Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

BI-RADS Lexicon for Ultrasound Useful For Differentiating Benign from Malignant Solid Masses

05.04.2005


Descriptors from the Breast Imaging Reporting and Data System (BI-RADS) lexicon for ultrasound can be useful in differentiating benign from malignant solid masses, according to a new study by researchers at Duke University School of Medicine in Durham, NC, and supported by the National Institutes of Health.



For the study, the researchers analyzed 403 sonograms of solid masses, 141 of which were found to be malignant at biopsy. Each lesion was described using features from the BI-RADS lexicon for ultrasound. The results were then compared to the biopsy findings. The researchers found that the descriptors were highly predictive for both malignant and benign masses. For malignant lesions, descriptors such as “spiculated margin” were accurate in 86% of the instances, “irregular shape” in 62% and “nonparallel orientation” in 69%. For benign lesions, descriptors such as “circumscribed margin” were accurate in 90% of the instances, “parallel orientation” in 78% and “oval shape” in 84%.

A BI-RADS lexicon has been in use for mammography for a number of years and, according to the authors, has greatly improved the organization of mammography reports. The BI-RADS lexicon for ultrasound was published more recently, and radiologists are only now beginning to gain experience using this lexicon on a daily basis.


“It is important for radiologists making decisions about biopsy recommendations to base those decisions on science rather than gestalt. For example, we are taught in general that margins that appear circumscribed at ultrasound are generally seen with benign masses. While this is true in general, our study showed that 10% of masses with circumscribed margins at sonography were malignant. Therefore, circumscribed margins alone would not be sufficient to skip a biopsy of a circumscribed mass,” said Jay A. Baker, MD, one of the authors of the study.

According to the study authors, this information is valuable for counseling patients. “By evaluating the morphology of a particular mass, a radiologist can use the data from this study to either reassure a woman who has a mass with benign features that the biopsy is likely to be benign or to more confidently advocate a biopsy in a reluctant patient who has a mass with more worrisome features,” said Dr. Baker.

The study appears in the April 2005 issue of the American Journal of Roentgenology.

Jason Ocker | EurekAlert!
Further information:
http://www.arrs.org

More articles from Studies and Analyses:

nachricht Europe’s Demographic Future. Where the Regions Are Heading after a Decade of Crises
10.08.2017 | Berlin-Institut für Bevölkerung und Entwicklung

nachricht Scientists reveal source of human heartbeat in 3-D
07.08.2017 | University of Manchester

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

Nagoya physicists resolve long-standing mystery of structure-less transition

21.08.2017 | Materials Sciences

Chronic stress induces fatal organ dysfunctions via a new neural circuit

21.08.2017 | Health and Medicine

Scientists from the MSU studied new liquid-crystalline photochrom

21.08.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>