Towards single ultra-low dose CT scan for both attenuation map creation and localization in PET-CT application
We have proposed the use of a single ultra-low dose CT scan for both attenuation map creation and localization purpose for PET applications. An adaptive filtering algorithm specifically for such imaging task has been developed to adequately reduce image noise and streaking artifacts and to provide c...
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Published in | IEEE Symposium Conference Record Nuclear Science 2004 Vol. 4; pp. 2396 - 2398 Vol. 4 |
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Main Authors | , , , , |
Format | Conference Proceeding |
Language | English |
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2004
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Abstract | We have proposed the use of a single ultra-low dose CT scan for both attenuation map creation and localization purpose for PET applications. An adaptive filtering algorithm specifically for such imaging task has been developed to adequately reduce image noise and streaking artifacts and to provide clear delineation of major organs in low signal scanning conditions. Simulated ultra-low dose CT scans were used to evaluate the low-dose scan proposal and the associated adaptive filtering algorithm. The results demonstrated that with the use of a sophisticated pre-processing algorithm, we could utilize a single ultra-low dose CT scan to obtain accurate attenuation map and to provide excellent localization information for PET applications. |
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AbstractList | We have proposed the use of a single ultra-low dose CT scan for both attenuation map creation and localization purpose for PET applications. An adaptive filtering algorithm specifically for such imaging task has been developed to adequately reduce image noise and streaking artifacts and to provide clear delineation of major organs in low signal scanning conditions. Simulated ultra-low dose CT scans were used to evaluate the low-dose scan proposal and the associated adaptive filtering algorithm. The results demonstrated that with the use of a sophisticated pre-processing algorithm, we could utilize a single ultra-low dose CT scan to obtain accurate attenuation map and to provide excellent localization information for PET applications. |
Author | Lonn, A. Stearns, C. Hsieh, J. Jianying Li Colsher, J. |
Author_xml | – sequence: 1 surname: Jianying Li fullname: Jianying Li – sequence: 2 givenname: J. surname: Hsieh fullname: Hsieh, J. – sequence: 3 givenname: J. surname: Colsher fullname: Colsher, J. – sequence: 4 givenname: C. surname: Stearns fullname: Stearns, C. – sequence: 5 givenname: A. surname: Lonn fullname: Lonn, A. |
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Snippet | We have proposed the use of a single ultra-low dose CT scan for both attenuation map creation and localization purpose for PET applications. An adaptive... |
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SubjectTerms | Adaptive filters Attenuation Computed tomography Filtering algorithms Image reconstruction Image resolution Noise reduction Oncology Positron emission tomography Proposals |
Title | Towards single ultra-low dose CT scan for both attenuation map creation and localization in PET-CT application |
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