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Development of a Computer Model to Predict Aortic Rupture Due to Impact Loading
Published November 01, 2001 by The Stapp Association in United States
Annotation ability available
Event: STAPP Car Crash Conference
Aortic injuries during blunt thoracic impacts can lead to life threatening hemorrhagic shock and potential exsanguination. Experimental approaches designed to study the mechanism of aortic rupture such as the testing of cadavers is not only expensive and time consuming, but has also been relatively unsuccessful. The objective of this study was to develop a computer model and to use it to predict modes of loading that are most likely to produce aortic ruptures. Previously, a 3D finite element model of the human thorax was developed and validated against data obtained from lateral pendulum tests. The model included a detailed description of the heart, lungs, rib cage, sternum, spine, diaphragm, major blood vessels and intercostal muscles. However, the aorta was modeled as a hollow tube using shell elements with no fluid within, and its material properties were assumed to be linear and isotropic. In this study fluid elements representing blood have been incorporated into the model in order to simulate pressure changes inside the aorta due to impact. The current model was globally validated against experimental data published in the literature for both frontal and lateral pendulum impact tests. Simulations of the validated model for thoracic impacts from a number of directions indicate that the ligamentum arteriosum, subclavian artery, parietal pleura and pressure changes within the aorta are factors that could influence aortic rupture. The model suggests that a right-sided impact to the chest is potentially more hazardous with respect to aortic rupture than any other impact direction simulated in this study. The aortic isthmus was the most likely site of aortic rupture regardless of impact direction. The reader is cautioned that this model could only be validated on a global scale. Validation of the kinematics and dynamics of the aorta at the local level could not be done due to a lack of experimental data. It is hoped that this model will be used to design experiments that can reproduce field relevant aortic ruptures in the laboratory. Only after such experiments have been run, can local validation be examined and the model judged to be acceptable or unacceptable.
- Chirag S. Shah - Bioengineering Center, Wayne State University, Detroit, MI
- King H. Yang - Bioengineering Center, Wayne State University, Detroit, MI
- Warren Hardy - Bioengineering Center, Wayne State University, Detroit, MI
- H. Kevin Wang - Bioengineering Center, Wayne State University, Detroit, MI
- Albert I. King - Bioengineering Center, Wayne State University, Detroit, MI
CitationShah, C., Yang, K., Hardy, W., Wang, H. et al., "Development of a Computer Model to Predict Aortic Rupture Due to Impact Loading," SAE Technical Paper 2001-22-0007, 2001, https://doi.org/10.4271/2001-22-0007.
- Augenstein, J.S., Perdeck, E., Williamson, J., Stratton, J., Murtha, M., Sapnas, K., Digges, K., Malliaris, A.C. and Lombardo, L. (1997) Heart injuries among restrained occupants in frontal crashes. Proc. 41st Stapp Car Crash Conference, SAE Paper No. 970392, pp. 169–175.
- Ben-Menachem, Y. (1993) Rupture of the thoracic aorta by broadside impacts in road traffic and other collisions: further angiographic observations and preliminary autopsy findings. Journal of Trauma 35(3): 363–367.
- Cammack, K., Rapport, R.L., Paul, J. and Baird, W.C. (1959) Deceleration injuries of the Thoracic Aorta. A.M.A. Archives of Surgery 79: 244–251.
- Carson, M.W. and Roach, M.R. (1990) The strength of the aortic media and its role in the propagation of aortic dissection. Journal of Biomechanics 22(6): 579–588.
- Cavanaugh, J.M., Walilko, T.J., Malhotra, Y., Zhu, Y. and King, A.I. (1990) Biomechanical Response and Injury Tolerance of the Thorax in Twelve Sled Side Impacts. 34th Stapp Car Crash Conference, pp. 23–38. SAE Paper No. 902307.
- Cavanaugh, J.M., Zhu, Y., Huang, Y. and King, A.I. (1993) Injury and Response of the Thorax in Side Impact Cadaveric Tests. 37th Stapp Car Crash Conference, pp. 199–221. SAE Paper No. 933127.
- Chen, P.H. (1978) Finite Element Dynamic Structural Model of the Human Thorax for Chest Impact Response and Injury Studies. Aviation Space and Enviromental Medicine 49(1): 143–149.
- Chuong, C.J. and Fung, Y.C. (1986) Residual stress in arteries. In Frontiers in Biomechanics, pp. 117–129. Springer-Verlag, New York.
