William E Butler

Title: Innovations of William E Butler

Introduction

William E Butler is a notable inventor based in Boston, MA (US). He holds a total of 14 patents that showcase his contributions to the field of medical imaging and angiography. His work has significantly advanced the understanding and technology surrounding cardiac frequency angiographic phenomena.

Latest Patents

One of his latest patents is focused on motion-compensated wavelet angiography. This invention provides methods and systems for extracting cardiac frequency angiographic phenomena from an unconstrained vascular object during an angiographic study. The process involves obtaining a series of angiographic image frames at a rate faster than cardiac frequency. Each image frame consists of multiple pixels, each with a corresponding intensity. By applying an optical flow technique, the computer generates paths that correspond to the displacement of pixels across the frames. This leads to a spatiotemporal reconstruction of cardiac frequency angiographic phenomena, which can be displayed in one or more images.

Another significant patent involves methods for angiography. This invention highlights the study of blood vessels through the injection of an angiographic chemical contrast agent while obtaining a sequence of images, typically x-rays. The discovery that contrast in blood vessels varies at cardiac frequency in both magnitude and phase allows for a more informative angiogram. This innovation enables the acquisition of equivalent anatomical and physiological information with reduced doses of chemical contrast agents and x-rays, as well as lighter and more portable angiography equipment.

Career Highlights

Throughout his career, William E Butler has worked with various companies, including Sherwood Services Ag. His innovative work has made a lasting impact on the field of medical imaging.

Collaborations

He has collaborated with notable individuals such as Paul H Chapman and Eric R Cosman, Sr. These partnerships have contributed to the advancement of his inventions and the overall field of angiography.

Conclusion

William E Butler's contributions to the field of angiography and medical imaging are significant. His innovative patents and collaborations have paved the way for advancements that enhance the understanding of vascular anatomy and physiology.