Positron Emission Tomography News and Research

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Amyloid clue to Parkinson’s dementia

Study findings link amyloid β burden to future cognitive decline in patients with Parkinson’s disease.

22 Jan 2013

Dopamine synthesis increased in patients at high risk for psychosis

UK study results show that patients at ultra-high risk for psychosis have elevated dopamine synthesis capacity in the dorsal striatum.

17 Jan 2013

Aggressive surveillance questionable for eye melanoma recurrence

Patients treated for primary choroidal or ciliary body melanoma may not always benefit from an aggressive surveillance strategy for the detection of metastatic disease, caution US researchers.

14 Jan 2013

18F-FDG PET/CT may become important distant staging modality in patients with breast cancer

New research published in the January issue of The Journal of Nuclear Medicine shows that 18F-fludeoxyglucose (18F-FDG) positron emission tomography (PET)/computed tomography (CT) imaging offers significant prognostic stratification information at initial staging for patients with locally advanced breast cancer. When compared to conventional imaging, 18F-FDG PET/CT more accurately showed lesions in the chest, abdomen and bones in a single session, changing management for more than 50 percent of the patients in the study.

3 Jan 2013

Electroconvulsive therapy releases opiate-like substances

Researchers used electricity on certain regions in the brain of a patient with chronic, severe facial pain to release an opiate-like substance that's considered one of the body's most powerful painkillers.

3 Jan 2013

New cost-effective, less invasive MRI method for diagnosis of dementia

A new way to use MRI scans may help determine whether dementia is Alzheimer's disease or another type of dementia, according to new research published in the December 26, 2012, online issue of Neurology®, the medical journal of the American Academy of Neurology.

27 Dec 2012

Radical surgery has lasting benefits for epileptic children

Hemispherectomy in children with medically refractory epilepsy offers a high rate of long-term seizure control, report US researchers.

20 Dec 2012

Bipolar subtypes show neurobiologic differences

Results from a Taiwanese study show that there are significant neurobiologic differences between patients with bipolar I and II disorder.

20 Dec 2012

18FDG–PET–CT improves breast cancer staging

A prospective study has shown fluorodeoxyglucose positron emission tomography/computed tomography to be a powerful tool for the detection of nodal and distant metastatic disease in patients with breast cancer.

17 Dec 2012

Combination of imaging and biomarker tests helps predict Alzheimer's in patients with MCI

Employing a combination of imaging and biomarker tests improves the ability of doctors to predict Alzheimer's in patients with mild cognitive impairment, according to researchers at Duke Medicine.

11 Dec 2012

FAC PET identifies liposarcoma tumors that are sensitive to chemotherapy

Liposarcoma, the most common type of sarcoma, is an often lethal form of cancer that develops in fat cells. It is particularly deadly, in part, because the tumors are not consistently visible with positron emission tomography (PET) scans that use a common probe called FDG and because they frequently do not respond to chemotherapy.

11 Dec 2012

Combination of diagnostic tests can predict conversion from MCI to Alzheimer's

A combination of diagnostic tests, including imaging and cerebrospinal fluid biomarkers can improve prediction of conversion from mild cognitive impairment (MCI) to Alzheimer's disease, according to a new study published online in the journal Radiology.

11 Dec 2012

Studies explore F-18-FLT PET utility in providing prognostic information for patients with gliomas

In the management of gliomas-or tumors that originate in the brain-precise assessment of tumor grade and the proliferative activity of cells plays a major role in determining the most appropriate treatment and predicting overall survival.

4 Dec 2012

Evidence of neurobiologic differences between bipolar subtypes

Taiwanese researchers have found differences in fronto-limbic metabolism and executive function between patients with bipolar disorder I and II.

30 Nov 2012

Florbetapir PET scans can detect brain amyloid deposits associated with Alzheimer’s

A test to detect brain amyloid deposits associated with Alzheimer disease (AD) provides doctors with useful information on treatment and further testing for patients with cognitive impairment, according to a study published online by the journal Alzheimer Disease & Associated Disorders.

28 Nov 2012

Chemotherapy can induce brain changes that may affect concentration and memory

Chemotherapy can induce changes in the brain that may affect concentration and memory, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).

27 Nov 2012

New combinations of medical imaging technologies hold promise for personalized medicine

New combinations of medical imaging technologies hold promise for improved early disease screening, cancer staging, therapeutic assessment, and other aspects of personalized medicine, according to Ge Wang, director of Virginia Tech's Center for Biomedical Imaging, in a recent paper that appeared in the refereed journal PLoS One.

27 Nov 2012

Personality influences placebo response

Researchers have found that resilient, altruistic, and straightforward individuals are significantly more likely to respond to a sham painkilling or placebo injection than those who are angry and hostile.

21 Nov 2012

Personality traits linked with individual's susceptibility to placebo effect from pain medicines

Personality traits might do more than help you win a popularity contest. According to new University of Michigan-led neuroscience research, co-authored by University of Maryland (UM) School of Dentistry Dean Christian S. Stohler, DMD, DrMedDent, such traits also might make you more likely to get pain relief from a placebo - a fake medicine.

17 Nov 2012

Feinstein seeks NDA approval for Fluorodopa F 18 PET scan to diagnose parkinsonian syndromes

The Feinstein Institute for Medical Research announced today the submission of a New Drug Application to the US Food and Drug Administration (FDA) for the Fluorodopa F 18 positron emission tomography (PET) scan used to diagnose parkinsonian syndromes.

15 Nov 2012