Navigation Links
Cone-Beam CT faster, potentially more accurate than conventional mammography

Cone-beam breast CT provides exceptional tissue contrast and can potentially reduce examination time with comparable radiation dose to conventional 2D mammography, according to a new study by a team of researchers from the University of Texas M. D. Anderson Cancer Center in Houston.

Cone-beam breast CT employs a large area x-ray beam in conjunction with a flat panel x-ray detector to scan and generate 3D images of the breast. The scanner is placed below a table on which the patient lies prone with the breast protruding through an opening. Only the breast is exposed to radiation resulting in improved image quality and sparing the rest of the patients body from unnecessary radiation exposure. The scan can be completed in less than one minute with a single complete rotation of the x-ray tube-detector gantry around the breast. Unlike conventional CT, the patient is not moved through the gantry during scanning.

For the study, the researchers used cone-beam CT on 12 mastectomy specimens. The researchers discovered that structured noise on cone-beam CT was minimal because of the absence of overlapping tissue; that breast anatomy was well resolved on all images as skin, adipose, and glandular regions; and that microcalcifications within cancers were clearly shown. In addition, they discovered that the detection of cancers based on morphologic assessment of tissue structures could potentially be improved compared with mammography because of the lack of overlapping glandular tissue.

Conventional 2D mammography is currently the most prevalent imaging technique for screening and diagnosis of breast cancers. However, the 2D projection images can overlap normal tissue, soft tissue masses, and calcifications and affect the detection and visualization of cancer. Despite the advantage of excellent spatial resolution, conventional mammography is unable to diagnose all cancers, especially early cancers in dense breasts, and cancers in high risk women such as genetic carriers, said Wei Tse Yang, MD, lead author of the study.

The researchers believe that cone-beam CT may potentially be used to replace mammography in screening and diagnostic breast imaging. In addition to overcoming the problem of overlapping breast tissue, cone-beam breast CT has the ability to provide true 3D images of the breast that may help depict the 3D morphology and distribution of lesions, and that may provide incremental benefit in the differentiation of abnormalities from background breast tissue. In addition, the multiplanar high-resolution surveys it provides are at a radiation dose comparable to routine mammography, said Dr. Yang.

Besides those benefits of cone-beam breast CT, the researchers pointed out others, as well. Scanning using this method takes less than one minute. This compares with 40 minutes for breast MRI, and 10 minutes for mammography. It also eliminates the discomfort associated with compression during mammography and the problem of claustrophobia during MRI, said Dr. Yang.

The full results of this study appear in the December issue of the American Journal of Roentgenology, published by the American Roentgen Ray Society.

Contact: Necoya Tyson
American Roentgen Ray Society

Related medicine news :

1. Regulatory Affairs Associates Gets New Drugs Tested Faster, Wins 2007 Innovation Michigan Award
2. DNA vaccine against multiple sclerosis appears safe, potentially beneficial
3. Common abdominal pain may be due to a potentially treatable newly recognized inflammatory reaction
4. Molecular profiling can accurately predict survival in colon cancer patients
5. PET scans can accurately detect a breast tumors response to chemotherapy
6. ADA Calls for Scientifically Accurate Patient Brochure Explaining Filling Choices
7. Dr. Laura Jana Offers Parents Five Key Ways to Ensure Accurate Dosing of Liquid Medication to Infants
8. CT angiography highly accurate, multicenter trials show
9. CT Angiography Highly Accurate: Multicenter Trials Show
10. Breaking Studies at AARC Congress Show Masimo SET and Masimo Rainbow SET to be Accurate, Effective and Uniquely Beneficial in Detecting and Tracking Disease States
11. Conventional prognostic factors fail to explain better prostate cancer survival in most Asian men
Post Your Comments:
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. ... from injury. Recently, he has implemented orthobiologic procedures as a method for treating ... one of the first doctors to perform the treatment. Orthobiologics are substances that ...
(Date:6/25/2016)... ... ... Conventional wisdom preaches the benefits of moderation, whether it’s a matter of indulgence ... high can result in disappointment, perhaps even self-loathing. However, those who set the bar ... from reveals that behind the tendency to set low expectations is ...
(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)... , ... June 24, 2016 , ... Marcy was in a crisis. Her son James, ... out at his family verbally and physically. , “When something upset him, he couldn’t control ... use it. He would throw rocks at my other children and say he was going ...
(Date:6/24/2016)... Fla. (PRWEB) , ... June 24, 2016 , ... Global ... Trend magazine’s 2016 Legal Elite. The attorneys chosen by their peers for this recognition ... Florida. , Seven Greenberg Traurig Shareholders received special honors as members of this year’s ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... -- Dehaier Medical Systems Ltd. (NASDAQ: DHRM ... sells medical devices and wearable sleep respiratory products in ... agreement with Hongyuan Supply Chain Management Co., Ltd. (hereinafter ... 2016, to develop Dehaier,s new Internet medical technology business. ... leverage Hongyuan Supply Chain,s sales platform to reach Dehaier,s ...
(Date:6/24/2016)... India , June 24, 2016 ... Needles Market by Type (Standard Pen Needles, Safety Pen ... Therapy (Insulin, GLP-1, Growth Hormone), Mode of Purchase (Retail, ... by MarketsandMarkets, This report studies the market for the ... expected to reach USD 2.81 Billion by 2021 from ...
(Date:6/24/2016)...  Arkis BioSciences, a leading innovator in the ... cerebrospinal fluid treatments, today announced it has secured ... led by Innova Memphis, followed by Angel Capital ... Arkis, new financing will accelerate the commercialization of ... of its in-licensed Endexo® technology. ...
Breaking Medicine Technology: