摘要:
The present invention provides methods and modalities that can modify wave reflection in the vascular system in order to create constructive interactions between existing wave dynamics and new reflective waves for the purpose of lowering the workload on the heart and increasing cardiac output, providing a viable option for the prevention and treatment of many heart conditions and diseases.
摘要:
Hardware and software methodology are described for non-invasively monitoring cardiac health. Hemodynamic waveforms variously acquired for a subject are analyzed to calculate or approximate intrinsic frequencies in two domains in two domains across the Dicrotic Notch. Together with associated notch timing, heart rate and blood pressure values left ventricle ejection fraction and/or stroke volume can be determination.
摘要:
Hardware and software methodology are described for non-invasive approaches to aortic aneurysm evaluation using ultrasound, microwave, and/or other radiofrequency (RF) techniques. Embodiments can be used to diagnose AAA and other aortic aneurysm conditions by non-invasive measurement and computation of displacement-based wave intensity (DWI) and/or displacement-based reflected wave intensity (DRWI) along the aorta and by comparison of the results to baseline data for a given patent or a population sample catalogue. Deviation of DWI and/or DRWI from a normal condition can be used to assess the severity of the AAA or other aortic aneurysm and any associated rupture risk.