Investigation on lesion detectability in step-and-shoot mode and continuous mode digital tomosynthesis systems with anatomical background

Changwoo Lee; Jongduk Baek

doi:10.1117/12.2512751

Investigation on lesion detectability in step-and-shoot mode and continuous mode digital tomosynthesis systems with anatomical background

Changwoo Lee, Jongduk Baek

School of Integrated Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Digital tomosynthesis systems promise better image quality compared to radiography, and thus these have been widely used in chest, dental, and breast imaging. Currently, two acquisition modes are used in digital tomosynthesis systems, such as step-and-shoot mode and continuous mode. The main difference between two acquisition modes is x-ray tube motion during data scanning, which affects spatial resolution and contrast. In this work, we investigate the effects of the X-ray tube motion on lesion detectability with anatomical background. We considered six spherical objects with diameters of 0.5, 0.8, 1, 2, 5, 10 mm as lesions, and anatomical background was modeled using the power law spectrum of breast anatomy. Projection data were acquired using two acquisition modes, and in-plane images are reconstructed using Feldkamp-Davis-Kress (FDK) algorithm. To show the effect of x-ray tube motion on lesion detectability, we computed task signal-to-noise ratio (SNR) of channelized Hotelling observer with Laguerre-Gauss channels for six spherical objects. Our results show that the task-SNR of step-and-shoot mode is higher than that of continuous mode for small lesion sizes (i.e., less than 1 mm diameter). This behavior indicates that tomosynthesis system with step-and-shoot mode is more beneficial to improve the detectability of small lesions than that with continuous mode.

Original language	English
Title of host publication	Medical Imaging 2019
Subtitle of host publication	Physics of Medical Imaging
Editors	Taly Gilat Schmidt, Guang-Hong Chen, Hilde Bosmans
Publisher	SPIE
ISBN (Electronic)	9781510625433
DOIs	https://doi.org/10.1117/12.2512751
Publication status	Published - 2019
Event	Medical Imaging 2019: Physics of Medical Imaging - San Diego, United States Duration: 2019 Feb 17 → 2019 Feb 20

Publication series

Name	Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume	10948
ISSN (Print)	1605-7422

Conference

Conference	Medical Imaging 2019: Physics of Medical Imaging
Country/Territory	United States
City	San Diego
Period	19/2/17 → 19/2/20

Bibliographical note

Funding Information:
Bio & Medical Technology Development Program of the National Research Foundation (NRF) funded by the Ministry of Science and ICT (2018M3A9H6081482, 2018R1A1A1A05077894, 2018M3A9H6081483, 2017R1D1A1B030 31313, 2017M2A2A4A01070302, 2017M2A2A6A01019663, 2017M2A2A6A02087175); MSIP (Ministry of Science, ICT and Future Planning), Korea, under the ICT Consilience Creative Program (IITP-2018-2017-0-01015) supervised by the IITP (Institute for Information & communications Technology Promotion).

Publisher Copyright:
© SPIE. Downloading of the abstract is permitted for personal use only.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
Atomic and Molecular Physics, and Optics
Radiology Nuclear Medicine and imaging

Access to Document

10.1117/12.2512751

Cite this

Lee, C., & Baek, J. (2019). Investigation on lesion detectability in step-and-shoot mode and continuous mode digital tomosynthesis systems with anatomical background. In T. G. Schmidt, G-H. Chen, & H. Bosmans (Eds.), Medical Imaging 2019: Physics of Medical Imaging Article 109485E (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 10948). SPIE. https://doi.org/10.1117/12.2512751

@inproceedings{78a674b5ed3948e0aa40314929bc687a,

title = "Investigation on lesion detectability in step-and-shoot mode and continuous mode digital tomosynthesis systems with anatomical background",

abstract = "Digital tomosynthesis systems promise better image quality compared to radiography, and thus these have been widely used in chest, dental, and breast imaging. Currently, two acquisition modes are used in digital tomosynthesis systems, such as step-and-shoot mode and continuous mode. The main difference between two acquisition modes is x-ray tube motion during data scanning, which affects spatial resolution and contrast. In this work, we investigate the effects of the X-ray tube motion on lesion detectability with anatomical background. We considered six spherical objects with diameters of 0.5, 0.8, 1, 2, 5, 10 mm as lesions, and anatomical background was modeled using the power law spectrum of breast anatomy. Projection data were acquired using two acquisition modes, and in-plane images are reconstructed using Feldkamp-Davis-Kress (FDK) algorithm. To show the effect of x-ray tube motion on lesion detectability, we computed task signal-to-noise ratio (SNR) of channelized Hotelling observer with Laguerre-Gauss channels for six spherical objects. Our results show that the task-SNR of step-and-shoot mode is higher than that of continuous mode for small lesion sizes (i.e., less than 1 mm diameter). This behavior indicates that tomosynthesis system with step-and-shoot mode is more beneficial to improve the detectability of small lesions than that with continuous mode.",

