"Digital Mammography a Leap Forward for Women; New
Screening Method Faster, More Accurate, Produces Less
Radiation", (c) Johanna King, Albuquerque Journal,
29 April 2008The number of women having
breast cancer screenings on a regular basis has declined in recent years,
experts agree.
New technology may not be enough of an incentive to get women back into
the screening rooms. But the director of diagnostic imaging for Lovelace
Women's Hospital figures talking about digital mammography just might help
raise awareness.
"People think cancer of the breast is on a decline, but it's not," says
Barbara Becker, who oversees operation of the new technology installed at
the hospital a couple of months ago.
Becker says digital mammography, which replaces the traditional analog
system, makes mammograms more accurate for many patients, and faster for
almost all.
"We can get you in and out and on your way in 15 minutes," says Becker.
And, she says, the images are sharper, easier to read, take less
radiation, require little patient preparation and help reduce
inconvenience.
Computer image
Digital mammography, also called full-field digital mammography, uses a
process similar to digital photography that produces images of the breast
that can be seen on acomputer screen. Computer software can then search
the image for abnormal areas of density, mass or calcification that may
indicate the presence of cancer.
Becker says the digital images are clearer and easier to adjust than
the older film images. A radiologist has the ability to lighten or darken
the image, adjust its contrast and zoom in to study a possible problem
area.
Dr. Gary Wood, president and director of breast imaging for Radiology
Associates of Albuquerque, agrees that digital imaging is more accurate
for many women. He cites a study that found detection rates had improved
by as much as 28 percent for women with dense breasts or who were
premenopausal or perimenopausal.
Those statistics, combined with good business sense, were reasons RAA
was the first in Albuquerque to begin offering digital mammograms nearly a
year ago, says Wood. The business recently was designated by the American
College of Radiology as a Breast Imaging Center of Excellence, the first
and only facility in the state to receive such recognition, Wood says.
"We did it because we thought it was the best thing to do for patient
care," the doctor says. "Digital is one more tool that allows us to be
state of the art."
Wood blames the national decline in mammograms on several factors:
decreased public attention to breast cancer awareness, a drop in the
number of people insured and insurance companies that are now requiring
deductibles for the screenings. He isn't convinced that converting to
digital technology will improve screening compliance, but it might help
get the discussion going again.
Becker and Wood agree there is a practical side to digital mammography
as well. The results are easier to store and access, they say.
Half the time
The digital mammograms also allow for quicker exams, Becker says, which
can be beneficial for patients and facilities alike.
She says an analog mammogram took 30 to 40 minutes, most of that time
spent waiting to see if the image came out OK. Because digital imaging is
almost immediate, that time has been cut in half. That's nice for
patients; it's also good for places like the Lovelace Women's Center,
which can now book more than 1,000 mammograms a month.
RAA schedules mammograms every 10 minutes. Wood says the facility has
done more than 42,000 mammograms since converting to digital.
Becker says the digital technology also allows physicians quicker and
easier access to screening results. With the appropriate software, which
Lovelace will provide for free, physicians can have the results sent to
them online and then review them at their convenience in their offices.
However, Wood warns that these doctors should have high-resolution
monitors and experience reading mammograms.
Digital mammography is more expensive than its predecessor, and the
price patients are charged reflects the cost increase. Lovelace increased
its fee by about $12, to $200, to cover the expense, Becker says, adding
that annual screenings typically are covered by insurance.
Because the technology is expensive, few facilities in the state have
made the transition to digital mammography. Wood says a digital machine
costs about $400,000, compared to $80,000 for the analog machines. "You've
got to be able to do high volume" to justify the cost, he says.
He says women in areas that don't have access to digital mammograms
shouldn't lose faith in the older system. It's important that women
continue to get screened for breast cancer, Wood says, recommending that
women age 40 and older have a mammogram once a year.
Breast cancer is still the second-leading cause of cancer death for
women, and statistics show that when it is discovered early, there is a 95
percent cure rate, he says.