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The Development of EERA: Software for Assessing Rheumatic Joint Erosions  Patrick D. Emond, BSc, MSc, Abram Choi, BSc, MD, John O'Neill, MB, BAO, BCh,

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Presentation on theme: "The Development of EERA: Software for Assessing Rheumatic Joint Erosions  Patrick D. Emond, BSc, MSc, Abram Choi, BSc, MD, John O'Neill, MB, BAO, BCh,"— Presentation transcript:

1 The Development of EERA: Software for Assessing Rheumatic Joint Erosions 
Patrick D. Emond, BSc, MSc, Abram Choi, BSc, MD, John O'Neill, MB, BAO, BCh, FRCR, MRCPI, MSc, Jason Xie, MBSc, MSc, Rick Adachi, MD, FRCPC, Chris L. Gordon, MSc, PhD  Canadian Association of Radiologists Journal  Volume 60, Issue 2, Pages (April 2009) DOI: /j.carj Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

2 Figure 1 Screen shot of the EERA user interface. It is divided into 6 sections known as widgets. Each section is labeled accordingly. Canadian Association of Radiologists Journal  , 63-68DOI: ( /j.carj ) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

3 Figure 2 The 8 sites scored by both readers including the second to fifth metacarpal heads and phalangeal bases. Canadian Association of Radiologists Journal  , 63-68DOI: ( /j.carj ) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

4 Figure 3 (A) An erosion in the second metacarpal, which is not visible because of the viewing angle. (B) The same erosion as in panel A, made visible at a different viewing angle. (C) A hidden erosion surrounded by bone in the third metacarpal. (D) The same erosion as in panel C, made visible by visualizing the bone outline. Erosions are denoted by white arrows. Canadian Association of Radiologists Journal  , 63-68DOI: ( /j.carj ) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

5 Figure 4 Weighted kappa values for the second to fifth metacarpal head (mch) and second phalangeal base (pb). Comparisons between R1 and R2 using only traditional MRI slices are in grey, and between R1 using the traditional MRI slices, and R2 using the traditional MRI slices in conjunction with the EERA software. Canadian Association of Radiologists Journal  , 63-68DOI: ( /j.carj ) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

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