Presentation is loading. Please wait.

Presentation is loading. Please wait.

Ali N. Azadani, PhD, Sam Chitsaz, MD, Peter B

Published byAntonin Brousseau Modified over 5 years ago

Similar presentations

Presentation on theme: "Ali N. Azadani, PhD, Sam Chitsaz, MD, Peter B"— Presentation transcript:

1 Comparison of Mechanical Properties of Human Ascending Aorta and Aortic Sinuses 
Ali N. Azadani, PhD, Sam Chitsaz, MD, Peter B. Matthews, MS, Nicolas Jaussaud, MD, James Leung, MS, Tonia Tsinman, BS, Liang Ge, PhD, Elaine E. Tseng, MD  The Annals of Thoracic Surgery  Volume 93, Issue 1, Pages (January 2012) DOI: /j.athoracsur Copyright © 2012 The Society of Thoracic Surgeons Terms and Conditions

2 Fig 1 Custom-built biaxial stretcher used in the experiments.
The Annals of Thoracic Surgery  , 87-94DOI: ( /j.athoracsur ) Copyright © 2012 The Society of Thoracic Surgeons Terms and Conditions

3 Fig 2 Equibiaxial stretch data from the ascending aorta in the (A) circumferential direction and (B) longitudinal direction. Equibiaxial stretch data from the aortic sinus in the (C) circumferential direction and (D) longitudinal direction. Each geometric shape represents the experimental raw data obtained from a different human aortic root. The Annals of Thoracic Surgery  , 87-94DOI: ( /j.athoracsur ) Copyright © 2012 The Society of Thoracic Surgeons Terms and Conditions

4 Fig 3 Composite curves for the ascending aorta (light gray line) and aortic sinus (dark gray line) in the (A) circumferential direction and (B) longitudinal direction. Each curve is constructed using the average value of coefficients to the strain energy function. The Annals of Thoracic Surgery  , 87-94DOI: ( /j.athoracsur ) Copyright © 2012 The Society of Thoracic Surgeons Terms and Conditions

5 Fig 4 Comparisons of tissue stiffness for the ascending aorta and aortic sinus at (A) 72.8 kPa and (B) 120 kPa. (AA = ascending aorta; LC = left coronary; NC = noncoronary; RC = right coronary; Dark gray bars = circumferential; light gray bars = longitudinal.) The Annals of Thoracic Surgery  , 87-94DOI: ( /j.athoracsur ) Copyright © 2012 The Society of Thoracic Surgeons Terms and Conditions

6 Fig 5 Age dependence of ascending aorta (dark gray solid line = circumferential; light gray solid line = longitudinal) and aortic sinuses (dark gray dashed line = circumferential; light gray dashed line = longitudinal) tissue stiffness at physiologic stress level, 72 kPa and 120 kPa, respectively. Power trendlines were fitted to the experimental data. The Annals of Thoracic Surgery  , 87-94DOI: ( /j.athoracsur ) Copyright © 2012 The Society of Thoracic Surgeons Terms and Conditions

7 Fig 6 Histologic sections of human ascending aorta and aortic sinuses: (A) elastin-stained ascending aorta, (B) elastin-stained sinus, (C) sirius red-stained ascending aorta, and (D) sirius red-stained aortic sinus. Elastin (black), collagen fibers (red/pink), and smooth muscle (green); adventitia on top. Scale bar = 250 micrometers. The Annals of Thoracic Surgery  , 87-94DOI: ( /j.athoracsur ) Copyright © 2012 The Society of Thoracic Surgeons Terms and Conditions

Download ppt "Ali N. Azadani, PhD, Sam Chitsaz, MD, Peter B"

Similar presentations

Ali N. Azadani, PhD, Nicolas Jaussaud, MD, Peter B

Ali N. Azadani, PhD, Nicolas Jaussaud, MD, Peter B
Aortic Root Biomechanics After Sleeve and David Sparing Techniques: A Finite Element Analysis  Giordano Tasca, MD, Matteo Selmi, MS, Emiliano Votta, PhD,

Aortic Root Biomechanics After Sleeve and David Sparing Techniques: A Finite Element Analysis  Giordano Tasca, MD, Matteo Selmi, MS, Emiliano Votta, PhD,
The STS National Database

The STS National Database
Chang M. He, MSc, Margot R. Roach, MD, PhD  Journal of Vascular Surgery 

Chang M. He, MSc, Margot R. Roach, MD, PhD  Journal of Vascular Surgery 
A Comparison of Mechanical Properties of Materials Used in Aortic Arch Reconstruction  Dominique Tremblay, MASc, Tiffany Zigras, MEng, Raymond Cartier,

A Comparison of Mechanical Properties of Materials Used in Aortic Arch Reconstruction  Dominique Tremblay, MASc, Tiffany Zigras, MEng, Raymond Cartier,
Perforation of the Valsalva Sinus After Implantation of Medtronic Freestyle Aortic Bioprosthesis  Nobuchika Ozaki, MD, Yutaka Hino, MD, Yuji Hanafusa,

