Evaluation of STIR Library Adapted for PET Scanners with Non-Cylindrical Geometry
Software for Tomographic Image Reconstruction (STIR) is an open source C++ library used to reconstruct single photon emission tomography and positron emission tomography (PET) data. STIR has an experimental scanner geometry modelling feature to accurately model detector placement. In this study, we...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Journal of Imaging |
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| Online Access: | https://www.mdpi.com/2313-433X/8/6/172 |
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| author | Viet Dao Ekaterina Mikhaylova Max L. Ahnen Jannis Fischer Kris Thielemans Charalampos Tsoumpas |
| author_facet | Viet Dao Ekaterina Mikhaylova Max L. Ahnen Jannis Fischer Kris Thielemans Charalampos Tsoumpas |
| author_sort | Viet Dao |
| collection | DOAJ |
| description | Software for Tomographic Image Reconstruction (STIR) is an open source C++ library used to reconstruct single photon emission tomography and positron emission tomography (PET) data. STIR has an experimental scanner geometry modelling feature to accurately model detector placement. In this study, we test and improve this new feature using several types of data: Monte Carlo simulations and measured phantom data acquired from a dedicated brain PET prototype scanner. The results show that the new geometry class applied to non-cylindrical PET scanners improved spatial resolution, uniformity, and image contrast. These are directly observed in the reconstructions of small features in the test quality phantom. Overall, we conclude that the revised “BlocksOnCylindrical” class will be a valuable addition to the next STIR software release with adjustments of existing features (Single Scatter Simulation, forward projection, attenuation corrections) to “BlocksOnCylindrical”. |
| first_indexed | 2024-03-09T23:24:51Z |
| format | Article |
| id | doaj.art-e0640997edb14ae58593c86a7a4e49c0 |
| institution | Directory Open Access Journal |
| issn | 2313-433X |
| language | English |
| last_indexed | 2024-03-09T23:24:51Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Imaging |
| spelling | doaj.art-e0640997edb14ae58593c86a7a4e49c02023-11-23T17:20:42ZengMDPI AGJournal of Imaging2313-433X2022-06-018617210.3390/jimaging8060172Evaluation of STIR Library Adapted for PET Scanners with Non-Cylindrical GeometryViet Dao0Ekaterina Mikhaylova1Max L. Ahnen2Jannis Fischer3Kris Thielemans4Charalampos Tsoumpas5Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UKPositrigo AG, 8005 Zurich, SwitzerlandPositrigo AG, 8005 Zurich, SwitzerlandPositrigo AG, 8005 Zurich, SwitzerlandInstitute of Nuclear Medicine, University College London, London NW1 2BU, UKLeeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UKSoftware for Tomographic Image Reconstruction (STIR) is an open source C++ library used to reconstruct single photon emission tomography and positron emission tomography (PET) data. STIR has an experimental scanner geometry modelling feature to accurately model detector placement. In this study, we test and improve this new feature using several types of data: Monte Carlo simulations and measured phantom data acquired from a dedicated brain PET prototype scanner. The results show that the new geometry class applied to non-cylindrical PET scanners improved spatial resolution, uniformity, and image contrast. These are directly observed in the reconstructions of small features in the test quality phantom. Overall, we conclude that the revised “BlocksOnCylindrical” class will be a valuable addition to the next STIR software release with adjustments of existing features (Single Scatter Simulation, forward projection, attenuation corrections) to “BlocksOnCylindrical”.https://www.mdpi.com/2313-433X/8/6/172tomographyimage reconstructionbrainimaging |
| spellingShingle | Viet Dao Ekaterina Mikhaylova Max L. Ahnen Jannis Fischer Kris Thielemans Charalampos Tsoumpas Evaluation of STIR Library Adapted for PET Scanners with Non-Cylindrical Geometry Journal of Imaging tomography image reconstruction brain imaging |
| title | Evaluation of STIR Library Adapted for PET Scanners with Non-Cylindrical Geometry |
| title_full | Evaluation of STIR Library Adapted for PET Scanners with Non-Cylindrical Geometry |
| title_fullStr | Evaluation of STIR Library Adapted for PET Scanners with Non-Cylindrical Geometry |
| title_full_unstemmed | Evaluation of STIR Library Adapted for PET Scanners with Non-Cylindrical Geometry |
| title_short | Evaluation of STIR Library Adapted for PET Scanners with Non-Cylindrical Geometry |
| title_sort | evaluation of stir library adapted for pet scanners with non cylindrical geometry |
| topic | tomography image reconstruction brain imaging |
| url | https://www.mdpi.com/2313-433X/8/6/172 |
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