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A 1D model of the arterial circulation in mice

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Abstract
At a time of growing concern over the ethics of animal experimentation, mouse models are still an indispensable source of insight into the cardiovascular system and its most frequent pathologies. Nevertheless, reference data on the murine cardiovascular anatomy and physiology are lacking. In this work, we developed and validated an in silico, one dimensional model of the murine systemic arterial tree consisting of 85 arterial segments. Detailed aortic dimensions were obtained in vivo from contrast-enhanced micro-computed tomography in 3 male, C57BL/6J anesthetized mice and 3 male ApoE(-/-) mice, all 12-weeks old. Physiological input data were gathered from a wide range of literature data. The integrated form of the Navier-Stokes equations was solved numerically to yield pressures and flows throughout the arterial network. The resulting model predictions have been validated against invasive pressure waveforms and non-invasive velocity and diameter waveforms that were measured in vivo on an independent set of 47 mice. In conclusion, we present a validated one-dimensional model of the anesthetized murine cardiovascular system that can serve as a versatile tool in the field of preclinical cardiovascular research.
Keywords
PULSE-WAVE VELOCITY, PRESSURE-VOLUME RELATION, IN-VIVO, BLOOD-FLOW, MYOCARDIAL-INFARCTION, MECHANICAL-PROPERTIES, VENTRICULAR-FUNCTION, ELASTIC PROPERTIES, AORTIC STIFFNESS, CARDIAC-FUNCTION, high-frequency ultrasound, contrast-enhanced micro-CT, 1D mouse model, systemic arterial tree, ventricular-vascular coupling

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Citation

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Chicago
Aslanidou, Lydia, Bram Trachet, Philippe Reymond, Rodrigo Fraga-Silva, Patrick Segers, and Nikolaos Stergiopulos. 2016. “A 1D Model of the Arterial Circulation in Mice.” Altex-alternatives to Animal Experimentation 33 (1): 13–28.
APA
Aslanidou, L., Trachet, B., Reymond, P., Fraga-Silva, R., Segers, P., & Stergiopulos, N. (2016). A 1D model of the arterial circulation in mice. ALTEX-ALTERNATIVES TO ANIMAL EXPERIMENTATION, 33(1), 13–28.
Vancouver
1.
Aslanidou L, Trachet B, Reymond P, Fraga-Silva R, Segers P, Stergiopulos N. A 1D model of the arterial circulation in mice. ALTEX-ALTERNATIVES TO ANIMAL EXPERIMENTATION. 2016;33(1):13–28.
MLA
Aslanidou, Lydia, Bram Trachet, Philippe Reymond, et al. “A 1D Model of the Arterial Circulation in Mice.” ALTEX-ALTERNATIVES TO ANIMAL EXPERIMENTATION 33.1 (2016): 13–28. Print.
@article{7022267,
  abstract     = {At a time of growing concern over the ethics of animal experimentation, mouse models are still an indispensable source of insight into the cardiovascular system and its most frequent pathologies. Nevertheless, reference data on the murine cardiovascular anatomy and physiology are lacking. In this work, we developed and validated an in silico, one dimensional model of the murine systemic arterial tree consisting of 85 arterial segments. Detailed aortic dimensions were obtained in vivo from contrast-enhanced micro-computed tomography in 3 male, C57BL/6J anesthetized mice and 3 male ApoE(-/-) mice, all 12-weeks old. Physiological input data were gathered from a wide range of literature data. The integrated form of the Navier-Stokes equations was solved numerically to yield pressures and flows throughout the arterial network. The resulting model predictions have been validated against invasive pressure waveforms and non-invasive velocity and diameter waveforms that were measured in vivo on an independent set of 47 mice. In conclusion, we present a validated one-dimensional model of the anesthetized murine cardiovascular system that can serve as a versatile tool in the field of preclinical cardiovascular research.},
  author       = {Aslanidou, Lydia and Trachet, Bram and Reymond, Philippe and Fraga-Silva, Rodrigo and Segers, Patrick and Stergiopulos, Nikolaos},
  issn         = {1868-596X},
  journal      = {ALTEX-ALTERNATIVES TO ANIMAL EXPERIMENTATION},
  keyword      = {PULSE-WAVE VELOCITY,PRESSURE-VOLUME RELATION,IN-VIVO,BLOOD-FLOW,MYOCARDIAL-INFARCTION,MECHANICAL-PROPERTIES,VENTRICULAR-FUNCTION,ELASTIC PROPERTIES,AORTIC STIFFNESS,CARDIAC-FUNCTION,high-frequency ultrasound,contrast-enhanced micro-CT,1D mouse model,systemic arterial tree,ventricular-vascular coupling},
  language     = {eng},
  number       = {1},
  pages        = {13--28},
  title        = {A 1D model of the arterial circulation in mice},
  url          = {http://dx.doi.org/10.14573/altex.1507071},
  volume       = {33},
  year         = {2016},
}

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