Navigation Links
Molecular imaging holds promise for early intervention in common uterine cancer
Date:10/1/2009

Reston, Va.A promising new molecular imaging technique may provide physicians and patients with a noninvasive way to learn more information about a type of cancer of the uterus lining called "endometrial carcinoma"one of the most common malignant female tumors. This research was presented in a study published in the October issue of The Journal of Nuclear Medicine.

"Endometrial carcinoma is one of the most common female malignant tumors," says Hidehiko Okazawa, M.D., Ph.D., professor in the division of medical imaging at the biomedical imaging research center at the University of Fukui in Japan and one of the lead researchers of the study. "The method of positron emission tomography (PET) imaging we used in the study is noninvasive, and it has tremendous potential to save women with endometrial carcinoma from undergoing unnecessary operations and biopsies that could sabotage their reproductive potential."

If the disease is caught early enough, the five-year survival rate is higher than 90% for patients with endometrial carcinoma. PET imaging may provide physicians with a tool that lets them recognize the extent of the disease before it reaches advanced stages.

This study shows that PET is a promising molecular imaging technique for personalized therapy. Molecular imaging and nuclear medicine provide the possibility of determining the invasiveness and aggressiveness of malignant tumors in the uterus earlier on, before disease progresses. With this technique, physicians gain the advantage of a more precise diagnosis along with the ability to better predict the tumor's growth patterns and plan for the most appropriate therapeutic treatment strategy.

"The article in the JNM from Dr. Tsujikawa and colleagues provides an example of the unique capacity of molecular imaging to measure in vivo cancer biology," says David A. Mankoff, M.D., Ph.D., professor of radiology, medicine and bioengineering at the University of Washington and Seattle Cancer Care Alliance in Seattle. "Most notably, it shows how imaging multiple facets of tumor phenotypein this case, estrogen receptor expression and glucose metabolismcan provide insight into the clinical behavior of cancer. The broad implication of this study, and other similar studies that have tested PET and molecular imaging to characterize cancer characteristics, is that imaging can help direct cancer patients toward optimized, individualized treatments."

In the study, the researchers used a specialized form of PET imaging called "estrogen receptor expression imaging" for 22 patients with endometrial adenocarcinoma and nine patients with endometrial hyperplasia (a thickening of the uterine lining that is a risk factor for developing endometrial cancer) to evaluate diagnostic accuracy. All patients underwent preoperative PET scans with 18F-fluoroestradiol (18F-FES)a tracer that has been successfully used in diagnosing breast cancerand 18F-fluorodeoxyglucose (18F-FDG) to compare differences in tracer accumulation.

The researchers confirmed that endometrial carcinoma reduces estrogen dependency with accelerated glucose metabolism as it progresses to a higher stage or grade. By combining the two tracers, researchers were able to use a new index of uptake ratio that can better predict pathologic stages and aggressiveness of tumors. The results of the study were encouraging, with the combined techniques having 86% accuracy.

For endocrine-related tumors (including endometrial cancer), tumors vary from well-differentiated and close in character to the tissue of origin to poorly differentiated tumors, which are aggressive and bear less resemblance to the tissue of origin. The well-differentiated tumors tend to be more slow-growing and less aggressive than poorly differentiated tumors. They also retain their endocrine function and/or responsiveness.

For endometrial cancer, estrogen receptor expression is related to endocrine responsiveness and indicated by FES uptake. Poorly differentiated tumors often have increased and abnormal breakdown of glucose, indicated by FDG. The combination of the two, as indicated by the study, was better than either alone at indicating the aggressiveness of the tumor.

Personalized cancer therapy involves treatment that is individualized for patients based on patient characteristics and the tumor's biology. By studying the tumor's properties, physicians can predict the tumor's path and formulate the best strategy for treating the disease.


'/>"/>

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

Related medicine news :

1. Reportlinker Adds Whos Doing What in Molecular Diagnostics? - Kalorama / Emmes Survey of US Laboratories Report
2. Reportlinker Adds H1N1 (Swine Influenza) Market Assessment (Latest Data, Company Profiles, Implications for Immunoassays and Molecular Assays) Report
3. News from the Latest Issue of Molecular Medicine
4. Inner workings of molecular thermostat point to pathways to fight diabetes, obesity
5. Team reveals molecular mechanism underlying a form of diabetes
6. Cost Effective Solution for Patient Testing: Introducing Comprehensive and Affordable Molecular Diagnosis With Verifiable Accuracy
7. Abbott Introduces Molecular Diagnostic System Intended for Broad Identification of Infectious Agents
8. Enigma Diagnostics Announces Signing of Patent Licenses With Roche Molecular Systems, Inc.
9. Dynamic molecular mechanism to keep brain activity stable
10. Cepheid Receives FDA Clearance for First On-Demand Molecular Diagnostic Test for Clostridium difficile Infection
11. News from the Latest Issue of Molecular Medicine Kicking The Habit - It's In The Genes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... The International Association of Eating ... excellence for the field of eating disorders, announces the opening of early registration ... Orlando, Florida at the Omni Resort at ChampionsGate. , The annual ...
(Date:10/13/2017)... ... October 13, 2017 , ... Apple Rehab Shelton Lakes , which specializes ... of the facility as part of a disaster drill on October 3rd. , Apple ... Shelton City Emergency Manager, as well as the Connecticut Long Term Care Mutual ...
(Date:10/13/2017)... ... 2017 , ... Global Healthcare Management’s 4th Annual Kids Fun Run brought out ... free event, sponsored by Global Healthcare Management’s CEO, Jon Letko, is aimed at getting ... children of all ages; it is a non-competitive, non-timed event, which is all about ...
(Date:10/13/2017)... , ... October 13, 2017 , ... “The Journey: From ... every danger possible to save lost souls in the Philippines. “The Journey: From the ... is a dedicated teacher of the Bible. She has taught all ages and currently ...
(Date:10/12/2017)... ... October 12, 2017 , ... Planet Fitness, one of the largest and fastest ... to open a flagship location in Covington, LA at 401 N. U.S. Highway 190, ... next to Office Depot in the Holiday Square shopping center. Its location allows it ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... Calif. , Oct. 11, 2017  BioPharmX Corporation ... scientific team that developed an innovative way to use ... of the delivery of new drugs. ... Fall Clinical Dermatology Conference will show how researchers from ... Hospital, Harvard Medical School used a suite of imaging ...
(Date:10/10/2017)... , Oct. 10, 2017   West Pharmaceutical Services, ... solutions for injectable drug administration, today shared the results ... Adapter for improving the intradermal administration of polio vaccines. ... Vaccination Summit in May 2017 by Dr. Ondrej ... Department, World Health Organization (WHO), and recently published in ...
(Date:10/4/2017)... LAWRENCE, Mass. , Oct. 4, 2017 /PRNewswire/ ... developer of single-use, self-contained, illuminating medical devices, today ... National Health Surveillance Agency (or Agência Nacional ... ®. The first single-use, cordless surgical retractor with ... ONETRAC provides optimal access, illumination and exposure of ...
Breaking Medicine Technology: