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

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Abstract

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.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Radiologi och bildbehandling

Nyckelord

Originalspråkengelska
Titel på värdpublikationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
FörlagSPIE
SidorU1379-U1386
Volym6510
StatusPublished - 2007
PublikationskategoriForskning
Peer review utfördJa
EvenemangMedical Imaging 2007: Physics of Medical Imaging - San Diego, CA, USA
Varaktighet: 2007 feb 182007 feb 22

Publikationsserier

Namn
NummerPART 2
Volym6510
ISSN (tryckt)1605-7422
ISSN (elektroniskt)1042-4687

Konferens

KonferensMedical Imaging 2007: Physics of Medical Imaging
LandUSA
OrtSan Diego, CA
Period2007/02/182007/02/22