Tag: "scans" at medical news
Society of Nuclear Medicine supports inclusion of PET as a CMS reimbursed indication for Alzheimers disease
...confirmatory diagnosis of Alzheimers disease. PET scans
early in the dementia process demonstrated a prognostic sensitivity of 93%, and a prognostic specificity of 76%. Overall accuracy was thus 88% (250/284). We believe that there are compelling reasons why PET is a valuable tool for physicians attempt...
Neuroscientists searching for roots of empathy find brain regions involved in learning by imitation
...ts. Their heads were held stationary while the PET scans
made images of their brains, but they could move their right hands and watch a demonstrators hands reflected in a mirror. Subjects were first asked to watch the demonstrator move the objects and then imitate the action with their hand. In the secon...
Mayo Clinic study finds radioactive drug samarium hopeful new treatment for osteosarcoma
... for years by radiology physicians to perform bone scans
for detecting bone cancer and for determining the spread of cancer from a primary site, such as a breast, to the bone, says Peter Anderson, M.D., a Mayo Clinic pediatric oncologist and lead researcher on the study. Now our study confirms research don...
Stroke news tips for Friday, Feb. 8, 2002
...m. #43 Lets go to the video: remote review of CT scans
appears reliable. Neurologists with expertise in ...urately read acute stroke computer tomography (CT) scans
of the head via teleradiology to determine if a patient is a candidate for thrombolytic therapy, res...
Imaging tool helps locate recurrent prostate cancer
... that have spread into the bones. Both CT and bone scans
are often only useful for localization of disease in patients with advanced disease. "CT scans
and bone scans
will often come back negative in men with early signs of recurrent disease (low serum...
Intensity modulated radiation therapy at Fox Chase Cancer Center
...immobilize the patient each day for treatment. CT scans
and MRI images are taken and fused together to further pin-point the target. Fox Chase Cancer Center was the first and continues to be the only facility in the country to use a dedicated MRI-Simulator, located in the Radiation Department, in treat...
Biopsies of the internal mammary sentinel nodes may improve patients chances of survival
...een performing routine IM-SN biopsies whenever the scans
detect them. The IM-SN biopsy is more difficult to perform than an axillary SN biopsy, but complications are rare and not usually serious (in 7% of cases slight damage to the membrane round the lungs is caused, but this is treated by simple vacuum dr...
Statins may inhibit calcium growth on aortic valve in the elderly
...ad undergone two electron beam computed tomography scans
an average of two years apart. Of the group, 28 had been taking statins. People on statins had a 62 percent lower median rate of calcium accumulation. The researchers say that because of study limitations, it is too early to recommend that people ta...
Spiral scan sees stroke blockage more clearly
...c or hemorrhagic. However, high-speed helical CT scans
(sometimes called spiral CT), which use a contrast...can be used for the brain. Information from these scans
could help physicians assess how best to treat ischemic stroke patients. It may turn out that the pa...
Brain center searches for patterns
...square sequences to produce a response on the fMRI scans
than it did sequences of either circles or squares. "The fact that there was no response until a relatively long alternating series seems to tell us that humans can pick up on simple repeating patterns rather quickly, but it takes longer to perce...
New study shows ropinirole slows the loss of dopamine function in Parkinsons disease
...e disease taking levodopa. Three-dimensional PET scans
were taken before and after the study to show the level of dopamine loss in the brain, which can be inferred from a radioactive marker whose uptake by neurons is measured in PET imaging. This multi-site, international trial is called "Requip as E...
Fetal cell transplants show long-term benefit for Parkinson's
...ponded to levodopa before the transplant.PET brain scans
showed that after one year patients had an increase in dopamine activity in the area of the brain that received the implants. Over the next three years, the amount of activity stabilized or increased, Freed said. The researchers also did autopsies on...
Study finds widespread sympathetic nerve damage in Parkinson's disease
...ants were given positron emission tomography (PET) scans
of the heart, kidney, and several other organs usi...yroid and kidneys than the normal volunteers. PET scans
of the PD patients showed normal numbers of nerve endings in the liver, spleen, and several other or...
Stanford team prevents kidney transplant rejection without drugs
...r transplantation occurs because the immune system scans
for foreign cells. If the immune system in the transplant recipient weren't heavily suppressed, it would attack cells in the transplanted organ, leading to rejection. Strober said the study asks two questions: Can you get patients off the dru...
More evidence of possible link between hearing loss and CVD
... test, study participants underwent carotid artery scans
to measure atherosclerosis. We are analyzing these scans
to determine if mild atherosclerosis is associated with cochlear function test results, Torre says....
Placebo, antidepressant may lift depression via common mechanism
...eutic milieu of an inpatient psychiatric ward. PET scans
traced the destination of a radioactive form of glucose - the brain's fuel - to detect brain activity patterns. After 6 weeks, brains of men who responded to either treatment showed "remarkable concordance:" Activity increased in prefrontal cortex, ...
MRI brain scan may detect Alzheimer's disease decades before first symptoms
Tampa, FL (May 28, 2002) MRI scans
of the brain may detect Alzheimers disease decades... the co-authors of the study. Postmortem MRI brain scans
of 56 participants of the Nun Study were analyzed. Smaller volumes of the hippocampus seen on the sc...
Homocysteine related to brain atrophy, vascular disease
...lood was tested for homocysteine levels. MRI brain scans
were used to measure the amount of brain atrophy, or loss of brain cells and volume. The study found that elderly people who had greater brain atrophy (those in the top 50 percent of the study group) were twice as likely to have high homocysteine le...
Dopamine may play role in cue-induced craving distinct from its role regulating reward effects
...10. Participants had fasted 16-20 hours before PET scans
were conducted. Food stimulation caused an increase in dopamine in the dorsal striatum but not in the ventral striatum, where the nucleus accumbens is located. This suggests that dopamine may be involved in food motivation that is distinct from its r...
UCLA researchers check brain waves to predict effectiveness of antidepressants
...ight weeks. "Other researchers have compared brain scans
of depressed people before and after treatment and found differences between those who recovered and those who did not respond. Those findings, however, do not allow prediction of whether a particular patient is likely to get well," said Cook, who al...
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