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Radiological Physics and Technology
Published in: Radiological Physics and Technology 1/2020

01-03-2020 | Vesicorenal Reflux

Effectiveness of the smoothing filter in pediatric 99mTc-dimercaptosuccinic acid renal scintigraphy

Authors: Hitoshi Saito, Teruhiro Ito, Koichi Omachi, Atsushi Inugami, Masaru Yamaguchi, Megumi Tsushima, Yasushi Mariya, Ikuo Kashiwakura

Published in: Radiological Physics and Technology | Issue 1/2020

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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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Metadata
Title
Effectiveness of the smoothing filter in pediatric 99mTc-dimercaptosuccinic acid renal scintigraphy
Authors
Hitoshi Saito
Teruhiro Ito
Koichi Omachi
Atsushi Inugami
Masaru Yamaguchi
Megumi Tsushima
Yasushi Mariya
Ikuo Kashiwakura
Publication date
01-03-2020
Publisher
Springer Singapore
Published in
Radiological Physics and Technology / Issue 1/2020
Print ISSN: 1865-0333
Electronic ISSN: 1865-0341
DOI
https://doi.org/10.1007/s12194-020-00553-8

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