Abstract
In recent years various diseases exist in the world. In this study, we target at Pulmonary Hypertension that is known as the intractable disease. The treatment at appropriate timing is particularly essential to the intractable disease. Now, the diagnosis method of the Pulmonary Hypertension called the Pulmonary Vascular Resistance (PVR) is used in medical care. However, this diagnosis method is affected by the conditions except the blood vessel. For this reason, this diagnosis method don’t reflect the disease state exactly. Therefore we perform a study to consider pulmonary artery as an elastic duct line and analyze an internal wave motion phenomenon and to propose the new diagnosis method of the Pulmonary Hypertension. We confirmed that a phase angle fluctuated depending on the severity of a patient's illness by comparison among simulation results, experiment results, and clinical results. In addition, we showed the effectiveness of the diagnosis method that we proposed. We considered the cause that a phase angle was greatly over.
