Navigation Links
PET scans useful for some cancer treatment, but how do patients fare?
Date:11/12/2007

Positron emission tomography or PET scans can help clinicians diagnose and treat some cancers, but it is not clear yet whether the imaging technology helps people with cancer live longer and healthier lives, according to a comprehensive review by the U.K. National Health Service.

PET scans are one of the latest tools used to detect and determine a cancers activity in the body. PET is generally more accurate than other imaging technologies such as computerized tomography (CT) or magnetic resonance imaging (MRI) scans. Using tiny radioactive elements, a PET scan can zero in on the distinctive biochemical fingerprints that distinguish cancerous cells from normal tissue.

The most common type of PET scan, called FDG-PET, appears to lead to the best therapy for patients who have a newer diagnosis of non-small cell lung cancer and in those who have undergone treatment for Hodgkins lymphoma. FDG-PET can also help identify the best treatment for patients with colorectal cancer, and it can detect small, potentially malignant lung growths called solitary pulmonary nodules, say review authors led by Karen Facey.

For other cancers, PET can often improve the accuracy of detecting a tumor, but it is unclear how this affects a patients treatment and ultimately their outcome, said Facey, an evidence-based health policy researcher.

The most reliable evidence would suggest that FDG-PET is cost-effective [in the United Kingdom] in non-small cell lung cancer and Hodgkins lymphoma, she added.

Facey said this is the first comprehensive review of PET for determining how well patients are responding to chemotherapy and for determining the sites for radiation therapy.

It has identified many interesting new studies, but these are difficult to interpret given their different designs, so theres a real need for larger, better quality studies of this kind to be performed in the U.K., she said.

The review is published in the latest issue of Health Technology Assessment, the international journal series of the Health Technology Assessment programme, part of the National Institute for Health Research in the United Kingdom.

Facey and colleagues combed through the results of six systematic reviews and 158 primary studies that examined the effect of PET scans on the management of breast, colorectal, head and neck, lung, lymphoma, melanoma, esophageal and thyroid cancers.

For instance, did PET scans diagnose these cancers better than an MRI or CT scan" Could a PET scan give a better idea of a cancers severity or spread" Would they be better than other imaging techniques at detecting the recurrence of a cancer or monitoring a tumors response to treatment"

For many of the cancers examined in the review, the answers are still inconclusive and require larger, more careful study, the HTA authors found.

While research continues, physicians are already using combination PET/CT scans to help diagnose and treat cancer patients. Facey and colleagues also reviewed this new technology and say that the PET/CT scans appear to be slightly more accurate so far.

In September, the Society of Nuclear Medicine, whose members use PET technology, updated its scope of practice guidelines to reflect this trend.

Since many of the state-of-the-art nuclear medicine cameras as well as PET scanners have CT scanners attached to them, performing CT scans becomes one of the nuclear medicine technologists tasks, said Cindi Luckett-Gilbert, the chair of the societys special task force on the scope of practice.


'/>"/>

Contact: Lisa Esposito
hbns-editor@cfah.org
Center for the Advancement of Health
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. Study suggests existing drugs may be useful in treating brain tumors
6. CAD plus MDCT useful in finding lung nodules
7. Conventional prognostic factors fail to explain better prostate cancer survival in most Asian men
8. Survival differences by race most apparent in advanced stages of breast cancer
9. MRI finds breast cancer before it becomes dangerous
10. Investigators uncover intriguing clues to why persistent acid reflux sometimes turns into cancer
11. Pathway links inflammation, angiogenesis and breast cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/11/2016)... ... February 11, 2016 , ... Atlantic Information Services, ... Benefit Model: A Case Study for Plans and Purchasers.” Executives from Intel Corp. ... with Intel on value-based health benefits program Connected Care, will discuss the challenges ...
(Date:2/11/2016)... ... February 11, 2016 , ... ... speaker, trainer and author Ray Clarke poses a question as a challenge for ... In his book, "Being in the Being" (published by Partridge Singapore), Clarke explores ...
(Date:2/11/2016)... ... February 11, 2016 , ... Greenfield Insurance Group in Orange ... assist the people of their local community. The agency pledges to select a ... Their hope is to bring awareness to important local causes with fundraising and ...
(Date:2/11/2016)... (PRWEB) , ... February 11, 2016 , ... ... multi-specialty practice Village Family Practice , will be presenting at the 2016 ... in Las Vegas, Nev. , During his session, “ Coding for Care: ...
(Date:2/11/2016)... ... 11, 2016 , ... The annual list showcases the 20 Most Promising SharePoint ... dedication and commitment to the SharePoint ecosystem. A panel of experts and members ... is to recognize and promote technology entrepreneurship. , The survey was made at ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... de fevereiro de 2016  A Proliant Biologicals ... de soroalbumina bovina (BSA -- Bovine Serum ... na Ilha Norte da Nova Zelândia, em Feilding. ... na fábrica da Proliant nos EUA, localizada em ... e instalação dos equipamentos foram feitos de forma ...
(Date:2/11/2016)... Transformational M&A achieved through NPS and Dyax acquisitions and the ... achieved through NPS and Dyax acquisitions and the announced combination ... through NPS and Dyax acquisitions and the announced combination with ... robust pipeline in Shire , s history   ... pipeline in Shire , s history   ...
(Date:2/11/2016)... , February 11, 2016 Breast Cancer ... the Asia-Pacific (APAC) breast cancer market ... $3.4 billion by 2021, at a Compound Annual Growth Rate ... Asia-Pacific Markets to 2021 - states that the ... considerable expansion from $1.9 billion in 2014 to $3.4 billion ...
Breaking Medicine Technology: