Attenuation correction using SPECT emission data only
A major step toward quantitative single photon emission computerized tomography (SPECT) imaging may be achieved if attenuation, scatter, and blurring effects are accounted for in the reconstruction process. Here we consider an approach which simultaneously estimates the unknown attenuation coefficie...
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| Veröffentlicht in: | IEEE transactions on nuclear science 2002-10, Vol.49 (5), p.2172-2179 |
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| container_title | IEEE transactions on nuclear science |
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| creator | Gourion, D. Noll, D. Gantet, P. Celler, A. Esquerre, J.P. |
| description | A major step toward quantitative single photon emission computerized tomography (SPECT) imaging may be achieved if attenuation, scatter, and blurring effects are accounted for in the reconstruction process. Here we consider an approach which simultaneously estimates the unknown attenuation coefficient and the emission source using the emission data only. This leads to an inverse mathematical problem which may no longer be solved via iterative procedures like the well-known EM-algorithm. Instead, a regularization approach based on nonlinear optimization techniques is used. We present a successful strategy and test it in a simulated case study and a physical phantom experiment. |
| doi_str_mv | 10.1109/TNS.2002.803862 |
| format | Article |
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We present a successful strategy and test it in a simulated case study and a physical phantom experiment.</description><subject>Attenuation</subject><subject>Attenuation coefficients</subject><subject>Blurring</subject><subject>Computed tomography</subject><subject>Computer simulation</subject><subject>Electromagnetic scattering</subject><subject>Emission</subject><subject>Image reconstruction</subject><subject>Imaging</subject><subject>Imaging phantoms</subject><subject>Isotopes</subject><subject>Mathematical models</subject><subject>Particle scattering</subject><subject>Positron emission tomography</subject><subject>Reconstruction</subject><subject>Single photon emission computed tomography</subject><subject>Testing</subject><issn>0018-9499</issn><issn>1558-1578</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kDtPwzAUhS0EEqUwM7BEDDClvX7F9lhV5SFVgNTsluM4KFWaFDsZ-Pc4hAExMN2HvnN17kHoGsMCY1DL_GW3IABkIYHKjJygGeZcppgLeYpmAFimiil1ji5C2MeRceAzxFd979rB9HXXJrbz3tnvdgh1-57s3jbrPHGHOoRxWZreJF3bfF6is8o0wV391DnKHzb5-indvj4-r1fb1HJgfVpwiWlhskpmBS8LK6Q0FGMmSYFNpkRJLBG8cBnJGGGuLB3jVDIoLK0IUDpH99PZo-8-Bhd6HZ1Y1zSmdd0QtAKhWCYVj-TdvySRAqSgMoK3f8B9N_g2PqGVogCjkQgtJ8j6LgTvKn309cH4T41Bj2HrGLYew9ZT2FFxMylq59wvOroDQb8AC514mg</recordid><startdate>20021001</startdate><enddate>20021001</enddate><creator>Gourion, D.</creator><creator>Noll, D.</creator><creator>Gantet, P.</creator><creator>Celler, A.</creator><creator>Esquerre, J.P.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| issn | 0018-9499 1558-1578 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Attenuation Attenuation coefficients Blurring Computed tomography Computer simulation Electromagnetic scattering Emission Image reconstruction Imaging Imaging phantoms Isotopes Mathematical models Particle scattering Positron emission tomography Reconstruction Single photon emission computed tomography Testing |
| title | Attenuation correction using SPECT emission data only |
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