author = "Changwoo Lee and Jongduk Baek",

note = "Funding Information: Bio & Medical Technology Development Program of the National Research Foundation (NRF) funded by the Ministry of Science and ICT (2018M3A9H6081482, 2018R1A1A1A05077894, 2018M3A9H6081483, 2017R1D1A1B030 31313, 2017M2A2A4A01070302, 2017M2A2A6A01019663, 2017M2A2A6A02087175); MSIP (Ministry of Science, ICT and Future Planning), Korea, under the ICT Consilience Creative Program (IITP-2018-2017-0-01015) supervised by the IITP (Institute for Information & communications Technology Promotion). Publisher Copyright: {\textcopyright} SPIE. Downloading of the abstract is permitted for personal use only.; Medical Imaging 2019: Physics of Medical Imaging ; Conference date: 17-02-2019 Through 20-02-2019",

year = "2019",

doi = "10.1117/12.2512751",

language = "English",

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Lee, C & Baek, J 2019, Investigation on lesion detectability in step-and-shoot mode and continuous mode digital tomosynthesis systems with anatomical background. in TG Schmidt, G-H Chen & H Bosmans (eds), Medical Imaging 2019: Physics of Medical Imaging., 109485E, Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 10948, SPIE, Medical Imaging 2019: Physics of Medical Imaging, San Diego, United States, 19/2/17. https://doi.org/10.1117/12.2512751

Investigation on lesion detectability in step-and-shoot mode and continuous mode digital tomosynthesis systems with anatomical background. / Lee, Changwoo; Baek, Jongduk.
Medical Imaging 2019: Physics of Medical Imaging. ed. / Taly Gilat Schmidt; Guang-Hong Chen; Hilde Bosmans. SPIE, 2019. 109485E (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 10948).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Investigation on lesion detectability in step-and-shoot mode and continuous mode digital tomosynthesis systems with anatomical background

AU - Lee, Changwoo

AU - Baek, Jongduk

N1 - Funding Information: Bio & Medical Technology Development Program of the National Research Foundation (NRF) funded by the Ministry of Science and ICT (2018M3A9H6081482, 2018R1A1A1A05077894, 2018M3A9H6081483, 2017R1D1A1B030 31313, 2017M2A2A4A01070302, 2017M2A2A6A01019663, 2017M2A2A6A02087175); MSIP (Ministry of Science, ICT and Future Planning), Korea, under the ICT Consilience Creative Program (IITP-2018-2017-0-01015) supervised by the IITP (Institute for Information & communications Technology Promotion). Publisher Copyright: © SPIE. Downloading of the abstract is permitted for personal use only.

PY - 2019

Y1 - 2019

N2 - Digital tomosynthesis systems promise better image quality compared to radiography, and thus these have been widely used in chest, dental, and breast imaging. Currently, two acquisition modes are used in digital tomosynthesis systems, such as step-and-shoot mode and continuous mode. The main difference between two acquisition modes is x-ray tube motion during data scanning, which affects spatial resolution and contrast. In this work, we investigate the effects of the X-ray tube motion on lesion detectability with anatomical background. We considered six spherical objects with diameters of 0.5, 0.8, 1, 2, 5, 10 mm as lesions, and anatomical background was modeled using the power law spectrum of breast anatomy. Projection data were acquired using two acquisition modes, and in-plane images are reconstructed using Feldkamp-Davis-Kress (FDK) algorithm. To show the effect of x-ray tube motion on lesion detectability, we computed task signal-to-noise ratio (SNR) of channelized Hotelling observer with Laguerre-Gauss channels for six spherical objects. Our results show that the task-SNR of step-and-shoot mode is higher than that of continuous mode for small lesion sizes (i.e., less than 1 mm diameter). This behavior indicates that tomosynthesis system with step-and-shoot mode is more beneficial to improve the detectability of small lesions than that with continuous mode.

AB - Digital tomosynthesis systems promise better image quality compared to radiography, and thus these have been widely used in chest, dental, and breast imaging. Currently, two acquisition modes are used in digital tomosynthesis systems, such as step-and-shoot mode and continuous mode. The main difference between two acquisition modes is x-ray tube motion during data scanning, which affects spatial resolution and contrast. In this work, we investigate the effects of the X-ray tube motion on lesion detectability with anatomical background. We considered six spherical objects with diameters of 0.5, 0.8, 1, 2, 5, 10 mm as lesions, and anatomical background was modeled using the power law spectrum of breast anatomy. Projection data were acquired using two acquisition modes, and in-plane images are reconstructed using Feldkamp-Davis-Kress (FDK) algorithm. To show the effect of x-ray tube motion on lesion detectability, we computed task signal-to-noise ratio (SNR) of channelized Hotelling observer with Laguerre-Gauss channels for six spherical objects. Our results show that the task-SNR of step-and-shoot mode is higher than that of continuous mode for small lesion sizes (i.e., less than 1 mm diameter). This behavior indicates that tomosynthesis system with step-and-shoot mode is more beneficial to improve the detectability of small lesions than that with continuous mode.

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M3 - Conference contribution

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BT - Medical Imaging 2019

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ER -

Investigation on lesion detectability in step-and-shoot mode and continuous mode digital tomosynthesis systems with anatomical background

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