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Tag: "emission" at medical news

New Way to "See" Genes, Evaluate Effectiveness of Gene Therapies Discovered

...er gene is present to glow "hot" during a positron emission tomography (PET) scan. This will allow physicians to locate the reporter genes paired with the gene therapy and establish a picture of the treatment at work....

Drug abuse leads to long standing changes in the brain

...ny Brook used an imaging technique called positron emission tomography (PET) scanning to measure the levels of molecules called dopamine transporters in the brains of 15 former methamphetamine abusers and 18 healthy comparison subjects (controls). The number of dopamine transporters (DAT) marks the presence o...

Dyslexia due to cerebellum abnormality

... adults using a scanning technique called positron emission tomography (PET). patients were monitored as they performed a pre-learned sequence of right hand finger movements, and as they learned a new sequence of finger movements, also with their right hand. During the tasks, activation of the cerebellum in...

The brain wave

...o from a very early age. Researchers used positron emission tomography (PET) to explore the neural mechanisms of imitation by measuring increases in blood flow in the brain. In the study where researchers looked at imitation, they discovered a consistent pattern of increased brain activity involving the sup...

Combined scan gives exact cancer diagnosis

...niversity of Texas now say that combining positron emission tomography (PET) with the more conventional computed tomography (CT) scan gives a more detailed diagnosis of such tumours. In PET, abnormal tissue is detected from the pattern of its biochemical activity - in this case, the rate at which it takes u...

Scan correlates susceptible heart plaque

...ns Hopkins Medical School now report that positron emission tomography (PET), in association with computed tomography (CT), makes a powerful imaging technique for monitoring the state of atherosclerotic plaque. Functioning with a group of 40 patients, they saw several 'hot spots' - areas of plaque which took ...

Effect of Osteosarcoma predicted by scans

...ermine prognosis in osteosarcoma. In PET (positron emission tomography), a radioactive, biologically chemical is used as a tracer to show the activity of a part of the body in 'real time'. This study showed how a form of glucose - FDG (fluorodeoxyglucose) - was taken up by the tumour. A group of 35 patients...

Associated scan for detecting ovarian cancer spread

...arian cancer within the abdominal cavity. Positron emission tomography (PET) scanning is useful// for detecting the activity of tumour tissue, while computed tomography (CT) is good for imaging anatomical detail. Researchers at Johns Hopkins Medical School have found that combining the two detects ovarian can...

Scanning Combo Helps Detect Lung Cancer

...or computed tomography) scans and PET (or positron emission tomography) scans in their study of more than 1,000 heavy smokers. Participants had to have smoked a minimum of 26 cigarettes a day for 37 years. The smokers, all 50 years of age or older, were given low-dose spiral CTs, with or without PET scans, f...

Early Detection of Lung Cancer

...ination of spiral computed tomography and positron emission tamography scanning to uncover the cancer before it becomes more difficult to treat. Lung cancer is the number one cause of cancer death worldwide, accounting for more than 1.3 million deaths a year. Since the disease is hard to detect in early and ...

Brain Scans Help Predict Alzheimer's Disease

Brain scans using positron emission tomography, or PET, markedly increase the ability of doctors to predict which patients will develop Alzheimer's disease as they grow older.//That's the main finding from the first large study to assess the use of PET scans in older people who complai...

Dementia and Down Syndrome

...ects. In the initial phase, all underwent positron emission tomography scans to measure glucose metabolic rates in the brain while performing a task involving mental abilities. GMR is known to play a role in dementia. Results showed lower GMR levels in Down syndrome and Alzheimer's patients when compared to ...

PET Scans Found To Reveal Hidden Cancers

New research shows positron emission tomography scans not only detect known abnormalities in cancer patients but // may also identify new, unrelated cancers. Researchers evaluated 1,750 PET scans of patients with known or suspected cancers to determine if the scans also identify unexpe...

MRI for distinguishing between dementia and Alzheimer’s diseas

...n blood flow is usually measured by using positron emission tomography or single proton emission computerized Tomography that involves injecting the patients with radioactive tracers. These expensi...

Caffeine can interfere with PET scan results

...e by Saint Louis University researchers. Positron emission tomography (PET) or computed tomography (CT) scan is done as a procedure to find out malignant growth or to evaluate the effect of treatment on an already diagnosed malignant growth. In this process a tracer like fluorodeoxyglucose is injected in the...

PET Scanner detects more Vaginal cancer than CT scans

...his study suggest that the use of PET, or positron emission tomography, would make diagnosis of vaginal cancer much more accurate and allow better selection of treatment’. The vaginal cancer progresses in the known fashion, and if the staging of the tumour can be accurately predicted before treatment were to...

PET scans can detect the results of cognitive behavior therapy

Positron emission tomography (PET) scan images can successfully detect the changes in the brain // that occur following the cognitive behavior therapy in patients. Researchers behind the study feel that this may prove that cognitive behavior therapy can bring about ch...

Overactive brain regions can lead to anorexia nervosa

...r from the disorder. Researchers had used positron emission tomography (PET) imaging to find out about the function and the level of activities of brain dopamine receptors. Researchers could only include women who had recovered from the disorder versus normal women for their study, as women who are still suff...

Sympathy and brain function

...o from a very early age. Researchers used positron emission tomography (PET) to explore the neural mechanisms of imitation by measuring increases in blood flow in the brain. In the study where researchers looked at imitation, they discovered a consistent pattern of increased brain activity involving the super...

Studying brain anatomy without surgery

...unctional magnetic resonance imaging and postition emission tonography. According to Enrico Gratton, a UI professor of Physics, whenever the region of the brain is activated, it uses more oxygen. This method works by measuring the blood flow and oxygen consumption in the brain.// Firstly, light emitted by n...

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