PET imaging using a triple-head gamma camera
Summary Interest in clinical fluorodeoxyglucose (FDG) imaging with multiple‐head gamma cameras is growing. To improve sensitivity, triple‐head coincidence imaging has been proposed. We report our initial experiences with a triple‐head coincidence gamma camera with 19 mm sodium iodide crystal thickne...
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Published in | Clinical physiology and functional imaging Vol. 22; no. 5; pp. 328 - 331 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Oxford, UK
Blackwell Science Ltd
01.09.2002
Blackwell Science |
Subjects | |
Online Access | Get full text |
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Summary: | Summary
Interest in clinical fluorodeoxyglucose (FDG) imaging with multiple‐head gamma cameras is growing. To improve sensitivity, triple‐head coincidence imaging has been proposed. We report our initial experiences with a triple‐head coincidence gamma camera with 19 mm sodium iodide crystal thickness. Several positron emission tomography‐image quality parameters were evaluated using a Carlson and line source phantom. The system sensitivity with two‐dimensional axial shields was 830 cps kBq−1 ml−1 and maximum noise equivalent count rate 1900 cps for an 18F‐activity of 50 MBq. The imaging resolution was in central axial 7·0 mm and in central transaxial 7·6 mm, respectively. The average scatter fraction in scattered media was 29%. Clinical brain, heart and whole body images studies with [18F]FDG were acquired and they show good correlation with the phantom image quality. As a conclusion, triple‐head coincidence gamma camera provides relatively high‐count rate imaging with good contrast and resolution. |
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Bibliography: | ark:/67375/WNG-MCLLGMLD-1 istex:CEB6F1A7450D3BE255D4CA2DAF1A444E0C4C9295 ArticleID:439 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1475-0961 1475-097X |
DOI: | 10.1046/j.1475-097X.2002.00439.x |