- Coermann, R., Dotzauer, G., Lange, W. and Voigt, G.E. (1972) The effects of the design of the steering assembly and the instrument panel on injuries (especially aortic rupture) sustained by car drivers in head-on collision. Journal of Trauma 12(8): 715–724.
- Crass, J.R., Cohen, A.M., Motta, A.O., Tomashefski, J.F.Jr. and Wiesen, E.J. (1990) A proposed new mechanism of traumatic aortic rupture: the osseous pinch. Radiology 176(3): 645–649.
- Dischinger, P.C., Cowley, R.A., Shanker, B.S. and Smialek, J.E. (1988) The incidence of ruptured aorta among vehicular fatalities. Proc. 32nd Association for the Advancement of Automotive Medicine Conference, pp. 15–23.
- Eppinger, R.H. (1989) On the Development of a Deformation Measurement System and Its Application Toward Developing Mechanically Based Injury Indices. Proc. 33rd Stapp Car Crash Conference, pp. 21–28. SAE Paper No. 892426.
- Fung, Y.C. (1993) Biomechanics: Mechanical Properties of Living Tissue. Sec. Ed., Springer-Verlag, New York.
- Gardner, E., Gray, D.J. and O’Rahilly, R. (1960) Anatomy. W.B. Saunders Co., Philadelphia, PA.
- Greendyke, R.M. (1966) Traumatic rupture of the aorta. Special reference to automobile accidents. Journal of American Medical Association 195(7): 119–122.
- Hallquist, J.O. (1998) LS-DYNA Theoretical Manual. Livermore Software Technology Corp., CA.
- Hanson, P.G. (1967) Cardiac displacement and thoracic vascular injury resulting from abrupt deceleration of dogs. Aerospce Medicine 38: 1259–1263.
- Hass, G.M. (1944) Types of internal injuries of personnel involved in aircraft accidents. Journal of Aviation Medicine 15: 77–84.
- Hossack, D.W. (1980) Rupture of the aorta in road crash victims. Aust. NZ J. Surg. 50: (2)136–137.
- Hunt, J.P., Baker, C.C., Lentz, C.W., Rutledge, R.R., Oller, D.W., Flowe, K.M., Nayduch, D.A., Smith, C., Clancy, T.V., Thomason, M.H. and Meredith, J.W. (1996) Thoracic aorta injuries: Management and outcome of 144 patients. Journal of Trauma 40(4): 547–556.
- Jackson, F., Berkas, E.M. and Roberts, V.L. (1967) Traumatic Aortic Rupture after Blunt Trauma. Diseases of the Chest 53(5): 577–583.
- Kallieris, D., Stein, K.M., Mattern, R., Morgan, R. and Eppinger, R.H. (1994) The performance of Active and Passive Driver Restraint Systems in Simulated Frontal Collisions. Proc. 38th Stapp Car Crash Conference, pp. 165–175. SAE Paper No. 942216.
- Kallieris, D., Rizzetti, A., Mattern, R., Morgan, R., Eppinger, R. and Keenan, L. (1995) On the Synergism of the Driver Air Bag and the 3-Point Belt in Frontal Collisions. Proc. 39th Stapp Car Crash Conference, pp. 389–401. SAE Paper No. 952700.
- Katyal, D., McLellan, B.A., Brenneman, F.D., Boulanger, B.R., Sharkey, P.W. and Waddell, J.P. (1997) Lateral impact motor vehicle collisions: Significant cause of blunt traumatic rupture of the thoracic aorta. Journal of Trauma 42(5): 769–772.
- Kirsh, M., Bosio, A.C., Nusholtz, G.S. and Kaiker, P.S. (1985) Thoracic response to frontal impact. Proc. 29th Stapp Car Crash Conference. SAE Paper No.851721.
- Kirshner, R., Seltzer, S., D’Orsi, C. and DeWeese, J.A. (1983) Upper rib fractures and mediastinal widening: indications for aortography. Annals of Thoracic Surgery 35(4): 450–454.
- Klotz, O. and Simpson, W. (1932) Spontaneous Rupture of the Aorta. American Journal of Medical Science 184: 455–473.
- Kroell, C.K., Schneider, D.C. and Nahum, A.M. (1971) Impact Tolerance and Response of the Human Thorax. Proc. 15th Stapp Car Crash Conference, pp. 84–134.
