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Biomedical Engineering and Bioengineering Commons

Open Access. Powered by Scholars. Published by Universities.®

2013

Purdue University

Ultrasound

Articles 1 - 3 of 3

Full-Text Articles in Biomedical Engineering and Bioengineering

In Vivo Flow Measurements Of Murine Renal Arteries And Veins With High Frequency Ultrasound, Amy E. Bogucki, Hilary D. Schroeder, Alexa A. Yrineo, Craig J. Goergen Oct 2013

In Vivo Flow Measurements Of Murine Renal Arteries And Veins With High Frequency Ultrasound, Amy E. Bogucki, Hilary D. Schroeder, Alexa A. Yrineo, Craig J. Goergen

The Summer Undergraduate Research Fellowship (SURF) Symposium

The number of glomeruli in the kidneys has been shown to have an effect on the decline in renal function over time (Brenner, Garcia, Anderson 1988). Furthermore, flow in the renal arteries and veins may depend on the number of glomeruli in the kidney. Consistent in vivo measurements of volumetric flow in the renal arteries and veins are difficult to obtain. Thus, the purpose of this study was to develop non-invasive imaging techniques capable of estimating arterial and venous flow to kidneys. A high-frequency small animal ultrasound system was chosen based upon its excellent spatial and temporal resolution when imaging ...


Visualization Of Complex Flow Patterns In Angiotensin Ii-Induced Dissecting Murine Abdominal Aortic Aneurysms With High Frequency Ultrasound, Hilary D. Schroeder, Alexa A. Yrineo, Amy E. Bogucki, Craig J. Goergen Oct 2013

Visualization Of Complex Flow Patterns In Angiotensin Ii-Induced Dissecting Murine Abdominal Aortic Aneurysms With High Frequency Ultrasound, Hilary D. Schroeder, Alexa A. Yrineo, Amy E. Bogucki, Craig J. Goergen

The Summer Undergraduate Research Fellowship (SURF) Symposium

Abdominal aortic aneurysm (AAA) rupture is a common cause of mortality in the United States. Current treatments are only employed once the risk of rupture outweighs the risks associated with surgery. Murine models have been developed to characterize AAA pathogenesis in the hope that new treatments will be developed. For this study, angiotensin II (AngII) was infused subcutaneously into apolipoprotein E-deficient (ApoE-/-) mice using an osmotic mini-pump over 28 days. ApoE-/- mice (16-week-old, 3 females, 2 males) were imaged using a VisualSonics Vevo 2100 high frequency ultrasound before pump implantation and 3, 7, 14, 21, and 27 days following implantation ...


Development Of Non-Invasive In Vivo Ultrasound Imaging Techniques For Elastase-Induced Experimental Abdominal Aortic Aneurysms, Alexa A. Yrineo, Elizabeth A. Nunamaker, Hilary D. Schroeder, Amy E. Bogucki, Craig J. Goergen Oct 2013

Development Of Non-Invasive In Vivo Ultrasound Imaging Techniques For Elastase-Induced Experimental Abdominal Aortic Aneurysms, Alexa A. Yrineo, Elizabeth A. Nunamaker, Hilary D. Schroeder, Amy E. Bogucki, Craig J. Goergen

The Summer Undergraduate Research Fellowship (SURF) Symposium

Abdominal aortic aneurysms (AAAs) are pathological dilations of the aorta which are associated with significant morbidity and mortality. The underlying mechanisms that cause this inflammatory disease are not fully understood and thus, are currently under investigation. In the hopes of preventing disease progression, rodent models that mimic the human condition have been developed to provide insight into the pathogenesis of AAAs. In this study, porcine pancreatic elastase (0.44 U; Sigma-Aldrich) was infused into the infrarenal aortas of male, Sprague Dawley rats to induce aneurysms. To perform the surgery, temporary ligatures were placed around proximal and distal sections of the ...