"Digital Mammography a Leap Forward
for Women; New Screening Method Faster, More Accurate,
Produces Less Radiation", (c) Johanna King, Albuquerque
Journal, 29 April 2008
The 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.