发明名称 |
Dynamic PET imaging with isotope contamination compensation |
摘要 |
A nuclear imaging system includes a scanner (8), such as a PET scanner. A patient is injected with a [13N]ammonia radioisotope tracer which is contaminated with a small percent of 18F contamination. The scanner receives radiation from the injected tracer and a reconstruction processor (28) reconstructs the detected radiation into image representations. A calibration processor (16) generates an estimated decay curve based on the proton bombardment and a priori information about the tracer. An activity meter (42) measures radiation emitted from a sample of the tracer and a dose calibrator (44) determines a decay curve from the measured radiation. The detected radiation is corrected with one of the decay curves during reconstruction or a correction processor (50) corrects reconstructed images with one or both of the decay curves. A display (14) displays uncorrected reconstructed images and the decay curve and/or the corrected images. |
申请公布号 |
US8692681(B2) |
申请公布日期 |
2014.04.08 |
申请号 |
US201013382191 |
申请日期 |
2010.06.15 |
申请人 |
WIECZOREK HERFRIED;THIELE FRANK O.;NARAYANAN MANOJ V.;KONINKLIJKE PHILIPS N.V. |
发明人 |
WIECZOREK HERFRIED;THIELE FRANK O.;NARAYANAN MANOJ V. |
分类号 |
G08B21/00 |
主分类号 |
G08B21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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