Journal Express, Knoxville, IA

CNHI/SE Iowa

October 10, 2012

3-D mammograms offer new screening option

Mammograms have entered a new dimension, literally. At some screening centers, women are now being offered a 3-D technology that costs more and involves more radiation but may provide a better look.

The Food and Drug Administration approved the 3-D mammography device in 2011, and the technique is becoming more common.

Radiologists who use 3-D, also known as tomosynthesis, say its drawbacks are worth the greater accuracy. By itself, 3-D mammography delivers about the same amount of radiation as standard digital 2-D mammograms. But when the FDA approved the new device, it said 3-D could be used only as an add-on to standard mammograms, essentially doubling the low radiation dose. The FDA made 3-D an add-on only because there is not enough information yet about whether 3-D screenings detect cancers as well as 2-D mammograms do. Therefore, 2-D remains the standard of care and provides unique benefits for clinicians, such as familiarity and the ability to compare images from previous years.

"The 3-D image doesn't replace the standard 2-D mammogram," says Julianne Greenberg, a radiologist at Washington Radiology Associates, which has begun telling women who come in for their standard 2-D screening that they can add a 3-D mammogram to it for $50. "Three-D is added value to an already existing, really good technology."

In a conventional mammogram, the breasts are compressed and X-rayed four times: side to side and top to bottom, for both the left and the right breast. To take the 3-D images, an arm of the machine sweeps in an arc around the breast during each of the four compressions, taking anywhere from 20 to 60 pictures to produce a 3-D rendering of the breast. These images look almost like holograms; radiologists can spin and flip them around on a computer screen, searching for cancer in the tissue and lymph nodes.

Text Only
CNHI/SE Iowa
  • Why a see-through mouse is a big deal for scientists

    A group of Caltech researchers announced in Cell Thursday their success in making an entire organism transparent. Unfortunately, this isn't any kind of "Invisible Man" scenario: The organism in question is a mouse, and the mouse in question is quite dead.

    July 31, 2014

  • Screen Shot 2014-07-31 at 2.12.55 PM.png VIDEO: Five-year-old doesn't want her brother to grow up

    Sadie, an adorable 5-year-old from Phoenix, wants her brother to stay young forever, so much so that her emotional reaction to the thought of him getting older has drawn more than 10 million views on YouTube.

    July 31, 2014 1 Photo

  • lockport-police.jpg Police department turns to Facebook for guidance on use of 'negro'

    What seems to be a data entry mistake by a small town police department in western New York has turned into a social media firestorm centered around the word "negro" and whether it's acceptable to use in modern society.

    July 31, 2014 3 Photos

  • The virtues of lying

    Two computational scientists set out recently to simulate the effects of lying in a virtual human population. Their results, published in the Proceedings of the Royal Society B, show that lying is essential for the growth of a cohesive social network.

    July 31, 2014

  • Sunburn isn't the only sign of summer that can leave you itchy and blistered

    You've got a rash. You quickly rule out the usual suspects: You haven't been gardening or hiking or even picnicking, so it's probably not a plant irritant such as poison ivy or wild parsnip; likewise, it's probably not chiggers or ticks carrying Lyme disease; and you haven't been swimming in a pond, which can harbor the parasite that causes swimmer's itch.

    July 30, 2014

  • Survey results in legislation to battle sexual assault on campus

    Missouri U.S. Sen. Claire McCaskill joined a bipartisan group of senators Wednesday to announce legislation that aims to reduce the number of sexual assaults on college campuses.

    July 30, 2014

  • An alarming threat to airlines that no one's talking about

    It's been an abysmal year for the flying public. Planes have crashed in bad weather, disappeared over the Indian Ocean and tragically crossed paths with anti-aircraft missiles over Ukraine.

    July 30, 2014

  • Sharknado.jpg Sharknado 2 set to attack viewers tonight

    In the face of another "Sharknado" TV movie (the even-more-inane "Sharknado 2: The Second One," premiering Wednesday night on Syfy), there isn't much for a critic to say except to echo what the characters themselves so frequently scream when confronted by a great white shark spinning toward them in a funnel cloud:
    "LOOK OUT!!"

    July 30, 2014 1 Photo

  • Former Centerville teacher drowns in Creston

    A long-time Centerville Community School District teacher and coach has been identified as the man dive teams recovered from a southeast Iowa lake on Tuesday morning.

    July 30, 2014

  • 20140729-AMX-GIVHAN292.jpg Spanx stretches into new territory with jeans, but promised magic is elusive

    The Spanx empire of stomach-flattening, thigh-slimming, jiggle-reducing foundation garments has expanded to include what the brand promises is the mother of all body-shaping miracles: Spanx jeans.

    July 29, 2014 1 Photo

Features
AP Video
Raw: Obama Gets Hug From Special Olympian US, UN Announce Deal on Gaza Cease-Fire Despite Moratorium, Detroit Water Worries Remain Faith Leaders Arrested at DC Deportation Protest Family Dispute Cripples Northeast Grocery Chain CDC Warns Travelers Amid Ebola Outbreak US Stocks Plunge, Wiping Out July's Gains Demoted Worker Shoots CEO, Kills Self Obama Slams Republicans Over Lawsuit Raw: 2 Hurt in NY Trench Collapse House Leaders Trade Blame for Inaction Cantor Warns of Instability, Terror in Farewell Florida Panther Rebound Upsets Ranchers Small Plane Crash in San Diego Parking Lot Dangerous Bacteria Kills One in Florida Visitors Feel Part of the Pack at Wolf Preserve 3 People Killed, Deputies Wounded in NC Shootout Suing Obama: GOP-led House Gives the Go-ahead Obama: 'Blood of Africa Runs Through My Veins' Amid Drought, UCLA Sees Only Water
Facebook
Hyperlocal Search
Premier Guide
Find a business

Walking Fingers
Maps, Menus, Store hours, Coupons, and more...
Premier Guide
Poll

Upon completion and reopening of Third Street, should the City of Knoxville wait to start the next stage of the Streetscape and Infrastructure project until 2015?

Yes
No
     View Results