Medical electronics

Article Abstract:

Major advances in biomagnetism in 1989 attracted substantial interest from the medical electronics community, while magnetic stimulation, magnetic resonance imaging (MRI), and laser welding also make significant advances. Biomagnetism involves the sensing of miniscule magnetic fields in the heart and the brain with 'superconducting quantum interference devices' (Squids). The magnetic signals can be located with an accuracy of a few millimeters. Two vendors introduced biomagnetic systems with 37 Squids that speed measurement of large areas of the brain. Research is being pursued in the stimulation of hand and leg movements by applying highly controlled, intense magnetic fields to specific portions of the brain. Advances in MRI include shorter testing duration, improved resolution, and faster generation of 3D images. Advances in laser welding and shock-wave lithotripsy are noted.

Electromedical equipment, Industrial research, Magnetic fields, Research and Development, Trends, Diagnostic Equipment

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Medical electronics

Article Abstract:

Magnetic resonance imaging (MRI) technological innovations are making the process practical in a wider range of medical applications. MRI is being used to detect phosphorus and other elements in tissue in a process known as magnetic resonance spectroscopy (MRS) for the diagnosis of coronary artery disease. Advances were noted in 1990 in the areas of ultrasound applications and biomagnetic imaging as well. MRI three-dimensional reconstruction is able to distinguish different types of tissue, such as fat or lesions, and fluids, making it more practical than CT reconstruction, which can only distinguish bone and tissue. An interactive stereotaxic device is being developed by Chicago radiologist David Lean and collaborators for transferring computer-rehearsed surgical incision contours to a patient's body prior to operating; this and other medical electronics research is described.

Innovations, Electronics, Magnetic resonance imaging, Imaging systems, Industry Analysis, Imaging Technology

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