Perforation of the Valsalva Sinus After Implantation of Medtronic Freestyle Aortic Bioprosthesis  Nobuchika Ozaki, MD, Yutaka Hino, MD, Yuji Hanafusa,
Niv Ad, MD, Linda Henry, PhD, Sharon Hunt, MBA, Sari D. Holmes, PhD 

Niv Ad, MD, Linda Henry, PhD, Sharon Hunt, MBA, Sari D. Holmes, PhD 
Sutureless Perceval Aortic Valve Replacement: Results of Two European Centers  Thierry A. Folliguet, MD, François Laborde, MD, Konstantinos Zannis, MD,

Sutureless Perceval Aortic Valve Replacement: Results of Two European Centers  Thierry A. Folliguet, MD, François Laborde, MD, Konstantinos Zannis, MD,
Aortic Root Biomechanics After Sleeve and David Sparing Techniques: A Finite Element Analysis  Giordano Tasca, MD, Matteo Selmi, MS, Emiliano Votta, PhD,

Aortic Root Biomechanics After Sleeve and David Sparing Techniques: A Finite Element Analysis  Giordano Tasca, MD, Matteo Selmi, MS, Emiliano Votta, PhD,
Biomechanics of Failed Pulmonary Autografts Compared to Native Aortic Roots  Aart Mookhoek, MD, Kapil Krishnan, PhD, Sam Chitsaz, MD, PhD, Heide Kuang,

Biomechanics of Failed Pulmonary Autografts Compared to Native Aortic Roots  Aart Mookhoek, MD, Kapil Krishnan, PhD, Sam Chitsaz, MD, PhD, Heide Kuang,
Comparison of EuroSCORE II, Original EuroSCORE, and The Society of Thoracic Surgeons Risk Score in Cardiac Surgery Patients  Niv Ad, MD, Sari D. Holmes,

Comparison of EuroSCORE II, Original EuroSCORE, and The Society of Thoracic Surgeons Risk Score in Cardiac Surgery Patients  Niv Ad, MD, Sari D. Holmes,
PC222. Loss of Normal Fiber Orientation in Human Abdominal Aortic Aneurysmal Tissue and Increased Energy Loss  Sandra Toth, BS, Doran Mix, MD, BS, Ibrahima.

PC222. Loss of Normal Fiber Orientation in Human Abdominal Aortic Aneurysmal Tissue and Increased Energy Loss  Sandra Toth, BS, Doran Mix, MD, BS, Ibrahima.
Surgical Anatomy of the Aortic Annulus: Landmarks for External Annuloplasty in Aortic Valve Repair  Nizar Khelil, MD, Ghassan Sleilaty, MD, Michele Palladino,

Surgical Anatomy of the Aortic Annulus: Landmarks for External Annuloplasty in Aortic Valve Repair  Nizar Khelil, MD, Ghassan Sleilaty, MD, Michele Palladino,
Suresh Keshavamurthy, MD, Stephanie L

Suresh Keshavamurthy, MD, Stephanie L
Biomechanical Properties of the Thoracic Aneurysmal Wall: Differences Between Bicuspid Aortic Valve and Tricuspid Aortic Valve Patients  Caroline Forsell,

Biomechanical Properties of the Thoracic Aneurysmal Wall: Differences Between Bicuspid Aortic Valve and Tricuspid Aortic Valve Patients  Caroline Forsell,
Loretta Erhunmwunsee, MD, Brian C

Loretta Erhunmwunsee, MD, Brian C
Jennifer Ritchie, MS, James N. Warnock, PhD, Ajit P. Yoganathan, PhD 

Jennifer Ritchie, MS, James N. Warnock, PhD, Ajit P. Yoganathan, PhD 
New Technique of Aortic Root Reconstruction With Aortic Valve Annuloplasty in Ascending Aortic Aneurysm  Akhtar Rama, MD, Sylvain Rubin, MD, Nicolas Bonnet,

New Technique of Aortic Root Reconstruction With Aortic Valve Annuloplasty in Ascending Aortic Aneurysm  Akhtar Rama, MD, Sylvain Rubin, MD, Nicolas Bonnet,
Chronic Atrial Fibrillation Is Associated With Reduced Survival After Aortic and Double Valve Replacement  Richard Schulenberg, MD, Polychronis Antonitsis,

Chronic Atrial Fibrillation Is Associated With Reduced Survival After Aortic and Double Valve Replacement  Richard Schulenberg, MD, Polychronis Antonitsis,
Differential Tensile Strength and Collagen Composition in Ascending Aortic Aneurysms by Aortic Valve Phenotype  Joseph E. Pichamuthu, MS, Julie A. Phillippi,

Differential Tensile Strength and Collagen Composition in Ascending Aortic Aneurysms by Aortic Valve Phenotype  Joseph E. Pichamuthu, MS, Julie A. Phillippi,

Similar presentations

Ads by Google