Related Experiment Video
Updated: May 10, 2026
15:48
Tracking the Mammary Architectural Features and Detecting Breast Cancer with Magnetic Resonance Diffusion Tensor Imaging
Published on: December 15, 2014
22.5K
Typical values of z-resolution for different Digital Breast Tomosynthesis systems evaluated in a multicenter study
S Dalmonte1, P Golinelli2, N Oberhofer3
1Medical Physics Specialization School, University of Bologna, Bologna, Italy; Medical Physics Unit, AUSL Romagna, Ravenna, Italy.
Summary
This study established typical z-resolution values for digital breast tomosynthesis (DBT) systems. These findings provide essential references for quality control (QC) in medical imaging, improving diagnostic accuracy.
Area of Science:
- Medical Physics
- Radiological Imaging
Background:
- Digital Breast Tomosynthesis (DBT) is crucial for breast cancer screening.
- Standardized quality control (QC) protocols for DBT z-resolution are lacking.
Purpose of the Study:
- To define typical z-resolution values for various DBT models.
- To establish a reference for quality control (QC) in DBT imaging.
Main Methods:
- Analyzed the artifact spread function (ASF) using full width at half maximum (FWHM).
- Evaluated five commercial phantoms across 82 DBT systems from 6 vendors in Italy.
Main Results:
- Z-resolution (ASF) depends on detail size, acquisition angle, and reconstruction algorithms.
- Increased signal spread observed with larger details and smaller acquisition angles.
Conclusions:
- Identified typical z-resolution values for different DBT model-phantom configurations.
- These values can serve as a reference for DBT quality control programs.
