Tear size and location impacts false lumen pressure in an ex vivo model of chronic type B aortic dissection Thomas T. Tsai, MD, Marty S. Schlicht, MS,

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Tear size and location impacts false lumen pressure in an ex vivo model of chronic type B aortic dissection Thomas T. Tsai, MD, Marty S. Schlicht, MS, Khalil Khanafer, PhD, Joseph L. Bull, PhD, Doug T. Valassis, BSE, David M. Williams, MD, Ramon Berguer, MD, PhD, Kim A. Eagle, MD Journal of Vascular Surgery Volume 47, Issue 4, Pages 844-851 (April 2008) DOI: 10.1016/j.jvs.2007.11.059 Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

Fig 1 A, Type B aortic dissection with a patent false lumen maintained by proximal and distal tears. B, Type B aortic dissection with partial thrombosis of the false lumen. The laminar thrombus can be seen occluding the distal tear. C, Type B aortic dissection with proximal stent graft and patent distal tear. Journal of Vascular Surgery 2008 47, 844-851DOI: (10.1016/j.jvs.2007.11.059) Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

Fig 2 Schematic of ex-vivo circulation. Journal of Vascular Surgery 2008 47, 844-851DOI: (10.1016/j.jvs.2007.11.059) Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

Fig 3 A, Photograph of dissection model. B, Photograph of dissection model in cross-section. TL, true lumen; FL, false lumen; a, true lumen wall thickness = 3 mm; b, dissection flap wall thickness = 2 mm; c, false lumen wall thickness = 1 mm. Journal of Vascular Surgery 2008 47, 844-851DOI: (10.1016/j.jvs.2007.11.059) Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

Fig 4 Dissection model configurations. Model A, Proximal and distal tear. Model B, Proximal tear only. Model C, Distal tear only. Journal of Vascular Surgery 2008 47, 844-851DOI: (10.1016/j.jvs.2007.11.059) Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

Fig 5 Pressure waveforms. A, Dissection model A with 6.4 mm proximal and 6.4 mm distal tear. B, Dissection model B with proximal 6.4 mm tear only. C, Dissection model C with 3.2 mm tear only. Journal of Vascular Surgery 2008 47, 844-851DOI: (10.1016/j.jvs.2007.11.059) Copyright © 2008 The Society for Vascular Surgery Terms and Conditions