- Kroell, C.K., Schneider, D.C. and Nahum, A.M. (1974) Impact Tolerance and Response of the Human Thorax II. Proc. 18th Stapp Car Crash Conference. SAE Paper No.741187.
- Kroell, C.K. (1976) Thoracic response to blunt frontal loading. The Human Thorax Anatomy: Injury and Biomechanics, P-67, SAE, Inc., pp. 49–78.
- Lacquet, L.K., Kuijpers, P.J., Van Lent, D., Lissen, G.H. and Sutherland, I. (1974) Traumatic rupture of the aorta isthmus after blunt chest trauma. Journal of Cardiovascular Surgery 15: 537–547.
- Lansman, S.L., McCullough, J.N., Nguyen, K.H., Spielvogel, D., Klein, J.J., Galla, J.D., Ergin, M.A. and Griepp, R.B. (1999) Subtypes of acute aortic dissection. Annals of Thoracic Surgery 67(6): 1975–1978.
- Letterer, E. (1924) Beitrage zur entstehung der aortenruptur an typischer stele. Virch. Arch. Path. Anat. 253: 534–544.
- Lobdell, T.E., Kroell, C.K., Schneider, D.C., Hering, W.E. and Nahum, A.M. (1973) Impact Response of the Human Thorax. Human Impact Response Measurement and Simulation, ed. King W.F. and Mertz, H.J. pp. 201–245. Plenum Press, London.
- Lundevall, J. (1964) The Mechanism of Traumatic Rupture of the Aorta. Acta Path. Microbiol. Scand. 62: 34–46.
- Marshall, T.K. (1958) Traumatic dissecting aneurysms. Journal of Clinical Pathology II: 36–38.
- Moffat, R.C., Roberts, V.L. and Berkas, E.M. (1966) Blunt trauma to the thorax: development of pseudo-aneurysms in the dog. Journal of Trauma 6: 666–680.
- Mohan, D. and Melvin, J. (1982) Failure Properties of Passive Human Aortic Tissue I-Uniaxial Tension Tests. Journal of Biomechanics 15, pp. 887–902.
- Mohan, D. and Melvin, J. (1983) Failure Properties of Passive Human Aortic Tissue II-Biaxial Tension Tests. Journal of Biomechanics 16, pp. 31–44.
- Nahum, A.M., Gadd, C.W., Schneider, D.C. and Kroell, C.K. (1970) Deflection of the Human Thorax Under Sternal Impact. International Automobile Safety Conference Compendium, P-30. SAE Paper No.700400.
- Neathery, R.F. (1974) Analysis of Chest Impact Response Data and Scaled Performance Recommendations. Proc. 18th Stapp Car Crash Conference. SAE Paper No.741188.
- Newman, R.J. and Rastogi, S. (1984) Rupture of the thoracic aorta and its relationship to road traffic accident characterists. Injury 15: 296–299.
- Oppenheim, F. (1918) Gibt es eine spontanrupter der gesunden aorta und wie kommt sie zustande. Münchener Medizinische Wochenschrift 65: 1234–1237.
- Parmley, L.F., Mattingly, T., Manion, W.C. and Jahnke, E.J.Jr. (1958) Nonpenetrating Traumatic Injury of the Aorta. Circulation 17: 1086–1101.
- Plank, G.R. and Eppinger, R.H. (1989) Computer Dynamic Response of the Human Thorax from a Finite Element Model. 12th ESV, pp. 665–672.
- Plank, G.R. and Eppinger, R.H. (1991) An Improved Finite Element Model of the Human Thorax. 13th ESV, pp. 902–907.
- Rindfleisch, E. (1893) Zur entstehung and heilung des aneurysma dissecans aortae. Virch. Arch. Path. Anat. 131: 374–378.
- Roberts, V.L., Jackson, F.R. and Berkas, E.M. (1966) Heart motion due to blunt trauma to the thorax. Proc. 10th Stapp Car Crash Conference, pp. 242–248. SAE Paper No. 660800.
- Sevitt, S. (1977) The mechanisms of traumatic rupture of the thoracic aorta. British Journal of Surgery 64: 166–173.
- Shatsky, S.A. (1973) Flash x-ray cinematography during impact injury. Proc. 17th Stapp Car Crash Conference, pp. 361–377. SAE Paper No. 730978.
