Navigation Links
New Statistical Model Could Cut Needless Breast Biopsies
Date:12/5/2008

But further study needed before method can become standard, researchers say

FRIDAY, Dec. 5 (HealthDay News) -- A new statistical model may help radiologists better determine whether a breast lesion detected by MRI is malignant or benign, something that could help prevent unnecessary biopsies, say U.S. researchers.

They reviewed almost 2,600 breast MRI exams conducted over four years at the Seattle Cancer Care Alliance and identified three important categories of patient and lesion characteristics that, when used in combination, could predict the likelihood of cancer. The three are: the reason a woman is having a breast MRI; the size of the lesion; and the lesion enhancement pattern from the MRI contrast dye.

Lesions most likely to be malignant were: in women undergoing MRI to look for additional malignancy after new breast cancer diagnosis; lesions larger than one centimeter; and those whose enhancement quickly faded (called washout).

Lesions most likely to be benign were: in women being screened because they're considered to be at high risk for cancer; small lesions; and those with increased enhancement over time.

"If the lesions had those three characteristics, the likelihood of malignancy was 1 percent. This is so close to zero that rather than doing a biopsy, we could instead follow the patient by doing another MRI in a few months, or we may not need to do any additional testing," Dr. Wendy DeMartini, an assistant professor in the University of Washington School of Medicine, said in a Fred Hutchinson Cancer Research Center news release.

Futher study is required before this statistical model can be validated for use as standard practice.

"This is a preliminary model. Future work will look at additional patient and lesion features, and in the longer term, we need to examine lesions from multiple practice sites," DeMartini said. "Our goal is to identify a group of lesions that we currently recommend for additional tests where the likelihood of cancer is so low that we can safely avoid additional testing."

The research was presented Sunday at the Radiological Society of North America annual meeting, in Chicago.

More information

The American Cancer Society has more about breast biopsy.



-- Robert Preidt



SOURCE: Fred Hutchinson Cancer Research Center, news release, Nov. 30, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. New statistical model could help reduce breast-lesion biopsies
2. Academy of General Dentistry Releases Updated Employment Statistical Map
3. Statistical Bowl - How the 07 Patriots and the 72 Dolphins Match Up
4. In Landmark Phase III Head-to-Head Study, Prasugrel Statistically Superior to Clopidogrel in Reducing Risk of Heart Attack
5. Once-Weekly Exenatide Showed Statistical Superiority in Glucose Control Compared to BYETTA in Head-to-Head Study
6. Medicare Prescription Drug Benefit, Nonprofit Hospitals, Ambulatory Surgery Centers, Statistical Methods, and Pay-For-Performance Highlighted In the Latest INQUIRY Journal
7. Corporate Modelling Partners Start Selling BPM in Cloud Service
8. Americans United for Life Urges State Legislatures to Oppose Federal Power Grab: Provides Model Resolution Denouncing Freedom of Choice Act (FOCA)
9. Sealing off portion of intestinal lining treats obesity, resolves diabetes in animal model
10. California Drug Rehab Facility Completes Comprehensive Remodeling Project
11. New Data: Advanced Pharmacy Model Significantly Reduces Gaps in Care for Patients with Chronic and Complex Conditions; Improves Clinical and Financial Outcomes
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New Statistical Model Could Cut Needless Breast Biopsies 
(Date:6/25/2016)... ... June 25, 2016 , ... The temporary closing of Bruton Memorial Library on June 21 due ... up a new, often overlooked aspect of head lice: the parasite’s ability to live away ... a common occurrence, but a necessary one in the event that lice have simply gotten ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson ... Recently, he has implemented orthobiologic procedures as a method for treating his patients. ... the first doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons ...
(Date:6/24/2016)... ... June 24, 2016 , ... Those who have experienced traumatic events may ... to unhealthy avenues, such as drug or alcohol abuse, as a coping mechanism. To ... for healthy coping following a traumatic event. , Trauma sufferers tend to feel a ...
(Date:6/24/2016)... ... ... Global law firm Greenberg Traurig, P.A. announced that 20 Florida attorneys are ... for this recognition are considered among the top 2 percent of lawyers practicing within ... of this year’s Legal Elite Hall of Fame: Miami Shareholders Mark D. Bloom, ...
(Date:6/24/2016)... ... 2016 , ... People across the U.S. are sharpening their pencils and honing ... contest in which patients and their families pay tribute to a genetic counselor by ... Society of Genetic Counselors (NSGC) Annual Education Conference (AEC) this September. , In ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... -- Revolutionary technology includes multi-speaker listening to ... leaders in advanced audiology and hearing aid technology, has ... the world,s first internet connected hearing aid that opens ...      (Photo: http://photos.prnewswire.com/prnh/20160622/382240 ) , ... firsts,: , TwinLink™ - the first dual ...
(Date:6/23/2016)... , June 23, 2016 The vast majority ... outpatient dialysis facility.  Treatments are usually 3 times a ... per visit, including travel time, equipment preparation and wait ... but especially grueling for patients who are elderly and ... skilled nursing and rehabilitation centers for some duration of ...
(Date:6/23/2016)... FRANKLIN, Tenn. , June 23, 2016 ... for automating, integrating and transforming the patient ... launch of several innovative new products and ... depth of its revenue cycle offerings. These ... establish more efficient workflows, remain compliant in ...
Breaking Medicine Technology: