کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
504436 | 864304 | 2008 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of a new gridding method for fully 3D direct Fourier PET reconstruction based on a two-plane geometry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Evaluation of a new gridding method for fully 3D direct Fourier PET reconstruction based on a two-plane geometry Evaluation of a new gridding method for fully 3D direct Fourier PET reconstruction based on a two-plane geometry](/preview/png/504436.png)
چکیده انگلیسی
This study investigated how the choice of fixed planes for the representation of the projection data of a cylindrical positron emission tomography (PET) scanner simplifies the frequency interpolation required by the 3D Fourier slice theorem (3D-FST). A new gridding algorithm based on a two-plane geometry and requiring only 1D interpolations in the Fourier domain was compared with the direct implementation of the 3D-FST. We show that the use of two orthogonal planes leads to signal to noise ratios similar to those achieved with the 3D-FST algorithm from projection data acquired with up to two times more count rates, while the resolution remains similar.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computerized Medical Imaging and Graphics - Volume 32, Issue 7, October 2008, Pages 580–589
Journal: Computerized Medical Imaging and Graphics - Volume 32, Issue 7, October 2008, Pages 580–589
نویسندگان
F. Ben Bouallègue, J.F. Crouzet, D. Mariano-Goulart,