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Updated: Jul 11, 2026
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Published on: September 11, 2011
[Effect on image data resampling in evaluation of the basic imaging properties for a digital radiographic system
Reiji Katayama1, Shinji Sakai, Junji Morishita
1Center for Diagnostic Imaging, Kurume University Hospital.
Nihon Hoshasen Gijutsu Gakkai Zasshi
|October 6, 2007
Summary
Image data resampling significantly alters digital radiography system evaluations. For accurate assessment of inherent imaging properties, use DICOM images without resampling.
Area of Science:
- Medical Physics
- Radiological Imaging Technology
Context:
- Digital radiographic systems utilize flat panel detectors (FPDs) for image acquisition.
- Accurate evaluation of basic imaging properties is crucial for system performance assessment.
Purpose:
- To investigate the impact of image data resampling on the evaluation of basic imaging properties of a direct-conversion amorphous selenium FPD-based digital radiographic system.
Summary:
- Characteristic curves remained unaffected by resampling.
- Resampling altered the presampled modulation transfer function (MTF) and Wiener spectrum (WS), deviating from inherent properties.
- These alterations were particularly pronounced in MTF measurements.
Impact:
- Resampling effects must be considered during the evaluation of digital radiographic systems.
- Using non-resampled DICOM images is mandatory for determining the inherent basic imaging properties of these systems.
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