Featured Research

from universities, journals, and other organizations

PET imaging determines malignancy in potential ovarian cancer cases

Date:
June 6, 2011
Source:
Society of Nuclear Medicine
Summary:
A new study may provide a novel tool for detection of malignant-stage ovarian cancer. Researchers found that positron emission tomography and computed tomography (PET/CT), which images both functional and anatomical changes in the body, was useful for preoperative cancer imaging of ovarian masses when used with a radiotracer that is actively metabolized by cells as fuel. Physicians imaging patients suspected of having malignant tumors can see where cancerous cells are hyper-metabolizing the tracer and accurately predict whether a mass is malignant, cancerous but stable, or benign.

A study presented at SNM's 58th Annual Meeting may provide a new tool for detection of malignant-stage ovarian cancer. Researchers found that positron emission tomography and computed tomography (PET/CT), which images both functional and anatomical changes in the body, was useful for preoperative cancer imaging of ovarian masses when used with a radiotracer that is actively metabolized by cells as fuel. Physicians imaging patients suspected of having malignant tumors can see where cancerous cells are hyper-metabolizing the tracer and accurately predict whether a mass is malignant, cancerous but stable, or benign.

"We found that PET/CT imaging with the radiotracer 18F-FDG gave us beneficial information about the ovarian cancer stage that helped gynecologists in their treatment planning," says Majbritt Frost, research technologist and lead author of the study at Aalborg Hospital Danmark in Aalborg, Denmark. "This research is important because it gives gynecologists and oncologists the opportunity to provide these women the best possible course of treatment. We were also able to find additional tumors, resulting in patient referral to the appropriate medical specialist."

The American Cancer Society estimates that more than 21,800 American women were diagnosed with ovarian cancer and approximately 13,850 women died from the disease in 2010.

This study was conducted to explore PET imaging with a radiotracer that combines a fluorine-based medical isotope with fluorodeoxyglucose (18F-FDG), which mimics glucose as a source of energy, to determine the malignancy of adnexal masses. These are lumps in the tissue of the adnexa, or connected structures of the uterus. Most commonly these masses affect the ovaries and fallopian tubes, but they can also develop within supporting tissues. PET imaging with 18F-FDG was able to ascertain whether lumps were malignant, because cancerous tissues are far more metabolically active than normal cells and this hyperactivity shows up as "hot spots" on PET scans.

For the purposes of this research, 104 patients with a mean age of 62 years presenting adnexal masses with the potential for ovarian cancer were imaged using PET/CT with the radiotracer 18F-FDG prior to surgery. Results of the scans were classified as either benign or malignant and were then compared to surgical findings. Preliminary research shows that 18F-FDG PET/CT was able to successfully detect 84 percent of benign and malignant tumors for these patients.

The ability to detect ovarian cancer expands hybrid molecular imaging in the field of gynecology. Already molecular imaging is useful for the staging of cervical cancer, and continuing research may one day open the door for the staging of endometrial and other cancers for women.


Story Source:

The above story is based on materials provided by Society of Nuclear Medicine. Note: Materials may be edited for content and length.


Cite This Page:

Society of Nuclear Medicine. "PET imaging determines malignancy in potential ovarian cancer cases." ScienceDaily. ScienceDaily, 6 June 2011. <www.sciencedaily.com/releases/2011/06/110606131721.htm>.
Society of Nuclear Medicine. (2011, June 6). PET imaging determines malignancy in potential ovarian cancer cases. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2011/06/110606131721.htm
Society of Nuclear Medicine. "PET imaging determines malignancy in potential ovarian cancer cases." ScienceDaily. www.sciencedaily.com/releases/2011/06/110606131721.htm (accessed September 18, 2014).

Share This



More Health & Medicine News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Artificial Sweetener Could Promote Diabetes

Artificial Sweetener Could Promote Diabetes

Newsy (Sep. 17, 2014) Doctors once thought artificial sweeteners lacked the health risks of sugar, but a new study says they can impact blood sugar levels the same way. Video provided by Newsy
Powered by NewsLook.com
Ebola Vaccine Trial Gets Underway at Oxford University

Ebola Vaccine Trial Gets Underway at Oxford University

AFP (Sep. 17, 2014) A healthy British volunteer is to become the first person to receive a new vaccine for the Ebola virus after US President Barack Obama called for action against the epidemic and warned it was "spiralling out of control." Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Obesity Rates Steady Even As Americans' Waistlines Expand

Obesity Rates Steady Even As Americans' Waistlines Expand

Newsy (Sep. 17, 2014) Researchers are puzzled as to why obesity rates remain relatively stable as average waistlines continue to expand. Video provided by Newsy
Powered by NewsLook.com
President To Send 3,000 Military Personnel To Fight Ebola

President To Send 3,000 Military Personnel To Fight Ebola

Newsy (Sep. 16, 2014) President Obama is expected to send 3,000 troops to West Africa as part of the effort to contain Ebola's spread. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins