Tag: "magnets" at medical news
In solution, tiny magnetic wires scatter light
...tley. In particular, scientists could use external magnets
to dictate the orientation and position of magnetic nickel nanowires within complex and tiny electronic systems. Without such control, says Bentley, working with nano-scale circuit parts could be like "trying to put Legos together with oven mitts on....
OHSU scientists develop MRI approach to improve breast cancer detection
...ce imaging technology combines the use of powerful magnets
and radio wave pulses. The magnet influences the magnetization of the body's water molecules. The radio signals that are received from this can be converted into a visual representation. The shutter speed concept allows researchers to adjust the mat...
Magnetic bracelets reduce the pain of osteoarthritis
...th their doctor. Also they note that high strength magnets
(170mTesla or more) seem to be needed. Although fa...her their findings are due to a specific effect of magnets
or a placebo effect. But, whatever the mechanism, the benefit from magnetic bracelets seems clinical...
New magnetic percutaneous system navigates vessels
...n laboratory. The system consists of two permanent magnets
that generate a magnetic field over the heart and a magnet-tipped coronary guide wire. The magnetic navigation involves interaction between the magnetic field of specified direction and magnitude, positioned externally to the patient, and a tiny mag...
Swallowing multiple magnets poses danger to children
...eration is required," Dr. Oestreich said. If the magnets
are allowed to pass beyond the stomach, they can a...lowed magnet may pass, in many instances, multiple magnets
will become lodged in the intestines. Dr. Oestreich provided commentary for the pediatric rad...
Detection at a distance for more sensitive MRI
... nuclei have magnetic moments, acting like toy bar magnets
with north and south poles. In a magnetic field th...addition to the uniform magnetic field, additional magnets
are turned on briefly to superimpose fields that are stronger in one direction than the other. When ...
A hot time for cold superconductors
... a smaller conductor, the cost of wire used in MRI magnets
could be reduced from $3-10 per kiloampere of current per meter of wire to only $1-2," Peterson said. "Because many miles of wire are wound into the coils in a typical MRI, the development of less expensive wires by the private sector could put an MR...
NYU School of Medicine attracts a powerful MRI machine
...politan area and one of only a handful of such big magnets
available for clinical and basic research in the U... producing a three-dimensional image. Higher field magnets
like the 7 Tesla can be used for imaging and for measuring the amounts of various biochemicals, whic...
Physics tip sheet #35
... new superconducting materials can be used to make magnets
that produce higher magnetic fields and MRI scanners will be able to use them to produce a sharper picture. Journal article: Available to journalists on request 3) From nanobubbles to clouds M. Moody and P. Attard Physical Review Letters (to appear...
For determining protein structures, a new method boosts precision and speed in high-dimensional NMR
...he combination of much more powerful 900 megahertz magnets
now coming online, such as the new one at the New York Structural Biology Center, to which UB researchers will have access, and new techniques, such as his, is ushering in a new era for NMR determination of proteins. "Our approach will allow scienti...
Market potential exists for superconductivity in medical, energy, transportation sectors
...lev trains that float above strong superconducting magnets
could travel at more than 300 miles per hour. Communications Superconductors could improve capacity, coverage and quality of service for personal communications devices, such as hand held communicators to generate and read e-mail. In March 2002, ...
NYU Medical Center selects Siemens as strategic partner
...s will additionally install two 3 Tesla high field magnets
to conduct imaging research of the human brain, metabolic studies of the brain, liver, kidneys and prostate as well as other advanced MR imaging studies. "This strategic partnership agreement extends our long-term relationship with NYU Medical Center...
Nanotech control device developed
...of Kim's single device. The device uses powerful magnets
to hold itself together. The parts don't touch but are rather held in place by magnetic force, eliminating the friction that makes nanoscale positioning so difficult. "Compared with conventional technology, the main advantage of this technology is t...
Scientists image material that could improve MRI technologies
...critical for high-quality imaging. Superconducting magnets
are the most widely used because they require less...cost of operation. Also important are the gradient magnets
that generate magnetic fields that vary in space. These non-uniform fields make it possible to disti...
UF researchers show magnetic stimulation may be a safe alternative to shock therapy
... of Florida researchersreport. In the past decade, magnets
have attracted the interest of many health consumersand have carved out a sizeable niche in the alternative medicine market as atreatment for multiple ailments -- from arthritis to back pain. Now a preliminary study, one of the first to provide scien...
Magnet therapy: what's the attraction?
... dollar business worldwide. Companies are selling magnets
that promise to relieve chronic pain...on the golf...y at the Baylor College of Medicine concluded that magnets
reduced pain in post-polio patients. But in today's Washington Post, a University of Maryland physic...
3-D magnetic resonance imaging safer way to diagnose heart disease
...resonance angiography (MRA),the test uses powerful magnets
to provide images of the coronary arteries, theblood vessels of the heart. Unlike conventional coronary angiography, the testdoes not require injection of a dye or exposure to X-ray. Thus, it causesconsiderably less discomfort and risk for the patie...
Magnetic Surgery System Tested Successfully On First Patient
...-- A revolutionary system that usessuperconducting magnets
and advanced computer imaging technology toautomat... changes the magnetic field of the superconducting magnets
that surroundthe patient's head, guiding the catheter along the predetermined curvilinearpath throug...
Radically New Type Of Surgery Tested On First Patient
...uis. Dacey used computer-controlledsuperconducting magnets
to remotely direct a small flexible biopsy instrum...the MSS, positioning itbetween the superconducting magnets
with a titanium frame. Opening the plasticbolt in the skull, they introduced a tiny magnet into the ...