Application of Fluid Dynamics to the Cardiovascular Surgery: Mathematical Science for the Profound Insight into Cardiovascular Disease and for the Surgical Planning

Tuesday, November 21, 2017 - 1:25pm
Lind 305
Keiichi Itatani (Kyoto Prefectural University of Medicine)
Cardiovascular diseases always disturb the blood flow pattern, and physicians and
surgeons aim to improve the blood flow pattern irrespective of the diseases or therapeutic
procedures. For the detail inspection of blood flow pattern, fluid dynamics plays an
essential role. With recent progress in computer and imaging technology, blood flow
visualization with medical imaging has innovative progresses and several novel modalities
has been now applied to clinical practice. In this lecture, two types of blood flow imaging
are explained: computational simulations and flow measurement with MRI or
ultrasonography. Computational simulation has high resolution but the difficulty is
assumptions mainly on the boundary conditions of Navier Stokes equation to realize
physiological pulsatile flow. The main advantage of computational simulation is “virtualized
surgery in a computer” when combined with computer graphics, and it is effective in some
types of surgical cases. Disturbed blood flow in diseases often causes irregular turbulence
and mechanical stress caused by the diseased flow causes damage on the vessel wall or
heart muscle function. Thus, the blood flow imaging has an aspect of predictive medicine of
the cardiovascular disease. Novel flow visualization based on MRI and echocardiography is
applied to several diseases, and they have identified the pathophysiology of the
cardiovascular diseases, but the limitation is their resolution. In this lecture, the advantages
and limitations of the technology are discussed, in addition to the abundant cases
introductions from our surgical cases.

Keiichi Itatani MD PhD.
Department of Cardiovascular Surgery, Cardiovascular Imaging Labo. Kyoto Prefectural
University of Medicine
Founder; Advisor of Cardio Flow Design Inc.