- Shatsky, S.A., Alter, W.A.III , Evans, D.E., Armbrustmacher, V., Earle, K.M. and Clark, G. (1974) Traumatic distortions of the primate head and chest: Correlation of bimechanical, radiological and pathological data. Proc. 18th Stapp Car Crash Conference, pp. 351–381. SAE Paper No. 741186.
- Shennan, T. (1929) Traumatic (false) aneurysm of the aorta. J. Path. Bact. 32: 795–798.
- Smith, R.S. and Chang, F.C. (1986) Traumatic Rupture of the Aorta: Still a lethal injury. American Journal of Surgery 152: 660–663.
- Solomon, E.P. and Phillips, G.A. (1987) Understanding Human Anatomy and Physiology. Saunders, Philadelphia.
- Strassmann, G. (1947) Traumatic Rupture of the Aorta. American Heart Journal 33: 508–515.
- Sturm, J.T., Luxenberg, M.G., Moudry, B.M. and Perry, J.F. (1989) Does sternal fracture increase the risk for aortic rupture? Annals of Thoracic Surgery 48: 697–698.
- Sudaram, S.H. and Feng, C.C. (1975) Finite Element Analysis of the Human Thorax. Journal of Biomechanics 10(8): 505–516.
- Taylor, E.R. (1962) Thrombocytopenia following abrupt deceleration. ARL-TDR-62-30, 6571st ARL, AMD, AFSC, Holloman AFB, New Mexico.
- Tribble, C.G. and Crosby, I.K. (1988) Traumatic Rupture of the Thoracic Aorta. Southern Medical Journal 81(8): 963–968.
- Viano, D.C. and Warner, C.Y. (1976) Thoracic impact response of live porcine subjects. Proc. 20th Stapp Car Crash Conference, pp. 733–765. SAE Paper No. 760823.
- Viano, D.C., Kroell, C.K. and Warner, C.Y. (1977) Comparative thoracic impact response of living and sacrificed porcine siblings. Proc. 21st Stapp Car Crash Conference, pp. 629–709. SAE Paper No. 770930.
- Viano, D.C. (1978a) Evaluation of Biomechanical Response and Potential Injury from Thoracic Impact. Aviation Space and Environmental Medicine 49(1): 125–135.
- Viano, D.C. (1978b) Thoracic Injury Potential. Proc. 3rd International Meeting Simulation and reconstruction of Impacts in Collisions, pp. 142–56. IRCOBIL, Bron, France.
- Viano, D.C., Warner, C.Y., Hoopes, K., Mortenson, C., White, R. and Artinian, C.G. (1978c) Sensitivity of porcine thoracic responses and injuries to various frontal and a lateral site. Proc. 22nd Stapp Car Crash Conference, pp. 169–207. SAE Paper No. 780890.
- Viano, D.C. (1983) Biomechanics of non-penetrating Aortic Trauma: A review. Proc. 27th Stapp Car Crash Conference, pp. 109–114. SAE Paper No. 831608.
- Viano, D.C. (1987a) Evaluation of the Benefit of Energy-Absorbing Material in Side Impact Protection: Part I. Proc. 31st Stapp Car Crash Conference. SAE Paper No.872212.
- Viano, D.C. (1987b) Evaluation of the Benefit of Energy-Absorbing Material in Side Impact Protection: Part II. Proc. 31st Stapp Car Crash Conference. SAE Paper No. 872213.
- Viano, D.C. (1989) Biomechanical Responses and Injuries in Blunt Lateral Impact. Proc. 33rd Stapp Car Crash Conference, pp. 113–142. SAE Paper No. 892432.
- Voigt, G.E. and Wilfert, K. (1969) Mechanisms of injuries to unrestrained drivers in head-on collisions. Proc. 13th Stapp Car Crash Conference, pp. 295–313. SAE Paper No. 690811.
- Wang, H-C. (1995) Development of a Side Impact Finite Element Human Thoracic Model. PhD Dissertation, Wayne State University, Detroit, MI.
- Yang, K.H. and King, A.I. (1989) Development of a Finite Element Based Two Dimensional Human Surrogates. 50th Anniversary Symposium Proceedings, pp. 52–57. Wayne State University, Detroit, MI.
- Zehnder, M.A. (1960) Accident Mechanism and Accident Mechanics of the Aortic Rupture in the closed Thorax Trauma. Thoraxchirurgie und Vasculaere Chirurgie 8: 47–65.