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Radiological Physics and Technology
Published in: Radiological Physics and Technology 3/2019

01-09-2019 | Computed Tomography

A complementary scheme for automated detection of high-uptake regions on dedicated breast PET and whole-body PET/CT

Authors: Natsuki Minoura, Atsushi Teramoto, Akari Ito, Osamu Yamamuro, Masami Nishio, Kuniaki Saito, Hiroshi Fujita

Published in: Radiological Physics and Technology | Issue 3/2019

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Abstract

In this study, we aimed to develop a hybrid method for automated detection of high-uptake regions in the breast and axilla using dedicated breast positron-emission tomography (db PET) and whole-body PET/computed tomography (CT) images. In our proposed method, high-uptake regions in the breast and axilla were detected using db PET images and whole-body PET/CT images. In db PET images, high-uptake regions in the breast were detected using adaptive thresholding technique based on the noise characteristics. In whole-body PET/CT images, the region of the breast that includes the axilla was first extracted using CT images. Next, high-uptake regions in the extracted breast region were detected on the PET images. By integration of the results of the two types of PET images, a final candidate region was obtained. In the experiments, the accuracy of extracting the region of the breast and detection ability was evaluated using clinical data. As a result, all breast regions were extracted correctly. The sensitivity of detection was 0.765, and the number of false positive cases were 1.8, which was 30% better than those on whole-body PET/CT alone. These results suggested that the proposed method, combining the two types of PET images is effective for improving detection performance.
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Metadata
Title
A complementary scheme for automated detection of high-uptake regions on dedicated breast PET and whole-body PET/CT
Authors
Natsuki Minoura
Atsushi Teramoto
Akari Ito
Osamu Yamamuro
Masami Nishio
Kuniaki Saito
Hiroshi Fujita
Publication date
01-09-2019
Publisher
Springer Singapore
Published in
Radiological Physics and Technology / Issue 3/2019
Print ISSN: 1865-0333
Electronic ISSN: 1865-0341
DOI
https://doi.org/10.1007/s12194-019-00516-8

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