Multidetector-Row Computed Tomography Coronary Angiography: Optimization of Image Reconstruction Phase According to the Heart Rate
Background To optimize the image reconstruction phase of multidetector-row computed tomography (MDCT) coronary angiography according to the heart rate is crucial. Methods and Results Scan data were reconstructed for 10 different phases in 58 sequential patients who underwent 8-row cardiac MDCT. The...
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| Veröffentlicht in: | Circulation Journal 2007, Vol.71(1), pp.112-121 |
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| container_title | Circulation Journal |
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| creator | Nagatani, Yukihiro Takahashi, Masashi Takazakura, Ryutaro Nitta, Norihisa Murata, Kiyoshi Ushio, Noritoshi Matsuo, Shinro Yamamoto, Takashi Horie, Minoru |
| description | Background To optimize the image reconstruction phase of multidetector-row computed tomography (MDCT) coronary angiography according to the heart rate is crucial. Methods and Results Scan data were reconstructed for 10 different phases in 58 sequential patients who underwent 8-row cardiac MDCT. The obtained images were scored and compared in terms of motion artifacts and visibility of the vessels, and moreover, ECG record-based evaluations were added for clarification of the temporal relationships among these 10 phases. In the cases with lower heart rates (65 beats/min), they were obtained in the late systolic period. Conclusion As the heart rate increased, the optimal image reconstruction phase changed from mid diastole to late systole. However, it is recommended to try to decrease the heart rate of patients before data acquisition. (Circ J 2007; 71: 112 - 121) |
| doi_str_mv | 10.1253/circj.71.112 |
| format | Article |
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Methods and Results Scan data were reconstructed for 10 different phases in 58 sequential patients who underwent 8-row cardiac MDCT. The obtained images were scored and compared in terms of motion artifacts and visibility of the vessels, and moreover, ECG record-based evaluations were added for clarification of the temporal relationships among these 10 phases. In the cases with lower heart rates (<65 beats/min), the best quality images were obtained when the end of the image reconstruction phase was positioned at the peak of the P wave. In some cases with higher heart rates (>65 beats/min), they were obtained in the late systolic period. Conclusion As the heart rate increased, the optimal image reconstruction phase changed from mid diastole to late systole. However, it is recommended to try to decrease the heart rate of patients before data acquisition. (Circ J 2007; 71: 112 - 121)</description><identifier>ISSN: 1346-9843</identifier><identifier>EISSN: 1347-4820</identifier><identifier>DOI: 10.1253/circj.71.112</identifier><identifier>PMID: 17186988</identifier><language>eng</language><publisher>Japan: The Japanese Circulation Society</publisher><subject>Aged ; Aged, 80 and over ; Cardiac phase ; Coronary Angiography - methods ; Coronary Vessels - pathology ; Coronary Vessels - physiology ; Electrocardiography ; Female ; Heart Rate ; Humans ; Image Processing, Computer-Assisted - methods ; Late systole ; Male ; Mid diastole ; Middle Aged ; P wave ; Reproducibility of Results ; Retrospective Studies ; Systole - physiology ; T wave ; Tomography, Spiral Computed - methods</subject><ispartof>Circulation Journal, 2007, Vol.71(1), pp.112-121</ispartof><rights>2007 THE JAPANESE CIRCULATION