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A new study conducted by the American College of Radiology The American College of Radiology (ACR), founded in 1923, is a non-profit professional medical organization composed of diagnostic radiologists, radiation oncologists, interventional radiologists, nuclear medicine physicians, and medical physicists.  Imaging Network (ACRIN ACRIN American College of Radiology Imaging Network (r)) and the Gynecologic Oncology Group The Gynecologic Oncology Group (GOG) is a non-profit organization funded by the National Cancer Institute with the purpose of supporting research for the prevention and treatment of all gynecologic cancers, such as ovarian cancer, cervical cancer, endometrial cancer, vulvar cancer,  (GOG) is now underway to evaluate the ability of positron emission tomography positron emission tomography: see PET scan.
positron emission tomography (PET)

Imaging technique used in diagnosis and biomedical research.
 (PET)/computed tomography (CT) with Fluorodeoxyglucose (FDG-PET/CT) and MRI 1. (application) MRI - Magnetic Resonance Imaging.
2. MRI - Measurement Requirements and Interface.
 with the contrast agent Combidex (ferumoxtran-10) to identify pelvic and abdominal lymph node metastases Metastasis (plural, metastases)
A tumor growth or deposit that has spread via lymph or blood to an area of the body remote from the primary tumor.

Mentioned in: Malignant Melanoma
 in patients with locoregionally advanced cervical cancer.

According to study investigators, FDG-PET/CT and Combidex MRI offer promise for finding cancers that may presently go undiagnosed. "Currently, we try to diagnose lymph node metastases by size. This method has low specificity and low sensitivity," said ACRIN principal investigator for the trial, Mostafa Atri, M.D., of the University Health Network/Mount Sinai Hospital at the University of Toronto Research at the University of Toronto has been responsible for the world's first electronic heart pacemaker, artificial larynx, single-lung transplant, nerve transplant, artificial pancreas, chemical laser, G-suit, the first practical electron microscope, the first cloning of T-cells, , Canada. "MRI with Combidex works differently. The contrast agent is absorbed by normal nodes, but not by the component of lymph node infiltrated by cancer. We see the cancer as defects in the lymph node. For PET, metastases appear as increased activity."

Approximately 10 ACRIN-approved sites will work in collaboration with a GOG member institution to accrue 325 participants within three years. All participants will undergo lymph node sampling to determine the accuracy of the imaging exams. Michael Gold, MD, of the University of Oklahoma University of Oklahoma, abbreviated OU, is a coeducational public research university located in the U.S. state of Oklahoma. Founded in 1890, it existed in Oklahoma Territory near Indian Territory 17 years before the two became the state of Oklahoma. , is the GOG study chair.

"Both imaging modalities can also be used with other cancers. Knowing the involvement of lymph nodes is important for the treatment of all cancer patients. If this study shows these modalities work for cervical cancer in a multicenter trial, it could lead to future research that would benefit many different cancer patients," said Atri.

Please visit for more information on this trial.

The American College of Radiology Imaging Network (ACRIN) is a National Cancer Institute Clinical Trials Cooperative Group. It is made up of investigators from over 100 academic and community-based medical facilities in the United States and several international institutions. ACRIN's mission is to develop information, through clinical trials of diagnostic imaging and image-guided therapeutic procedures, that will result in: 1) the earlier diagnosis of cancer, 2) allaying the concerns of those who do not have cancer, and 3) improved quality and increased length of life for cancer patients.

For more information, visit or call 703/648-8936 or 800/227-5463, ext. 4936.

The American College of Radiology (ACR See riser card. ) is a national professional organization serving more than 32,000 diagnostic radiologists, radiation oncologists, interventional radiologists, nuclear medicine physicians and medical physicists, with programs focusing on the practice of radiology and the delivery of comprehensive health care services.

For more information, visit
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Publication:Imaging Update
Date:Nov 1, 2007

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