Efficient Strike Artifact Reduction Based on 3D-Morphological Structure Operators from Filtered Back-Projection PET Images
Positron emission tomography (PET) can provide functional images and identify abnormal metabolic regions of the whole-body to effectively detect tumor presence and distribution. The filtered back-projection (FBP) algorithm is one of the most common images reconstruction methods. However, it will gen...
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MDPI AG
2021-10-01
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| Online Access: | https://www.mdpi.com/1424-8220/21/21/7228 |
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| author | Chun-Yi Chiu Yung-Hui Huang Wei-Chang Du Chi-Yuan Wang Huei-Yong Chen Yun-Shiuan Shiu Nan-Han Lu Tai-Been Chen |
| author_facet | Chun-Yi Chiu Yung-Hui Huang Wei-Chang Du Chi-Yuan Wang Huei-Yong Chen Yun-Shiuan Shiu Nan-Han Lu Tai-Been Chen |
| author_sort | Chun-Yi Chiu |
| collection | DOAJ |
| description | Positron emission tomography (PET) can provide functional images and identify abnormal metabolic regions of the whole-body to effectively detect tumor presence and distribution. The filtered back-projection (FBP) algorithm is one of the most common images reconstruction methods. However, it will generate strike artifacts on the reconstructed image and affect the clinical diagnosis of lesions. Past studies have shown reduction in strike artifacts and improvement in quality of images by two-dimensional morphological structure operators (2D-MSO). The morphological structure method merely processes the noise distribution of 2D space and never considers the noise distribution of 3D space. This study was designed to develop three-dimensional-morphological structure operators (3D MSO) for nuclear medicine imaging and effectively eliminating strike artifacts without reducing image quality. A parallel operation was also used to calculate the minimum background standard deviation of the images for three-dimensional morphological structure operators with the optimal response curve (3D-MSO/ORC). As a result of Jaszczak phantom and rat verification, 3D-MSO/ORC showed better denoising performance and image quality than the 2D-MSO method. Thus, 3D MSO/ORC with a 3 × 3 × 3 mask can reduce noise efficiently and provide stability in FBP images. |
| first_indexed | 2024-03-10T05:52:16Z |
| format | Article |
| id | doaj.art-bd9b7413c643423980747c3687ecf631 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T05:52:16Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-bd9b7413c643423980747c3687ecf6312023-11-22T21:38:29ZengMDPI AGSensors1424-82202021-10-012121722810.3390/s21217228Efficient Strike Artifact Reduction Based on 3D-Morphological Structure Operators from Filtered Back-Projection PET ImagesChun-Yi Chiu0Yung-Hui Huang1Wei-Chang Du2Chi-Yuan Wang3Huei-Yong Chen4Yun-Shiuan Shiu5Nan-Han Lu6Tai-Been Chen7Department of Radiology, Kaohsiung Veterans General Hospital, No. 386, Dazhong 1st Rd., Zuoying District, Kaohsiung City 81362, TaiwanDepartment of Medical Imaging and Radiological Sciences, I-Shou University, No. 8, Yida Rd., Yanchao District, Kaohsiung City 82445, TaiwanDepartment of Information Engineering, I-Shou University, No. 1, Sec. 1, Xuecheng Rd., Dashu District, Kaohsiung City 84001, TaiwanDepartment of Medical Imaging and Radiological Sciences, I-Shou University, No. 8, Yida Rd., Yanchao District, Kaohsiung City 82445, TaiwanDepartment of Nuclear Medicine, E-DA Hospital, No. 1, Yida Rd., Yanchao District, Kaohsiung City 82445, TaiwanDepartment of Nuclear Medicine, E-DA Hospital, No. 1, Yida Rd., Yanchao District, Kaohsiung City 82445, TaiwanDepartment of Medical Imaging and Radiological Sciences, I-Shou University, No. 8, Yida Rd., Yanchao District, Kaohsiung City 82445, TaiwanDepartment of Medical Imaging and Radiological Sciences, I-Shou University, No. 8, Yida Rd., Yanchao District, Kaohsiung City 82445, TaiwanPositron emission tomography (PET) can provide functional images and identify abnormal metabolic regions of the whole-body to effectively detect tumor presence and distribution. The filtered back-projection (FBP) algorithm is one of the most common images reconstruction methods. However, it will generate strike artifacts on the reconstructed image and affect the clinical diagnosis of lesions. Past studies have shown reduction in strike artifacts and improvement in quality of images by two-dimensional morphological structure operators (2D-MSO). The morphological structure method merely processes the noise distribution of 2D space and never considers the noise distribution of 3D space. This study was designed to develop three-dimensional-morphological structure operators (3D MSO) for nuclear medicine imaging and effectively eliminating strike artifacts without reducing image quality. A parallel operation was also used to calculate the minimum background standard deviation of the images for three-dimensional morphological structure operators with the optimal response curve (3D-MSO/ORC). As a result of Jaszczak phantom and rat verification, 3D-MSO/ORC showed better denoising performance and image quality than the 2D-MSO method. Thus, 3D MSO/ORC with a 3 × 3 × 3 mask can reduce noise efficiently and provide stability in FBP images.https://www.mdpi.com/1424-8220/21/21/7228PETFBPstrike artifactsMSOORC |
| spellingShingle | Chun-Yi Chiu Yung-Hui Huang Wei-Chang Du Chi-Yuan Wang Huei-Yong Chen Yun-Shiuan Shiu Nan-Han Lu Tai-Been Chen Efficient Strike Artifact Reduction Based on 3D-Morphological Structure Operators from Filtered Back-Projection PET Images Sensors PET FBP strike artifacts MSO ORC |
| title | Efficient Strike Artifact Reduction Based on 3D-Morphological Structure Operators from Filtered Back-Projection PET Images |
| title_full | Efficient Strike Artifact Reduction Based on 3D-Morphological Structure Operators from Filtered Back-Projection PET Images |
| title_fullStr | Efficient Strike Artifact Reduction Based on 3D-Morphological Structure Operators from Filtered Back-Projection PET Images |
| title_full_unstemmed | Efficient Strike Artifact Reduction Based on 3D-Morphological Structure Operators from Filtered Back-Projection PET Images |
| title_short | Efficient Strike Artifact Reduction Based on 3D-Morphological Structure Operators from Filtered Back-Projection PET Images |
| title_sort | efficient strike artifact reduction based on 3d morphological structure operators from filtered back projection pet images |
| topic | PET FBP strike artifacts MSO ORC |
| url | https://www.mdpi.com/1424-8220/21/21/7228 |
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