial and temporal distribution of the contrast, i.e. the agent kinetics which parallel the distribution of coronary blood flow, in terms of the time necessary for the flow gradient to reach its maximum value, and to describe such a distribution by a functional image obtained by means of an original procedure.</description><identifier>ISSN: 0141-5425</identifier><identifier>DOI: 10.1016/0141-5425(89)90114-3</identifier><identifier>PMID: 2704224</identifier><identifier>CODEN: JBIEDR</identifier><language>eng</language><publisher>Oxford: Elsevier Inc</publisher><subject>Algorithms ; Animals ; Biological and medical sciences ; Computer Systems ; contrast ; Contrast Media ; Coronary Circulation ; Coronary Disease - physiopathology ; Dogs ; Echocardiography - methods ; Echography ; Fourier Analysis ; functional imaging ; Image Processing, Computer-Assisted ; Investigative techniques, diagnostic techniques (general aspects) ; Medical sciences ; Miscellaneous. 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Owing to the fact that echo images are contaminated by noise and artifacts, we have applied filtering techniques based on Fourier's methods in sequences of raw frames recorded during perfusion with a contrast agent. Thus we have been able to assess correctly the spatial and temporal distribution of the contrast, i.e. the agent kinetics which parallel the distribution of coronary blood flow, in terms of the time necessary for the flow gradient to reach its maximum value, and to describe such a distribution by a functional image obtained by means of an original procedure.</description><subject>Algorithms</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Computer Systems</subject><subject>contrast</subject><subject>Contrast Media</subject><subject>Coronary Circulation</subject><subject>Coronary Disease - physiopathology</subject><subject>Dogs</subject><subject>Echocardiography - methods</subject><subject>Echography</subject><subject>Fourier Analysis</subject><subject>functional imaging</subject><subject>Image Processing, Computer-Assisted</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Medical sciences</subject><subject>Miscellaneous. Technology</subject><subject>Software Design</subject><subject>Ultrasonic investigative techniques</subject><issn>0141-5425</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kMFKAzEQhnNQaq2-gcIeRPSwmmyS3eylIMWqUPCi55Amkzayu6nJVujbm9qlR08zzHwz_HwIXRH8QDApHzFhJOes4Heivq8xISynJ2h8HJ-h8xi_MGaiIuUIjYoKs6JgYzSdB_jeQqd3mfGtcl2mOtXsoouZt5n2XR9U7DPQa69VMM6vgtqsnc5cq1YQL9CpVU2Ey6FO0Of8-WP2mi_eX95mT4tcU8r7vKgYN4oSbQ1jwAtRLilLncYGwNYCW7001JoK44qn0CXHYMuC85qXXNOSTtDt4e8m-BQ39rJ1UUPTqA78NspK1KSgok4gO4A6-BgDWLkJKWrYSYLlXpXcO5F7J1LU8k-VpOnsevi_XbZgjkeDp7S_GfYqatXYoDrt4hFLUrmgImHTAwbJxY-DIKN2SS4YF0D30nj3f45fb_aGMA</recordid><startdate>19890301</startdate><enddate>19890301</enddate><creator>Ferdeghini, E.M.</creator><creator>Landini, L.</creator><creator>Rovai, D.</creator><creator>Lombardi, M.</creator><creator>De Pieri, G.</creator><creator>L'Abbate, A.</creator><creator>Benassi, A.</creator><general>Elsevier Inc</general><general>Butterworth-Heinemann</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19890301</creationdate><title>Frequency domain analysis of contrast echocardiographic images</title><author>Ferdeghini, E.M. ; Landini, L. ; Rovai, D. ; Lombardi, M. ; De Pieri, G. ; L'Abbate, A. ; Benassi, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c335t-2745da31cfd44e5286b3444ec0deef980fcbd3fd70075014650ef62559565c363</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>Algorithms</topic><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Computer Systems</topic><topic>contrast</topic><topic>Contrast Media</topic><topic>Coronary Circulation</topic><topic>Coronary Disease - physiopathology</topic><topic>Dogs</topic><topic>Echocardiography - methods</topic><topic>Echography</topic><topic>Fourier Analysis</topic><topic>functional imaging</topic><topic>Image Processing, Computer-Assisted</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Medical sciences</topic><topic>Miscellaneous. Technology</topic><topic>Software Design</topic><topic>Ultrasonic investigative techniques</topic><toplevel>online_resources</toplevel><creatorcontrib>Ferdeghini, E.M.</creatorcontrib><creatorcontrib>Landini, L.</creatorcontrib><creatorcontrib>Rovai, D.</creatorcontrib><creatorcontrib>Lombardi, M.</creatorcontrib><creatorcontrib>De Pieri, G.</creatorcontrib><creatorcontrib>L'Abbate, A.</creatorcontrib><creatorcontrib>Benassi, A.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of biomedical engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ferdeghini, E.M.</au><au>Landini, L.</au><au>Rovai, D.</au><au>Lombardi, M.</au><au>De Pieri, G.</au><au>L'Abbate, A.</au><au>Benassi, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Frequency domain analysis of contrast echocardiographic images</atitle><jtitle>Journal of biomedical engineering</jtitle><addtitle>J Biomed Eng</addtitle><date>1989-03-01</date><risdate>1989</risdate><volume>11</volume><issue>2</issue><spage>90</spage><epage>95</epage><pages>90-95</pages><issn>0141-5425</issn><coden>JBIEDR</coden><abstract>Sequences of echocontrastographic images of the dog's myocardium are analysed in the frequency domain for the identification of underperfused areas. Owing to the fact that echo images are contaminated by noise and artifacts, we have applied filtering techniques based on Fourier's methods in sequences of raw frames recorded during perfusion with a contrast agent. Thus we have been able to assess correctly the spatial and temporal distribution of the contrast, i.e. the agent kinetics which parallel the distribution of coronary blood flow, in terms of the time necessary for the flow gradient to reach its maximum value, and to describe such a distribution by a functional image obtained by means of an original procedure.</abstract><cop>Oxford</cop><pub>Elsevier Inc</pub><pmid>2704224</pmid><doi>10.1016/0141-5425(89)90114-3</doi><tpages>6</tpages></addata></record> |
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| ispartof | Journal of biomedical engineering, 1989-03, Vol.11 (2), p.90-95 |
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| language | eng |
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| subjects | Algorithms Animals Biological and medical sciences Computer Systems contrast Contrast Media Coronary Circulation Coronary Disease - physiopathology Dogs Echocardiography - methods Echography Fourier Analysis functional imaging Image Processing, Computer-Assisted Investigative techniques, diagnostic techniques (general aspects) Medical sciences Miscellaneous. Technology Software Design Ultrasonic investigative techniques |
| title | Frequency domain analysis of contrast echocardiographic images |
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