Company Filing History:
Years Active: 1985-1988
Title: Innovations of James R MacFall
Introduction
James R MacFall is a notable inventor based in Hartland, WI (US). He has made significant contributions to the field of nuclear magnetic resonance (NMR) imaging. With a total of 6 patents to his name, MacFall's work has advanced the capabilities of medical imaging technologies.
Latest Patents
One of MacFall's latest patents is a method for acquiring NMR data that is subject to periodic variations. This innovative approach aims to reduce image artifacts caused by signal variations during the examination of subjects using NMR techniques. The method involves acquiring NMR data composed of multiple views, utilizing a pulse sequence to generate NMR signals, and applying a magnetic gradient along at least one dimensional axis of the object. A gating technique is employed to define a window during each respiratory cycle, allowing NMR data to be acquired only during these specific windows. Additionally, a view ordering technique is used to alter the magnitude of a field gradient in a nonmonotonic manner during data acquisition.
Another significant patent by MacFall focuses on enhancing the image signal-to-noise ratio (SNR) by combining NMR images. This method enhances SNR by utilizing a plurality of multi-echo images acquired at different spin-echo times. The calculated values of spin-spin relaxation and pseudospin density for each pixel are used to generate new images at spin-echo times for which actual measurements may not have been taken. This innovative approach allows for improved SNR in images acquired by varying parameters that affect the spin-lattice dependence of the image.
Career Highlights
James R MacFall has had a distinguished career, working at General Electric Company, where he has contributed to advancements in imaging technologies. His work has been instrumental in improving the quality and reliability of NMR imaging.
Collaborations
MacFall has collaborated with notable colleagues, including Gary H Glover and Felix W Wehrli. These collaborations have further enriched his research and innovations in the field of NMR imaging.
Conclusion
James R MacFall's contributions to the field of nuclear magnetic resonance imaging have significantly advanced medical imaging technologies. His innovative methods and patents continue to influence the industry and improve diagnostic capabilities.