Computed radiographic examinations of subtle bone pathology: implications for liquid crystal displays in radiology

William Pavlicek; Patrick Liu

doi:10.1117/12.424871

30 April 2001 Computed radiographic examinations of subtle bone pathology: implications for liquid crystal displays in radiology

William Pavlicek, Patrick Liu

Author Affiliations +

Proceedings Volume 4295, Flat Panel Display Technology and Display Metrology II; (2001) https://doi.org/10.1117/12.424871
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

Examinations of the skeletal system have historically used 'detail' x-ray film screen combinations having film-lightbox image quality that is challenging to replicate in a soft- copy environment. A review of the basic diagnostic imaging tasks for this sub-specialty is presented, including resolution and gray scale requirements for visualization of subtle fractures, bone mineral loss, implant loosening, and soft tissue disease. Measurements are made to specify image quality metrics in terms of Michelson contrast, spatial resolution, and dynamic range. Image contrast requirements are presented using Just Noticeable Differences values based on the NEMA and DICOM grayscale softcopy standard of Annex B, Part 14. Image dat is used to calculate modulation transfer function for a type of liquid crystal active matrix display being considered for clinical use.

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William Pavlicek and Patrick Liu "Computed radiographic examinations of subtle bone pathology: implications for liquid crystal displays in radiology", Proc. SPIE 4295, Flat Panel Display Technology and Display Metrology II, (30 April 2001); https://doi.org/10.1117/12.424871

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