Navigation Links
PET Scanner detects more Vaginal cancer than CT scans

PET scans can detect twice the number of vaginal cancer and cancerous lymph//nodes than CT scans. This was the finding from researchers at Washington University School of Medicine in St. Louis. An article has appeared in the July 1st issue of the ‘International Journal of Radiation Oncology, Biology, Physics’ and this may change the future gold standard for early detection of cancers of this region. According to study author Perry W. Grigsby, M.D., professor of radiation oncology and radiology, ‘The results of this study suggest that the use of PET, or positron emission tomography, would make diagnosis of vaginal cancer much more accurate and allow better selection of treatment’.

The vaginal cancer progresses in the known fashion, and if the staging of the tumour can be accurately predicted before treatment were to start the doctors can be sure of the modality of the treatment and where to target radiation treatment.

"In 1999, we began publishing papers showing that PET scans picked up more cancerous lymph nodes in patients with cervical cancer," Grigsby says.

PET scans and CT scans have different methods of detecting tumours. The CT scan obtains cross-sectional views of the body by detecting the amount of X-rays that pass through the body's tissues. CT scans can miss small tumors, whereas PET scans detect radioactivity that emanates directly from a tumor after a patient has received a dose of radioactive glucose, which accumulates in tumors. Hence even tiny tumors will collect enough "hot" glucose to show up on the PET scan.

"CT scans are useful in many cases, but they have a limit to their resolution," says Grigsby, who sees patients at the Siteman Cancer Center and is affiliated with Barnes-Jewish and St. Louis Children's Hospitals. "When you're evaluating lymph nodes for cancer using CT, the node has to be at least a centimeter for it to be considered abnormal. But PET scans can detect much smaller nodes that ha ve cancerous cells."

Both vaginal and cervical cancers are caused by the presence of human papillomavirus. However cervical cancers are common but vaginal cancers account for only 1 percent of gynecological malignancies. According to Grigsby, if cervical cancer has not spread beyond its primary site, about 90 percent of patients will survive. The rate of survival drops to 70 percent if the cancer has spread to lymph nodes in the pelvis and even further to 30 to 40 percent if it has gone beyond the pelvic nodes. "It is very important to know at the time of diagnosis, for both cervical and vaginal cancer, not only what the patient has in the pelvis, but where the tumor has spread," Grigsby says. "That will absolutely determine the kind of treatment."

Reference: Lamoreaux WT, Grigsby PW, Dehdashti F, Zoberi I, Powell MA, Gibb RK, Rader JS, Mutch DG, Siegel BA. FDG-PET evaluation of vaginal carcinoma. International Journal of Radiation Oncology, Biology, Physics. July 1, 2005;62(3):733-77,

Related medicine news :

1. Detecting Brain Abnormalities in Babies Using New Brain Scanners.
2. New Portable Helmet Scanner To Examine Newborns
3. Skin Cancer Clinics under the Scanner
4. Healthy Step : 7000 (S)caught under the Scanner
5. Hospitals In India Opt For High-tech Scanners
6. Premier Army Hospital Acquires PET-CT Scanner
7. 64-Slice CT Scanner Is More Heart Friendly
8. Drug Coated Stents Under the Scanner
9. MEG Scanners Are Mega Powerful
10. Prototype Detector detects Anthrax Quickly
11. Vaginal Birth After C-section Dangerous For Both Mother And Baby
Post Your Comments:

(Date:6/26/2016)... ... ... blind and certified personal trainer is helping to develop a weight loss fitness plan that ... the two major problems leading the fitness industry today:, , All ... They don’t eliminate all the reasons people quit their exercise program , ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, at the Hynes ... important health care topics including advance care planning, healthcare costs and patient and ...
(Date:6/25/2016)... ... June 25, 2016 , ... The temporary closing of Bruton Memorial Library on June 21 due ... up a new, often overlooked aspect of head lice: the parasite’s ability to live away ... a common occurrence, but a necessary one in the event that lice have simply gotten ...
(Date:6/25/2016)... , ... June 25, 2016 , ... First Choice ... States, named Dr. Sesan Ogunleye, as the Medical Director of its new Mesquite-Samuell Farm ... Medical Director of our new Mesquite location,” said Dr. James M. Muzzarelli, Executive Medical ...
(Date:6/25/2016)... , ... June 25, 2016 , ... ... and non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as a ... area —Johnson is one of the first doctors to perform the treatment. Orthobiologics ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... , June 26, 2016 ... care operating models within the health care industry is ... financial efficiency , Deloitte offers a suite of ... business issues impacting efficient cost optimization: labor resource analysis, ... These services facilitate better outcomes and better economics ...
(Date:6/24/2016)... Dublin ... of the " Global Markets for Spectroscopy Equipment" ... This report focuses on the global ... including its applications in various applications. The report deals ... three main industries: pharmaceutical and biotechnology, food and beverage, ...
(Date:6/24/2016)... June 24, 2016 Research and Markets ... for Companion Diagnostic Tests" report to their offering. ... Companion Diagnostics The World Market for Companion ... medicine diagnostics. Market analysis in the report includes the following: ... (In Vitro Diagnostic Kits) by Region (N. America, EU, ROW), ...
Breaking Medicine Technology: