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Portrait of Anders Tingberg. Photo

Anders Tingberg

Associate professor

Portrait of Anders Tingberg. Photo

Optimization of image quality in breast tomosynthesis using lumpectomy and mastectomy specimens

Author

  • Pontus Timberg
  • Mark Ruschin
  • Magnus Båth
  • Bengt Hemdal
  • Ingvar Andersson
  • Tony Svahn
  • Sören Mattsson
  • Anders Tingberg

Summary, in English

The purpose of this study was to determine how image quality in breast tomosynthesis (BT) is affected when acquisition modes are varied, using human breast specimens containing malignant tumors and/or microcalcifications. Images of thirty-one breast lumpectomy and mastectomy specimens were acquired on a BT prototype based on a Mammomat Novation (Siemens) full-field digital mammography system. BT image acquisitions of the same specimens were performed varying the number of projections, angular range, and detector signal collection mode (binned and non-binned in the scan direction). An enhanced filtered back projection reconstruction method was applied with constant settings of spectral and slice thickness filters. The quality of these images was evaluated via relative visual grading analysis (VGA) human observer performance experiments using image quality criteria. Results from the relative VGA study indicate that image quality increases with number of projections and angular range. A binned detector collecting mode results in less noise, but reduced resolution of structures. Human breast specimens seem to be suitable for comparing image sets in BT with image quality criteria.

Department/s

  • Medical Radiation Physics, Malmö
  • Department of Translational Medicine

Publishing year

2007

Language

English

Pages

1379-1386

Publication/Series

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

Volume

6510

Issue

PART 2

Document type

Conference paper

Publisher

SPIE

Topic

  • Radiology, Nuclear Medicine and Medical Imaging

Keywords

  • Digital mammography systems
  • Breast tomosynthesis (BT)
  • Visual grading analysis (VGA)

Conference name

Medical Imaging 2007: Physics of Medical Imaging

Conference date

2007-02-18 - 2007-02-22

Conference place

San Diego, CA, United States

Status

Published

Research group

  • Medical Radiation Physics, Malmö

ISBN/ISSN/Other

  • ISSN: 1605-7422
  • ISSN: 1042-4687