Tag: "beams" at medical news
Nature provides inspiration for important new adhesive
... increasing use to replace conventional joists and beams
in construction. Techniques have also been explored to create the new adhesives from tree bark or wood decayed by brown rot fungus. Regardless of the material used to produce the adhesives, they are renewable and may reduce the need for the currentl...
Jefferson neurosurgeons, radiation oncologists wrap radiation around spine for cancer pain relief
...al in Philadelphia have for the first time wrapped beams
of radiation around a patient's spine, relieving p...ers to tailor the shape and intensity of radiation beams
to fit the exact size and shape of the tumor all while sparing healthy tissue. It enables doctors t...
4D proton therapy, radiation-resistant tumors, interpreting medical images
...aditional radiation therapy, one must use multiple beams
of x-rays to deliver a uniform dose to a lung tumor; often at least one of the x-ray beams
will exit from the healthy (non-tumor-containing) lung and potentially damage it. On the other hand...
Rensselaer researchers awarded NSF grant to study nano springs, rods, beams
...l systems by making and testing springs, rods, and beams
on the nanoscale. They have been awarded a $1.15 million grant from the National Science Foundation for the research. The past decade has seen an explosion of interest in electronic devices at the molecular level, but less attention has been paid to ...
New radiation technique helps brain cancer patients keep their hair
...otherapy. This treatment uses two simple radiation beams
on each side of the head to target the cancer. It also causes patients to lose the hair on their head. Since hair loss can be upsetting for patients, doctors are experimenting with new types of radiation therapy to see if they are as effective in tre...
Ideal doses of IMRT defined to reduce treatment side effects for head and neck cancer
...ittsburgh Medical Center. "While these high-energy beams
are targeted to the tumor site as precisely as pos...ignificant." During radiation therapy, high-energy beams
are aimed at cancer cells to destroy them by permanently damaging their underlying genetic material....
Radiation treatment prolonged liver cancer patients' lives, U-M study finds
...niques that pinpoint precisely where the radiation beams
go. This allows a higher dose of radiation to be used and spares as much of the normal liver tissue as possible. As a result, less than a third of the patients in the study experienced severe complications from the treatment. The most common severe p...
Research breakthrough pinpoints aim of ion beams fired at cancer tumors
...a that discovered much higher quality laser proton beams
from laser acceleration as opposed to conventional particle acceleration. Producing carbon ion beams
and limiting their spread removes the major impediment to improving such applications as tumor irrad...
No-hands origami: New DNA self-assembly makes more complex structures, more easily
...o use Rothemunds technique in tests using electron beams
to guide complex DNA structures into place on silicon wafers. "The nice thing about what Pauls done is that hes taken us an important step closer to making whatever structure you care to imagine, from the bottom up," said Lieberman, who organized the...
Free-electron laser targets fat
...aser exposure. The researchers zapped samples with beams
of infrared laser light ranging from eight to 17 mm wide for about 16 seconds. They found that the 1210 nm wavelength preferentially heated pig fat up to 1 cm deep, without damaging the overlying skin. At 1210 nm, laser-induced heating of fat was mor...
Combining PET and CT scans makes cancer treatment more accurate
...MRT, which modifies the intensity of the radiation beams
to both the tumor and surrounding healthy tissue in order to avoid side effects while killing the cancer, can be used as an alternative to standard radiation therapy and could improve the patients' quality of life after cancer treatment. "Even thoug...
M. D. Anderson: Setting the benchmark in brain tumor treatment
...ing a large area of brain, we can now use multiple beams
to shape radiation around the tumor," says Woo. "This allows us to avoid critical structures and much of the surrounding brain, and that minimizes the treatment's impact on brain functions." Additionally, a freestanding Proton Therapy Center w...
Research at University of British Columbia receives historical recognition
...compound. Today, noble gas compounds produce laser beams
that are used in eye surgery and create anti-tumor agents, and they show promise as green chemistry reagents for more environmentally-friendly processes. James D. Burke, Ph.D., Chair of the ACS Board of Directors, will present a commemorative bronze...
New x-ray delivery method could improve radiation therapy
...s of very thin (25 to 90 micrometers) planar x-ray beams
(picture the parallel panels of window blinds in t...osition) instead of the unsegmented (solid), broad beams
used in conventional radiation treatment. Previous studies conducted at Brookhaven and at the Europe...
Sandia work launched on space shuttle shows live cells influence growth of nanostructures
...d to insects and their emanations read remotely by beams
from unmanned aircraft. The method also makes it easier to prepare individual cells for laboratory investigation under microscopes. "Normally, to visually examine a cell, researchers use time-consuming fixation or solvent extraction techniques," sa...
Radiation-armed robot rapidly destroys human lung tumors
...e, precise robotic arm to aim highly focused x-ray beams
at the site of a tumor. Currently there are 76 active CyberKnife sites worldwide (with 45 in the US), and an additional 62 scheduled to be installed globally. Recently, the Pittsburgh researchers upgraded their CyberKnife by adding a system called...
Carefully mixed radiation cocktail reduces breast cancer treatment's collateral damage to skin
...carefully determined mixture of electron and x-ray beams
precisely treated breast tumors while significantl...m radiation therapy (MBRT), which employs separate beams
of electrons and photons (x-rays). The two types of radiation complement one another, as electrons ...
3-D forms link antibiotic resistance and brain disease
...Illinois. Then they used the pattern formed by the beams
as they bounced off the crystals to create computer-generated, 3-D images of the patterns of twisting and folding amino acid chains that make up the different types of pantothenate kinase and their interactions with the other molecules. "These ima...
Jefferson radiation oncologists among first to use cone beam CT to improve treatment accuracy
...ments, the dosages of treatment or the size of the beams
based on the CT scans," he notes. In theory, cone beam is more accurate and the radiation beams
can be more pinpointed, meaning less radiation exposure to the rest of the patient. That can mean fe...
Modern radiation therapy ups lung cancer survival
...erapy by allowing doctors to aim several radiation beams
at the tumor to shape or "conform" the radiation to the lung. The idea is that tailoring each beam allows doctors to give more radiation to the tumor while keeping it away from nearby healthy tissues. Between 1978 and 2003, 200 patients with medica...