Tag: "radiofrequency" at medical news
NSAIDS okay for tonsillectomy, new study finds
... least five new approaches make use of ultrasound, radiofrequency
energy or lasers to break up and remove tissue, rather than conventional cutting or burning. Dray has relied exclusively on the new procedures for the past five years. Both Wei and Dray also note that it is now common to give a steroid such as dexame...
Ablation therapy improves survival for patients with inoperable liver tumors
WINSTON-SALEM Using radiofrequency
energy or liquid nitrogen to remove inoperable liver tumors can extend patient survival, according to new research at Wake Forest University Baptist Medical Center. Results of the study were reported at the Society of Surgery for the Alimentary Trac...
Expandable electrodes safe and effective for radiofrequency ablation of liver tumors
... multiple tips in the treatment of liver tumors by radiofrequency
ablation (RFA) is safe and effective, making it a useful alternative to surgery in selected patients, say researchers from the University of Brescia in Italy. In RFA, electrodes are used to distribute heat-generating electric current to the tumor in ...
Radiofrequency ablation is effective long-term treatment for kidney tumors
...General Hospital (MGH) researchers have shown that radiofrequency
ablation (RFA) a minimally invasive way of destroying tissue is an effective, longlasting treatment for small kidney tumors in selected patients. In a followup to research published in 2003, the investigators found that RFA treatment of renal cel...
Researchers recommend multidisciplinary approach of low back pain
... such as epidural steroid administration, (pulsed) radiofrequency
and implantable neurostimulators, and drug delivery pumps. Comparison between the practices in Belgium and the Netherlands revealed that where multidisciplinary pain clinics are less well-implanted, the health care costs for low back pain are higher ...
MRI pioneer wins national physics prize
...MRI image information. He worked on developing MRI radiofrequency
coils both for whole-body imaging as well as for localized regions of the body. He collaborated in devising the MRI Phased Array that produces images combining the superior resolution of localized coils with a large field of view. He helped design ...
Procedure for irregular heartbeat gives long-lasting relief & improves quality of life
...n, Italy report the results of a rigorous study of radiofrequency
catheter ablation for the chronic form of the most... heart muscle by delivering tiny bursts of intense radiofrequency
waves to areas of disorganized and rapid electrical activity, thereby short-circuiting the aberrant ...
Refinements and innovations enhance safety, effectiveness
...ation (APAF) Trial A catheter procedure that uses radiofrequency
energy to burn a blockade of scar tissue around th...d into the left side of the heart that can deliver radiofrequency
energy, which is used to burn circular patterns around each of the four pulmonary veins where the ab...
Free-electron laser targets fat
...is built on the same technology -- superconducting radiofrequency
accelerator technology -- that drives the lab's CE... nuclear physics experiments. "The superconducting radiofrequency
accelerator technology that the FEL is built on allows us to tune laser light through a wide range o...
NYU, Austrian researchers create non-invasive imaging method with advantages over conventional MRI
...erior of the human body through the application of radiofrequency
(rf) irradiation. However, the rf pulses of MRI machines deposit heat in patients and medical staff, though safety regulations that limit energy deposition have long been established. Jerschow and Mller have devised a low-energy, nuclear magnetic re...
FDG-PET accurate for evaluating lung tumor destruction from radiofrequency ablation
...ed to assess the amount of tumor destruction after radiofrequency
ablation (RFA)--the use of heat to destroy tumors--for the treatment of lung tumors and may provide more valuable information than CT alone, according to a new study. For the study, researchers assessed 10 tumors in 10 patients who had lung tumors tr...
New technique offers relief for patients with spinal tumors
...He used a technology that utilizes plasma-mediated radiofrequency
energy combined with saline solution to gently and precisely remove soft tissue at low temperature minimizing damage to healthy tissue. "This image-guided procedure guarantees ultimate accuracy," said Wong. It enables us to provide pain relief and ...
Heart Rhythm Society to host first ever live remote ablation demonstration
...ssels and directed to the heart muscle. A burst of radiofrequency
energy destroys very small areas of tissue that give rise to abnormal electrical signals. The technique being presented as part of this certified medical education (CME) course uses a computer to control a magnetic field that remotely moves the cathe...
Is expensive new heart rhythm treatment 'worth it'?
...atrial fibrillation. LACA delivers tiny "zaps" of radiofrequency
energy directly to the heart muscle to stop the electrical circuits that cause irregular heartbeats. The treatment is seen as an exciting option for atrial fibrillation, which interferes with daily life and greatly increases the risk of stroke. But l...
Radio wand may help detect sponges left in surgery patients
...g device that detects surgical sponges tagged with radiofrequency
identification chips could help operating room per...increase safety in the operating room, such as the radiofrequency
identification wand device described in this article, deserve further study to assess if they should...
Stroke risk should determine anti-clotting treatment
...a procedure that corrects irregular heartbeat with radiofrequency
energy -- is considered "a reasonable alternative to drug therapy to treat AF in patients with little or no left atrial enlargement, and in whom drug treatments did not stop the rhythm disturbance," Fuster said. Depending on symptoms, controlling ...
Multiple sclerosis damage found in 'normal' brain tissue
...elaxation after exposure to a magnetic field and a radiofrequency
(RF) pulse. Due to this RF pulse, protons in the body first reach an excited state and then relax back to a state of equilibrium by funneling the excess energy to the surrounding tissues. T1 refers to the time required for protons to relax to the equ...
MRI on the cheap and on the go
...c field, the precessing nuclei are also hit with a radiofrequency
(rf) pulse, they will absorb and re-emit energy at specific frequencies according to their rate of precession. When the rf pulse is combined with magnetic field gradients, a spatially encoded signal is produced that can be detected and translated in...
MRIs made safe for people with modern defibrillators and pacemakers
...the potential for their electronics to confuse the radiofrequency
generated by the MRI with an irregular heartbeat a...re lightweight and have better protection from the radiofrequency
energy of the MRI scanner. Using a single scanner, a 1.5 Tesla by General Electric, the Hopkins gr...
Early results indicate radiofreqency ablation useful in treating ovarian cancer metastasis
ablation, a procedure that uses a high frequency e...atients with advanced ovarian cancer who underwent radiofrequency
ablation to destroy disease that had spread to the liver. "Some studies have shown that patients wi...