October
is National Breast Cancer Awareness Month and many women may feel relieved
after their annual mammograms come back clear, but what if finding a tumor on a
mammogram was like trying to find a polar bear in a snowstorm? As you get older your breast tissue becomes more dense.
Mammograms are harder to read when you have dense breast tissue (DBT). Unlike fatty tissue, which appears black on a mammogram, both
dense tissue and tumors appear white. A new law passed in New York, and 11
other states, requires mammography providers to inform women if they have dense
breast tissue, a charge led by Nancy Cappello of Connecticut. Cappello, now 60,
started getting annual mammograms at 40. When she was 51, a doctor found a lump
in her breast just six weeks after a mammogram appeared normal. A follow-up
mammogram did not detect it and she was told she had dense breast tissue, but
the cancer had already spread to 13 lymph nodes. Cappello underwent a mastectomy,
chemo and radiation. She believes that if she’d known about the density, she
would have had ultrasounds and/or MRIs and the tumor might have been found
earlier. In addition to the digital mammogram, the high-priced MRI and the
diagnostic ultrasound, the FDA has cleared several other tests that expand
these options:
Automated
Whole Breast Ultrasound
Radiologist
Kevin Kelly wanted to do for breast cancer what the pap smear did for cervical
cancer when he created the SonoCiné Automated Whole Breast Ultrasound (AWBUS)
screening test. The goal: finding cancer early and avoiding chemotherapy. The
AWBUS is able to find tiny, fast-growing invasive cancers (5-10mm in size) in
dense breast tissue using sound waves. An attached computer slowly moves the
transducer (held by the technician for pressure and alignment) across each
breast, taking three or four thousand images per scan to capture all the
tissue. The test takes about 20 minutes and can be read by the radiologist in
five (as opposed to the labor intensive manual screening ultrasound). Studies
have shown that AWBUS as an adjunct to mammography may be 100 times more
effective in finding cancers in dense breasts than can be found by mammography
alone. Benefits: no radiation, no compression, no injected dyes, safe for
pregnant women, helpful for high-risk women with dense breast tissue or
implants, false positives have decreased over time. Downsides: costs range from
$250-$400 per test, not shown to be as effective as the mammogram for detecting
calcified cancers like DCIS and not widely available yet. Insurance: not covered
by many companies. Available at: Central Park Women’s Imaging in Manhattan.
Breast
Thermography
Approved
by the FDA in 1982 as an adjunct to mammography, the thermogram is a
physiological screening test as opposed to an anatomical one. It monitors
changes in an individual’s thermal pattern, which is as unique as a
fingerprint, years before lesions develop. Tumors need blood and nutrients to
grow, thus blood vessels increase around compromised areas causing the surface
temperature of the breast to rise. An infrared camera records the skin’s
temperature by way of a colored digital image detecting vascularity,
inflammation and asymmetries. It is then read by a radiologist who might
recommend the patient for further testing if something appears suspicious. Long
Island physician assistant/thermographer Kristine Blanche applauds the
preventative aspects of the test with regard to issues like fibrocystic breast
disease. What she loves most about thermography is watching
women, especially with a family history, transform from being afraid to being
empowered. Benefits: no radiation, no compression, no injected dyes, safe for
pregnant women and for implants, good for young women with dense breast tissue,
has an average sensitivity of 90 percent (95 percent when used with other
tests), can detect the rare but aggressive inflammatory breast cancer (IBC).
Downsides: costs about $200, not good at detecting some small cancers or the
exact location of a tumor, not standardized. Insurance: not covered by many
companies. Available at: The Integrative Healing Center in Port Washington.
MicroDose
Mammography
Touted
as the “next generation of mammography,” the MicroDose Full Field digital
mammogram has been used in Europe and Asia for years. The MicroDose has 18 to
50 percent less radiation than other digital mammograms, which is good for
those who get tested annually (along with other X-rays) as the effects of
ionizing radiation are cumulative. A photon detector minimizes shadows,
allowing for higher quality images and the machine has a curved and warmed
surface. Benefits: low-dose radiation, better image quality, more comfortable,
five-minute exam time. Downsides: radiation, compression, may not be able to read
dense breast tissue, not widely available yet. Insurance: many insurers cover
the tests. Available at: Bergen Regional Medical Center in Paramus, NJ.
Tomosynthesis
(3D mammography)
This
test is an extension of a digital mammogram and is sometimes ordered for women
with dense breast tissue. The machine takes multiple images—25 exposures with
up to two pictures per second—that can be combined into a three-dimensional
picture in hopes of finding more tumors than the standard test. The jury is
still out on whether or not it finds more cancers than the traditional
mammogram. For one, Dr. Susan Love, nationally recognized women’s health expert
and surgeon, questions if avoiding a few false positives is worth two to three
times as much radiation. Benefits: overlapping tissue doesn’t obscure the
inside of the breast, less repeat testing when standard mammograms are
questionable. Downsides: two to three times more radiation than a standard
mammogram, compression, density can still be an issue. Insurance: not always
covered. Available at: Good Samaritan Hospital in West Islip.
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