SOCIETY</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c451t-2f29b0eb7a84e33d89990ff263dae93f6ed9c9a4e0b244172a005cbb8417d89b3</citedby><cites>FETCH-LOGICAL-c451t-2f29b0eb7a84e33d89990ff263dae93f6ed9c9a4e0b244172a005cbb8417d89b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1881,4021,27921,27922,27923</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17186988$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Nagatani, Yukihiro</creatorcontrib><creatorcontrib>Takahashi, Masashi</creatorcontrib><creatorcontrib>Takazakura, Ryutaro</creatorcontrib><creatorcontrib>Nitta, Norihisa</creatorcontrib><creatorcontrib>Murata, Kiyoshi</creatorcontrib><creatorcontrib>Ushio, Noritoshi</creatorcontrib><creatorcontrib>Matsuo, Shinro</creatorcontrib><creatorcontrib>Yamamoto, Takashi</creatorcontrib><creatorcontrib>Horie, Minoru</creatorcontrib><title>Multidetector-Row Computed Tomography Coronary Angiography: Optimization of Image Reconstruction Phase According to the Heart Rate</title><title>Circulation Journal</title><addtitle>Circ J</addtitle><description>Background To optimize the image reconstruction phase of multidetector-row computed tomography (MDCT) coronary angiography according to the heart rate is crucial. Methods and Results Scan data were reconstructed for 10 different phases in 58 sequential patients who underwent 8-row cardiac MDCT. The obtained images were scored and compared in terms of motion artifacts and visibility of the vessels, and moreover, ECG record-based evaluations were added for clarification of the temporal relationships among these 10 phases. In the cases with lower heart rates (<65 beats/min), the best quality images were obtained when the end of the image reconstruction phase was positioned at the peak of the P wave. In some cases with higher heart rates (>65 beats/min), they were obtained in the late systolic period. Conclusion As the heart rate increased, the optimal image reconstruction phase changed from mid diastole to late systole. However, it is recommended to try to decrease the heart rate of patients before data acquisition. (Circ J 2007; 71: 112 - 121)</description><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Cardiac phase</subject><subject>Coronary Angiography - methods</subject><subject>Coronary Vessels - pathology</subject><subject>Coronary Vessels - physiology</subject><subject>Electrocardiography</subject><subject>Female</subject><subject>Heart Rate</subject><subject>Humans</subject><subject>Image Processing, Computer-Assisted - methods</subject><subject>Late systole</subject><subject>Male</subject><subject>Mid diastole</subject><subject>Middle Aged</subject><subject>P wave</subject><subject>Reproducibility of Results</subject><subject>Retrospective Studies</subject><subject>Systole - physiology</subject><subject>T wave</subject><subject>Tomography, Spiral Computed - methods</subject><issn>1346-9843</issn><issn>1347-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpNkEtPwzAQhC0EoqVw44x64kSKH3nY3KqKl1SEhMrZcpxNmyqJi-0I9d9jmohy2R3NfhqtBqFrgmeEJuxeV1ZvZxmZEUJP0JiwOItiTvHpQaeR4DEboQvnthhTgRNxjkYkIzwVnI_Rw1tX-6oAD9obG32Y7-nCNLvOQzFdmcasrdpt9sGzplV2P52362owL9FZqWoHV8OeoM-nx9XiJVq-P78u5stIxwnxES2pyDHkmeIxMFZwIQQuS5qyQoFgZQqF0ELFgHMaxySjCuNE5zkPOsA5m6DbPndnzVcHzsumchrqWrVgOidTzgQlIg3gXQ9qa5yzUMqdrZrwtSRY_nYlD13JjMjQVcBvhtwub6A4wkM5AZj3wNZ5tYY_QFlf6Rr-pfUjhB5vG2UltOwHkU59tg</recordid><startdate>2007</startdate><enddate>2007</enddate><creator>Nagatani, Yukihiro</creator><creator>Takahashi, Masashi</creator><creator>Takazakura, Ryutaro</creator><creator>Nitta, Norihisa</creator><creator>Murata, Kiyoshi</creator><creator>Ushio, Noritoshi</creator><creator>Matsuo, Shinro</creator><creator>Yamamoto, Takashi</creator><creator>Horie, Minoru</creator><general>The Japanese Circulation Society</general><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>2007</creationdate><title>Multidetector-Row Computed Tomography Coronary Angiography</title><author>Nagatani, Yukihiro ; Takahashi, Masashi ; Takazakura, Ryutaro ; Nitta, Norihisa ; Murata, Kiyoshi ; Ushio, Noritoshi ; Matsuo, Shinro ; Yamamoto, Takashi ; Horie, Minoru</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c451t-2f29b0eb7a84e33d89990ff263dae93f6ed9c9a4e0b244172a005cbb8417d89b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Cardiac phase</topic><topic>Coronary Angiography - methods</topic><topic>Coronary Vessels - pathology</topic><topic>Coronary Vessels - physiology</topic><topic>Electrocardiography</topic><topic>Female</topic><topic>Heart Rate</topic><topic>Humans</topic><topic>Image Processing, Computer-Assisted - methods</topic><topic>Late systole</topic><topic>Male</topic><topic>Mid diastole</topic><topic>Middle Aged</topic><topic>P wave</topic><topic>Reproducibility of Results</topic><topic>Retrospective Studies</topic><topic>Systole - physiology</topic><topic>T wave</topic><topic>Tomography, Spiral Computed - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nagatani, Yukihiro</creatorcontrib><creatorcontrib>Takahashi, Masashi</creatorcontrib><creatorcontrib>Takazakura, Ryutaro</creatorcontrib><creatorcontrib>Nitta, Norihisa</creatorcontrib><creatorcontrib>Murata, Kiyoshi</creatorcontrib><creatorcontrib>Ushio, Noritoshi</creatorcontrib><creatorcontrib>Matsuo, Shinro</creatorcontrib><creatorcontrib>Yamamoto, Takashi</creatorcontrib><creatorcontrib>Horie, Minoru</creatorcontrib><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>Circulation Journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nagatani, Yukihiro</au><au>Takahashi, Masashi</au><au>Takazakura, Ryutaro</au><au>Nitta, Norihisa</au><au>Murata, Kiyoshi</au><au>Ushio, Noritoshi</au><au>Matsuo, Shinro</au><au>Yamamoto, Takashi</au><au>Horie, Minoru</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Multidetector-Row Computed Tomography Coronary Angiography: Optimization of Image Reconstruction Phase According to the Heart Rate</atitle><jtitle>Circulation Journal</jtitle><addtitle>Circ J</addtitle><date>2007</date><risdate>2007</risdate><volume>71</volume><issue>1</issue><spage>112</spage><epage>121</epage><pages>112-121</pages><issn>1346-9843</issn><eissn>1347-4820</eissn><abstract>Background To optimize the image reconstruction phase of multidetector-row computed tomography (MDCT) coronary angiography according to the heart rate is crucial. Methods and Results Scan data were reconstructed for 10 different phases in 58 sequential patients who underwent 8-row cardiac MDCT. The obtained images were scored and compared in terms of motion artifacts and visibility of the vessels, and moreover, ECG record-based evaluations were added for clarification of the temporal relationships among these 10 phases. In the cases with lower heart rates (<65 beats/min), the best quality images were obtained when the end of the image reconstruction phase was positioned at the peak of the P wave. In some cases with higher heart rates (>65 beats/min), they were obtained in the late systolic period. Conclusion As the heart rate increased, the optimal image reconstruction phase changed from mid diastole to late systole. However, it is recommended to try to decrease the heart rate of patients before data acquisition. (Circ J 2007; 71: 112 - 121)</abstract><cop>Japan</cop><pub>The Japanese Circulation Society</pub><pmid>17186988</pmid><doi>10.1253/circj.71.112</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Aged Aged, 80 and over Cardiac phase Coronary Angiography - methods Coronary Vessels - pathology Coronary Vessels - physiology Electrocardiography Female Heart Rate Humans Image Processing, Computer-Assisted - methods Late systole Male Mid diastole Middle Aged P wave Reproducibility of Results Retrospective Studies Systole - physiology T wave Tomography, Spiral Computed - methods |
| title | Multidetector-Row Computed Tomography Coronary Angiography: Optimization of Image Reconstruction Phase According to the Heart Rate |
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