Truncation reduction in fan-beam transmission scanning using the Radon transform consistency conditions
Transmission scanning is needed for accurate attenuation correction in cardiac Single Photon Emission Tomography (SPET). Simultaneous emission and transmission imaging can be done using a scintillation camera with a fan-beam collimator and a line source at the focal point. The transmission data will...
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| Veröffentlicht in: | IEEE transactions on nuclear science 2000-06, Vol.47 (3), p.989-993 |
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| container_title | IEEE transactions on nuclear science |
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| creator | Erlandsson, K. Visvikis, D. Waddington, W.A. Jarritt, P. |
| description | Transmission scanning is needed for accurate attenuation correction in cardiac Single Photon Emission Tomography (SPET). Simultaneous emission and transmission imaging can be done using a scintillation camera with a fan-beam collimator and a line source at the focal point. The transmission data will be truncated, however, which may lead to inaccuracy in the reconstructed emission values. The authors have developed two different methods for augmentation of truncated transmission data, based on the Radon transform consistency conditions. The authors' results show that the uniformity in the myocardium can be improved with these methods, as compared to using the truncated data directly in the reconstruction. |
| doi_str_mv | 10.1109/23.856536 |
| format | Article |
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Simultaneous emission and transmission imaging can be done using a scintillation camera with a fan-beam collimator and a line source at the focal point. The transmission data will be truncated, however, which may lead to inaccuracy in the reconstructed emission values. The authors have developed two different methods for augmentation of truncated transmission data, based on the Radon transform consistency conditions. The authors' results show that the uniformity in the myocardium can be improved with these methods, as compared to using the truncated data directly in the reconstruction.</description><identifier>ISSN: 0018-9499</identifier><identifier>EISSN: 1558-1578</identifier><identifier>DOI: 10.1109/23.856536</identifier><identifier>CODEN: IETNAE</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Attenuation ; Augmentation ; Biomedical imaging ; Cameras ; Collimators ; Consistency ; Educational institutions ; Emission ; Hospitals ; Image reconstruction ; Integral equations ; Nuclear medicine ; Photon emission ; Radon ; Scanning ; Single photon emission computed tomography ; Transforms</subject><ispartof>IEEE transactions on nuclear science, 2000-06, Vol.47 (3), p.989-993</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The authors' results show that the uniformity in the myocardium can be improved with these methods, as compared to using the truncated data directly in the reconstruction.</description><subject>Attenuation</subject><subject>Augmentation</subject><subject>Biomedical imaging</subject><subject>Cameras</subject><subject>Collimators</subject><subject>Consistency</subject><subject>Educational institutions</subject><subject>Emission</subject><subject>Hospitals</subject><subject>Image reconstruction</subject><subject>Integral equations</subject><subject>Nuclear medicine</subject><subject>Photon emission</subject><subject>Radon</subject><subject>Scanning</subject><subject>Single photon emission computed tomography</subject><subject>Transforms</subject><issn>0018-9499</issn><issn>1558-1578</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp90U1LwzAYB_AgCs7pwaungqB46MxL0yZHGb7BQJB5LnmdGWs6k_awb790HR48eEme8P_xJOEB4BrBGUKQP2IyY7SkpDwBE0QpyxGt2CmYQIhYzgvOz8FFjOt0LCikE7Baht4r0bnWZ8HoXh0q5zMrfC6NaLIuCB8bF-MQRCW8d36V9XFYu2-TfQqdgoOybWgy1froYme82g21dkPHeAnOrNhEc3Xcp-Dr5Xk5f8sXH6_v86dFrgipuhxhgZE2SENKLJRUUyk501BqSaisoLYKEasqRRVhzMCiVJLLEmFDhJUVJlNwP_bdhvanN7Gr09OV2WyEN20fa46KEnPOeJJ3_0rMSgorXiZ4-weu2z749IsaQYgLwgkdLn4YlQptjMHYehtcI8IuoXoYTY1JPY4m2ZvROmPMrzuGe3aEit0</recordid><startdate>20000601</startdate><enddate>20000601</enddate><creator>Erlandsson, K.</creator><creator>Visvikis, D.</creator><creator>Waddington, W.A.</creator><creator>Jarritt, P.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Simultaneous emission and transmission imaging can be done using a scintillation camera with a fan-beam collimator and a line source at the focal point. The transmission data will be truncated, however, which may lead to inaccuracy in the reconstructed emission values. The authors have developed two different methods for augmentation of truncated transmission data, based on the Radon transform consistency conditions. The authors' results show that the uniformity in the myocardium can be improved with these methods, as compared to using the truncated data directly in the reconstruction.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/23.856536</doi><tpages>5</tpages></addata></record> |
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| identifier | ISSN: 0018-9499 |
| ispartof | IEEE transactions on nuclear science, 2000-06, Vol.47 (3), p.989-993 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Attenuation Augmentation Biomedical imaging Cameras Collimators Consistency Educational institutions Emission Hospitals Image reconstruction Integral equations Nuclear medicine Photon emission Radon Scanning Single photon emission computed tomography Transforms |
| title | Truncation reduction in fan-beam transmission scanning using the Radon transform consistency conditions |
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