Patients with suspected meniscal tears or other injuries to their knees may be able to avoid arthroscopic surgery by having a 3-Tesla MRI examination instead, two studies together indicate.
Researchers compared 3-Tesla MRI (a newer version of standard MRI) to arthroscopy and found that 3-Tesla MRI had an accuracy rate of 96% in detecting meniscal tears. The MRI examinations were able to identify 108 of the 112 meniscal tears that were found when arthroscopic surgery was performed, said Tom Magee, MD, from Neuroskeletal Imaging in Merritt Island, FL, and the lead author of both studies. There were three cases in which the MRI demonstrated a meniscal tear, not seen on arthroscopy, Dr. Magee noted. “Because 3-Tesla MRI is accurate, we can confidently examine patients with suspected meniscal tears to determine if they need surgery immediately or if they might benefit from rehabilitation first to see if their knee injury heals, possibly avoiding surgery altogether,” Dr. Magee said.
3-Tesla MRI can be performed in a unique way (called isotropic imaging) so that the knee can be seen from all angles and planes then reconstructed three dimensionally as a “virtual arthroscopy.” This shows promise not only in detecting meniscal tears, but ACL tears, MCL injuries and chondral knee injuries as well, Dr. Magee said. “We compared this new technique to conventional MR knee imaging, and found that both are equally accurate. The benefit to the new technique is that it can be done faster with less patient motion,” Dr. Magee said. In addition, the new technique shows promise in better characterizing meniscal tears as stable or unstable. “If a tear is stable, the patient may not need surgery; an unstable tear (the tear can be moved during surgery) requires surgery sooner rather than later,” he said. Dr. Magee cautions that MR isotropic imaging is new and isn’t quite ready to replace standard MR knee imaging. However, he is hopeful it could eventually supersede current knee imaging techniques.
Keri Sperry | EurekAlert!
Why might reading make myopic?
18.07.2018 | Universitätsklinikum Tübingen
Unique brain 'fingerprint' can predict drug effectiveness
11.07.2018 | McGill University
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
18.07.2018 | Materials Sciences
18.07.2018 | Life Sciences
18.07.2018 | Health and Medicine