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Title: Visibility of simulated microcalcifications--A hardcopy-based comparison of three mammographic systems

Abstract

Full-field digital mammography systems are currently available for clinical use. These digital systems offer improved image quality, flexible image processing, display, storage, retrieval, and transmission. These systems employ a variety of different x-ray detectors based on storage phosphors (in computed radiography), charge-coupled devices (CCDs), or amorphous silicon flat panels (FPs). The objective of this study is to compare three different types of mammographic detectors: screen-film (SF) combination, a CsI-based FP detector, a CCD and x-ray phosphor-based detector for their performance in detection of simulated microcalcifications. Microcalcifications (MCs) were simulated with calcium carbonate grains of various sizes (90-355 {mu}m). They were overlapped with a slab of simulated 50% adipose/50% glandular breast tissue for a uniform background or an anthropomorphic breast phantom for a tissue structure background. Images of the phantoms, acquired with and without magnification, were reviewed by mammographers, physicists, and students. A five-point confidence level rating was given for each MC reviewed. Average ratings from the mammographers were used to compare the performances of the three imaging systems, various MC size groups, and two magnification modes. The results indicate that with uniform background and no magnification, the FP system performed the best while the SF system did slightly better thanmore » the CCD system. With magnification added, all detection tasks were improved except for the smallest and largest one or two size groups. In particular, detection in the SF and CCD images was significantly improved over that in the FP images. With tissue structure background and no magnification, the FP system was outperformed by the SF and the CCD systems. With magnification added, the performance of the FP and the CCD systems was improved significantly. With this improvement, the SF and FP systems were outperformed by the CCD system.« less

Authors:
; ; ; ; ; ; ; ;  [1]
  1. Department of Imaging Physics, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009 (United States)
Publication Date:
OSTI Identifier:
20634621
Resource Type:
Journal Article
Journal Name:
Medical Physics
Additional Journal Information:
Journal Volume: 32; Journal Issue: 1; Other Information: DOI: 10.1118/1.1833011; (c) 2005 American Association of Physicists in Medicine; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-2405
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; BIOMEDICAL RADIOGRAPHY; CALCIUM CARBONATES; CARCINOMAS; DIGITAL SYSTEMS; IMAGE PROCESSING; IMAGES; MAMMARY GLANDS; PERFORMANCE; PHANTOMS; PHOSPHORS; SEMICONDUCTOR MATERIALS; SILICON; SLABS; X-RAY DETECTION

Citation Formats

Lai, C -J, Shaw, Chris C, Whitman, Gary J, Johnston, Dennis A, Yang, Wei T, Selinko, Veronica, Arribas, Elsa, Dogan, Basak, Kappadath, S Cheenu, Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, Department of Biomathematics, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, and Department of Imaging Physics, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009. Visibility of simulated microcalcifications--A hardcopy-based comparison of three mammographic systems. United States: N. p., 2005. Web. doi:10.1118/1.1833011.
Lai, C -J, Shaw, Chris C, Whitman, Gary J, Johnston, Dennis A, Yang, Wei T, Selinko, Veronica, Arribas, Elsa, Dogan, Basak, Kappadath, S Cheenu, Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, Department of Biomathematics, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, & Department of Imaging Physics, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009. Visibility of simulated microcalcifications--A hardcopy-based comparison of three mammographic systems. United States. doi:10.1118/1.1833011.
Lai, C -J, Shaw, Chris C, Whitman, Gary J, Johnston, Dennis A, Yang, Wei T, Selinko, Veronica, Arribas, Elsa, Dogan, Basak, Kappadath, S Cheenu, Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, Department of Biomathematics, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, and Department of Imaging Physics, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009. Sat . "Visibility of simulated microcalcifications--A hardcopy-based comparison of three mammographic systems". United States. doi:10.1118/1.1833011.
@article{osti_20634621,
title = {Visibility of simulated microcalcifications--A hardcopy-based comparison of three mammographic systems},
author = {Lai, C -J and Shaw, Chris C and Whitman, Gary J and Johnston, Dennis A and Yang, Wei T and Selinko, Veronica and Arribas, Elsa and Dogan, Basak and Kappadath, S Cheenu and Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009 and Department of Biomathematics, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009 and Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009 and Department of Imaging Physics, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009},
abstractNote = {Full-field digital mammography systems are currently available for clinical use. These digital systems offer improved image quality, flexible image processing, display, storage, retrieval, and transmission. These systems employ a variety of different x-ray detectors based on storage phosphors (in computed radiography), charge-coupled devices (CCDs), or amorphous silicon flat panels (FPs). The objective of this study is to compare three different types of mammographic detectors: screen-film (SF) combination, a CsI-based FP detector, a CCD and x-ray phosphor-based detector for their performance in detection of simulated microcalcifications. Microcalcifications (MCs) were simulated with calcium carbonate grains of various sizes (90-355 {mu}m). They were overlapped with a slab of simulated 50% adipose/50% glandular breast tissue for a uniform background or an anthropomorphic breast phantom for a tissue structure background. Images of the phantoms, acquired with and without magnification, were reviewed by mammographers, physicists, and students. A five-point confidence level rating was given for each MC reviewed. Average ratings from the mammographers were used to compare the performances of the three imaging systems, various MC size groups, and two magnification modes. The results indicate that with uniform background and no magnification, the FP system performed the best while the SF system did slightly better than the CCD system. With magnification added, all detection tasks were improved except for the smallest and largest one or two size groups. In particular, detection in the SF and CCD images was significantly improved over that in the FP images. With tissue structure background and no magnification, the FP system was outperformed by the SF and the CCD systems. With magnification added, the performance of the FP and the CCD systems was improved significantly. With this improvement, the SF and FP systems were outperformed by the CCD system.},
doi = {10.1118/1.1833011},
journal = {Medical Physics},
issn = {0094-2405},
number = 1,
volume = 32,
place = {United States},
year = {2005},
month = {1}
}