Navigation Links
PET scans may improve accuracy of dementia diagnosis
Date:6/15/2009

TORONTOA new study shows that the use of positron emission tomography (PET) scans may improve the accuracy of dementia diagnoses early in disease onset for more than one out of four patients. The results were presented at SNM's 56th Annual Meeting.

Early, accurate diagnosis of dementia is critical for providing the best available courses of treatment and therapies in the beginning stages of disease, when treatments can be most effective. PET scans enable physicians to identify the neurological conditions underlying each patient's mental decline and choose appropriate courses of treatment.

"Routine clinical assessments do not accurately identify the root causes of dementia in the early stages," said Kirk A. Frey, a physician with the University of Michigan Hospitals' Division of Nuclear Medicine and lead author of the study. "Our preliminary results clearly indicate that molecular imaging technologies, such as PET scans, can help diagnose a patient's specific type of dementia. This is critical for providing the best possible care. Additionally, PET's ability to pinpoint neurological underpinnings of different forms of dementia could lead to new, more targeted drugs and therapies."

More than 5 million people each year are newly diagnosed with dementia, a disease that takes many forms and includes memory loss or other mental impairments that interfere with daily life. The most common type of dementia is Alzheimer's disease. Other types include frontotemporal dementia, which affects the frontal and temporal lobes of the brain, and Lewy body dementia, which involves degeneration of dopamine nerves in addition to the temporal and parietal lobes. Although these types of dementia have different causes, patients can express similar symptoms in the early stages, making accurate diagnosis difficult. Providing appropriate treatments and therapies as early as possible can avoid unnecessary, and sometimes severe, side-effects and complications.

The new study identified 66 patients with mild dementia or mild cognitive impairment who were evaluated through standard neurological testing and anatomic brain imaging. Three clinical experts reviewed the results of these data to make diagnoses of either Alzheimer's disease, frontotemporal dementia or dementia with Lewy bodies. Patients then underwent PET scans for amyloid deposits and for dopamine nerve integrity. Patients' initial diagnoses changed more than 25 percent of the time after PET imaging. PET scans provided images of important signals for disease that other examinations missed, such as deposits of amyloid plaque, which are a common indicator of Alzheimer's disease, and damage to dopamine nerves in Lewy body dementia.

The study will track patients for two years to confirm the accuracy of their diagnoses.


'/>"/>

Contact: Amy Shaw
ashaw@snm.org
703-652-6773
Society of Nuclear Medicine
Source:Eurekalert

Related medicine news :

1. European directive will halt use of MRI scans; cancer diagnosis and treatment will suffer
2. PET scans can accurately detect a breast tumors response to chemotherapy
3. High-tech CT scans: not a bad choice to test for clogged arteries
4. New Computerized Scans Effective for Spotting Clogged Arteries
5. PET scans useful for some cancer treatment, but how do patients fare?
6. PET Scans Can Spot Cervical Cancers Return
7. Post-treatment PET scans can reassure cervical cancer patients
8. CT scans to determine heart disease in the emergency room
9. Obesity Keeps Patients From Needed CT Scans After Surgery
10. PET Scans Could Boost Lung Cancer Diagnosis
11. Rise in CT Scans Poses Cancer Risk
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... California (PRWEB) , ... June 26, 2016 , ... Pixel ... Cut Pro X. , "Film editors can give their videos a whole new perspective ... Christina Austin - CEO of Pixel Film Studios. , ProSlice Levels contains over ...
(Date:6/26/2016)... Lake Orion, Clarkston, Michigan (PRWEB) , ... June ... ... direction with respect to fertility once they have been diagnosed with endometriosis. These ... tolerable intercourse but they also require a comprehensive approach that can help for ...
(Date:6/25/2016)... FL (PRWEB) , ... June 25, 2016 , ... The temporary closing of Bruton Memorial ... Plant City Observer , brings up a new, often overlooked aspect of head lice: the ... closing for fumigation is not a common occurrence, but a necessary one in the event ...
(Date:6/25/2016)... , ... June 25, 2016 , ... As a lifelong ... Cum Laude and his M.D from the David Geffen School of Medicine at UCLA. ... to Los Angeles to complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai ...
(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the benefits ... terms of the latter, setting the bar too high can result in disappointment, perhaps ... slow progress toward their goal. , Research from PsychTests.com reveals that ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... the establishment of Astellas Farma Colombia (AFC), a new affiliate with operations headquartered in Bogota. Colombia ... ... Sandra ... ... Astellas is a pharmaceutical company ...
(Date:6/23/2016)... The vast majority of dialysis patients currently ... are usually 3 times a week, with treatment times ... time, equipment preparation and wait time.  This regimen can ... patients who are elderly and frail.  Many elderly dialysis ... centers for some duration of time. Residents ...
(Date:6/23/2016)... NEW YORK , June 23, 2016 ... rough waters, but it continues to present great opportunities ... featured companies for today: Intrexon Corp. (NYSE: ... ), Arena Pharmaceuticals Inc. (NASDAQ: ARNA ), ... Learn more about these stocks and receive your complimentary ...
Breaking Medicine Technology: