"Biomedical Engineering integrates physical, chemical, mathematical, and computational sciences and engineering principles to study biology, medicine, behavior and health. It advances fundamental concepts, creates knowledge from the molecular to the organ systems levels, and develops innovative biologies, materials, processes, implants, devices, and informatics approaches for the prevention, diagnosis, and treatment of disease, for patient rehabilitation, and for improving health."
Another definition from the NIBIB Web site is
"The discipline of biomedical engineering lies at the forefront of the medical revolution. Advances in biomedical engineering are accomplished through interdisciplinary activities that integrate the physical, chemical, mathematical, and computational sciences with engineering principles in order to study biology, medicine, and behavior.
The goal of bioengineering is to promote biomedical advances to diagnose and treat disease and to prolong a healthy and productive life. "
The definition of BioImaging, also from The NIBIB website is
"Biomedical imaging methods open new ways to see the body’s inner workings, measure biological functions, and evaluate cellular and molecular events using less invasive procedures. While X-ray imaging is a familiar example, it represents only one aspect of this fast growing field.
These approaches allow physicians to detect disease and injury at their most curable stage and enable the delivery of less invasive and highly targeted medical therapies. Cellular and molecular imaging techniques combine new molecular agents with traditional imaging tools to capture pictures of specific biological pathways and processes in a living organism. These approaches will help researchers study normal biological processes and to diagnose and manage diseases."