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Sources of error in the measurement of aortic diameter in computed tomography scans  Juan Parodi, MD, Ramon Berguer, MD, PhD, Patricia Carrascosa, MD,

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Presentation on theme: "Sources of error in the measurement of aortic diameter in computed tomography scans  Juan Parodi, MD, Ramon Berguer, MD, PhD, Patricia Carrascosa, MD,"— Presentation transcript:

1 Sources of error in the measurement of aortic diameter in computed tomography scans 
Juan Parodi, MD, Ramon Berguer, MD, PhD, Patricia Carrascosa, MD, PhD, Khalil Khanafer, PhD, Carlos Capunay, MD, Eric Wizauer  Journal of Vascular Surgery  Volume 59, Issue 1, Pages (January 2014) DOI: /j.jvs Copyright © 2014 Society for Vascular Surgery Terms and Conditions

2 Fig 1 Percentage change in the transverse (DT) and anteroposterior (DAP) diameter measurements of the thoracic aorta between systole and diastole on gated scans at (a) 1 cm, (b) 4 cm, and (c) 8 cm from the left subclavian artery. Q, Quartile; STDEV, standard deviation. Journal of Vascular Surgery  , 74-79DOI: ( /j.jvs ) Copyright © 2014 Society for Vascular Surgery Terms and Conditions

3 Fig 2 Difference between transverse (DT) and anteroposterior (DAP) measurements of thoracic diameter on gated scans at (a) 1 cm, (b) 4 cm, and (c) 8 cm from left subclavian artery. Q, Quartile; STDEV, standard deviation. Journal of Vascular Surgery  , 74-79DOI: ( /j.jvs ) Copyright © 2014 Society for Vascular Surgery Terms and Conditions

4 Fig 3 Absolute difference between transverse diameter (DT) and the diameter based on lumen area (Dlumen) on gated scans in systole and diastole at (a) 1 cm, (b) 4 cm, and (c) 8 cm from the left subclavian artery. Q, Quartile; STDEV, standard deviation. Journal of Vascular Surgery  , 74-79DOI: ( /j.jvs ) Copyright © 2014 Society for Vascular Surgery Terms and Conditions

5 Fig 4 Comparison of the image quality, emphasizing irregular outlines, between (left) nongated and (right) gated scans. Journal of Vascular Surgery  , 74-79DOI: ( /j.jvs ) Copyright © 2014 Society for Vascular Surgery Terms and Conditions


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