Navigation Links
High-Tech Imaging No Better for Diagnosing Head/Neck Cancers
Date:5/13/2008

New type of PET scan same as MRI, CT for false positives, study found

TUESDAY, May 13 (HealthDay News) -- An advanced imaging technique to detect head and neck cancer may not boost a patient's odds of receiving an early or more accurate diagnosis of the disease, new findings suggest.

Positron emission tomography with a radioactive tracer (18F-FDG PET) is one of three imaging techniques commonly used to check whether head and neck squamous cell cancer has spread to the nearby lymph nodes in such patients. This is important in determining the prognosis of the disease, since some patients who clinically appear free of these types of metastases may actually have small tumors within their lymph nodes.

The findings are based on an analysis of 32 previously published studies done on head and neck cancer patients with one or fewer nodal metastases. The team from the University of Ioannina School of Medicine, in Greece, found that FDG-PET failed to identify half the lesions in patients whose lymph nodes tested negative.

The analysis, published online May 13 in the Journal of the National Cancer Institute, also found that the imaging technique incorrectly identified normal tissue as being cancerous 13 percent of the time.

The sensitivity and accuracy of FDG-PET compared with the two other common imaging techniques used -- magnetic resonance imaging (MRI) and computed tomography (CT) -- appears to be slightly better, but researchers said the differences were not statistically significant. The rate of false positives for each of the three imaging techniques was similar.

"Thus, there is little evidence to support the routine use of 18F-FDG-PET to evaluate possible lymph node metastasis among patients with [head and neck squamous cell cancer] and a clinically negative neck," the authors wrote.

An accompanying editorial in the journal notes that clinicians typically use multiple imaging techniques and clinical examinations rather than a single test to compose a full picture of their patients condition and disease.

"Prospective data remain a critical necessity to translate imaging improvements with FDG-PET into proven treatment improvements," the editorialists wrote.

More information

The U.S. National Cancer Institute has more about head and neck cancers.



-- Kevin McKeever



SOURCE: Journal of the National Cancer Institute, news release, May 13, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Patients receive heart valve replacements without surgery using high-tech device
2. More than Seventy Percent of Top US Hospitals Control Patient Temperature with High-Tech Arctic Sun(TM)
3. Rh-Apo2L Named as One of Chinas High-Tech Transforming Products by Chinese Government
4. UCSF Medical Center using newest high-tech tool for brain disorders
5. National Network to End Domestic Violence Fund Introduces New Tool to Outsmart Abusers and Stalkers in Todays High-Tech World
6. High-tech CT scans: not a bad choice to test for clogged arteries
7. The Newest High-Tech Home Care Equipment and Services on Display!
8. 24 Hour Fitness Gives The Biggest Loser High-Tech Upgrade
9. Virginia Techs Raving First Year Results Lead to Additional High-Tech Antimicrobial Defense from SportCoatings(TM)
10. New Jersey Nets Shoot Down Staph with High-Tech Defense
11. Visage Imaging to Provide Fully Integrated Thin Client-Based Solution to Tufts Medical Center
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
High-Tech Imaging No Better for Diagnosing Head/Neck Cancers
(Date:6/27/2016)... Lafayette, California (PRWEB) , ... ... ... a pioneer in the patient payment industry today announced its strategic partnership ... and health system workflows. , The two companies’ proven, proprietary technology combine ...
(Date:6/26/2016)... (PRWEB) , ... June 27, 2016 , ... Quality metrics ... yet in many ways they remain in the eye of the beholder, according to ... a publication of The American Journal of Managed Care. For the full issue, ...
(Date:6/26/2016)... ... June 26, 2016 , ... PawPaws brand pet supplements ... was developed to enhance the health of felines. The formula is all-natural and is ... herbs in the PawPaws Cat Kidney Support Supplement Soft Chews are Astragalus ...
(Date:6/25/2016)... D.C. (PRWEB) , ... June 25, 2016 , ... ... discuss health policy issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, ... their work on several important health care topics including advance care planning, healthcare ...
(Date:6/25/2016)... ... 2016 , ... "With 30 hand-drawn hand gesture animations, FCPX users can easily ... of Pixel Film Studios. , ProHand Cartoon’s package transforms over 1,300 hand-drawn pictures ... . Simply select a ProHand generator and drag it above media or text in ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016  Global Blood Therapeutics, Inc. (GBT) (NASDAQ: ... novel therapeutics for the treatment of grievous blood-based ... closing of its previously announced underwritten public offering ... public offering price of $18.75 per share. All ... by GBT. GBT estimates net proceeds from the ...
(Date:6/24/2016)... 2016 Dublin ... addition of the " Global Markets for Spectroscopy ... This report focuses on the ... review, including its applications in various applications. The report ... includes three main industries: pharmaceutical and biotechnology, food and ...
(Date:6/24/2016)... , June 24, 2016 The Academy ... of recommendations that would allow biopharmaceutical companies ... with entities that make formulary and coverage decisions, a ... "value" of new medicines. The recommendations address ... not appear on the drug label, a prohibition that ...
Breaking Medicine Technology: