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Saito H, Ito T, Omachi K, Inugami A, Yamaguchi M, Tsushima M, Mariya Y, Kashiwakura I. Effectiveness of the smoothing filter in pediatric 99mTc-dimercaptosuccinic acid renal scintigraphy. Radiol Phys Technol 2020; 13:104-110. [PMID: 31993983 DOI: 10.1007/s12194-020-00553-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 01/18/2020] [Accepted: 01/20/2020] [Indexed: 11/27/2022]
Abstract
The present study aimed to evaluate whether the use of a smoothing filter would improve the image quality in pediatric 99mTc-dimercaptosuccinic acid (99mTc-DMSA) scintigraphy. We retrospectively reviewed 31 kidneys in 16 consecutive pediatric patients aged 10 months to 14 years. The administered dose was calculated using a weight-based method. Two reviewers randomly evaluated the original planar posterior images and smoothing filter image; they assessed image quality and performed defect evaluations. The evaluation of visual image quality yielded significantly better results for the smoothing filter images than for the original images. Although the smoothing filter images were slightly inferior to the original images in terms of edge sharpness, no significant difference was observed in the defect evaluation. We confirmed that 99mTc-DMSA scintigraphy with a smoothing filter yielded reduced image noise, while maintaining defect evaluation performance and improving image quality.
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Affiliation(s)
- Hitoshi Saito
- Department of Radiology, Akita Kousei Medical Center, 1-1-1 Iijima Nishibukuro, Akita, 011-0948, Japan.
| | - Teruhiro Ito
- Department of Radiology, Akita Kousei Medical Center, 1-1-1 Iijima Nishibukuro, Akita, 011-0948, Japan
| | - Koichi Omachi
- Department of Radiology, Akita Kousei Medical Center, 1-1-1 Iijima Nishibukuro, Akita, 011-0948, Japan
| | - Atsushi Inugami
- Department of Radiology, Akita Kousei Medical Center, 1-1-1 Iijima Nishibukuro, Akita, 011-0948, Japan
| | - Masaru Yamaguchi
- Department of Radiological Life Sciences, Hirosaki University Graduate School of Health Science, 66-1 Hon-cho, Hirosaki, Aomori, 036-8564, Japan
| | - Megumi Tsushima
- Department of Radiological Life Sciences, Hirosaki University Graduate School of Health Science, 66-1 Hon-cho, Hirosaki, Aomori, 036-8564, Japan
| | - Yasushi Mariya
- Department of Radiology, Mutsu General Hospital, 1-2-8 Kogawamachi, Mutsu, Aomori, 035-8601, Japan
| | - Ikuo Kashiwakura
- Department of Radiological Life Sciences, Hirosaki University Graduate School of Health Science, 66-1 Hon-cho, Hirosaki, Aomori, 036-8564, Japan
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