Observer detection limits for a dedicated SPECT breast imaging system

An observer-based contrast-detail study is performed in an effort to evaluate the limits of object detectability using a dedicated CZT-based breast SPECT imaging system under various imaging conditions. A custom geometric contrast-resolution phantom was developed that can be used for both positive (...

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Bibliographic Details
Published in:Physics in medicine & biology 2010-04, Vol.55 (7), p.1903-1916
Main Authors: Cutler, S J, Perez, K L, Barnhart, H X, Tornai, M P
Format: Article
Language:English
Subjects:
Algorithms
Breast - diagnostic imaging
Breast Neoplasms - diagnostic imaging
Female
Humans
Image Enhancement - methods
Image Interpretation, Computer-Assisted - methods
Imaging, Three-Dimensional - methods
Observer Variation
Phantoms, Imaging
Reproducibility of Results
Sensitivity and Specificity
Tomography, Emission-Computed, Single-Photon - instrumentation
Tomography, Emission-Computed, Single-Photon - methods
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Description
Summary:An observer-based contrast-detail study is performed in an effort to evaluate the limits of object detectability using a dedicated CZT-based breast SPECT imaging system under various imaging conditions. A custom geometric contrast-resolution phantom was developed that can be used for both positive ('hot') and negative contrasts ('cold'). The 3 cm long fillable tubes are arranged in six sectors having equal inner diameters ranging from 1 mm to 6 mm with plastic wall thicknesses of
ISSN:0031-9155
1361-6560
DOI:10.1088/0031-9155/55/7/008