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Thermography
A Painless Adjunct to Mammograms
By Hugh O. Smith PhD
Millions of women this year will endure the pain and radiation of a mammogram not realizing that they have a safe, painless, radiation free, FDA approved alternative.
Thermography or as it is also called, Digital Infrared Thermal Imaging (DITI) is a technology so advanced that it is also used to detect many other physiological issues such as inflammatory breast disease which a mammogram cannot.
Thermography is a 30 year old proven technology that uses an individual’s unique heat signature to detect possible pathologies such as breast cancer. Cancer cells double in size every 90 days. Thermography can detect possible cancer at 256 cells or 2 years. A mammogram requires over 4 billion cells or 8 years to detect cancer. That gives a woman a six year head start on early detection and treatment. The key, as any doctor will advise, is early detection and intervention.
Researchers from the Ville Marie Breast Center examined infrared imaging in 100 women with non invasive stage I and II breast cancer. In this study, the 84% sensitivity
rate of mammography alone was increased to 95% when infrared imaging was added, John R. Keyserlingk, MD, a surgical oncologist at Ville Marie, said in his presentation of the findings at the recent American Society of Clinical Oncology annual meeting.1
Mammography and ultrasound depend primarily on structural distinction and anatomical variation of the tumor from the surrounding breast tissue, Dr Keyserlingk said, “Infrared imaging detects minute temperature variations related to vascular flow and can demonstrate abnormal vascular patterns associated with the initiation and progression of tumors.”
“The new generation of diagnostic infrared technology, Dr. Keyserlingk said, “owes much to a decade of military research and development. "In July 1995, we installed a
fully integrated high-resolution infrared station," he told ONCOLOGY NEWS INTERNATIONAL. The software allows high - precision pixel temperature measurements.”
The new generation of equipment measures a difference in body temperature of 1/100th of a degree. Thermography relies on the fact that every person’s heat signature is unique and that any variation in the signature may signal a pathology.
Cancer produces its own blood vessels in a process called angiogenesis. These are the “feeder” systems for cancer that rely on sugar to survive. Thermography can detect these anomalies sometimes as far in advance as 6 years before a mammogram. This gives the patient a huge jump on the disease. Additionally, thermography can detect inflammatory breast disease (IBD) when mammography cannot.
In their study, Dr. Keyserlingk and his colleagues, Paul Ahlgren, MD, a medical oncologist, and Edward Yu, MD, a radiation oncologist, reviewed 100 successive patients
referred to the Ville Marie Breast Center between August 1995 and December 1996 who were subsequently found to have histologically proven noninvasive ductal carcinoma in situ (four patients) or stage I or II invasive breast cancer (96 patients).
All patients had undergone preoperative clinical examination, mammography, and infrared imaging.
Clinical examination alone was positive in 61% of the study patients. Mammography was highly suspicious in 65% of patients, with an additional 19% having contributory but nonspecific (intermediate) mammography findings. Infrared imaging was considered abnormal in 83% of patients.
Of the 39 patients with negative clinical examinations, 31 had at least one major abnormal infrared sign, and infrared was the major indication of a potential abnormality in 15 of these patients who also had a negative or intermediate mammogram.
By performing thermography years before conventional mammography, a selected patient population at risk can be monitored more carefully, and thereby accurately utilize mammography or ultrasound as soon as is possible to detect the actual lesion - (once it has grown large enough and dense enough to be seen on mammographic film), can increase the patients treatment options and ultimately improve the outcome.
It is in this role that thermography provides its most practical benefit to the general public and to the medical profession. It is certainly an adjunct to the appropriate usage of mammography and not a competitor. In fact, thermography has the ability to identify patients at the highest risk and actually increase the effective usage of mammographic imaging procedures.
Thermography, with its non-radiation, non-contact and low-cost basis has been clearly demonstrated to be a valuable and safe early risk marker of breast pathology, and an excellent case management tool for the ongoing monitoring and treatment of breast disease when used under carefully controlled clinical protocols.
1 American Society of Clinical Oncology 20: 2001 (abstract 1812 |