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!
Oxygen can wake up dormant bacteria for antibiotic attacks
08.12.2016 | Penn State
NTU scientists build new ultrasound device using 3-D printing technology
07.12.2016 | Nanyang Technological University
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
08.12.2016 | Life Sciences
08.12.2016 | Physics and Astronomy
08.12.2016 | Materials Sciences