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/ Technology News / 2009 / June 2009 / June 30, 2009 |
Sysmex Announces Establishment of Overseas Subsidiary in Spain to Expand Life Science Business
Breast cancer multigene test may help patients avoid chemo
Scientists to map Chile earthquake site to capture fresh data
A team of scientists are all set to undertake an expedition to explore the rupture site of the 8.8-magnitude Chilean earthquake, which is one of largest quakes in recorded history. ANI
Signature of renaissance artist Raphael found hidden in painting
Reports indicate that art experts have found what they believe is the earliest signature of the master renaissance artist Raphael, hidden within a paintings arabesque decorations. ANI
How global warming can lead to increased violence in human beings
A new research has shown that as the earths average temperature rises, so does human heat in the form of violent tendencies, which links global warming with increased violence in human beings. ANI
Researchers from University of Wisconsin-Madison have suggested a new method, that when applied with MRI scans of the breast, can help rid women with increased breast cancer risk of the pain and stress of having to endure a biopsy of the lump or lesion.
Washington, June 30 : Researchers from University of Wisconsin-Madison have suggested a new method, that when applied with MRI scans of the breast, can help rid women with increased breast cancer risk of the pain and stress of having to endure a biopsy of the lump or lesion.
It is recommended that women with certain breast cancer risk factors - including inherited genetic mutations, family or personal history of breast cancer, or previous radiation therapy to the chest should receive an annual MRI screening in addition to their yearly mammogram.
During a breast MRI, which lasts about a half hour, the technician injects a contrast agent into a vein in the patient's arm.
The contrast agent flows throughout the body, including the br*ts.
Because they are growing quickly, cancerous lesions often have immature vasculature, and the contrast agent flows in and "leaks" out quickly. Conversely, benign lesions show more gradual in and out flow.
"The tricky ones are the ones that enhance quickly and then fall off more slowly," said Wally Block, a UW-Madison associate professor of biomedical engineering and medical physics.
"Many of these lesions turn out to be difficult to classify and lead to biopsy," Block added.
The researchers suggest that right kind of MRI scan can help identify a cancerous lesion based on characteristics about its shape.
For instance, breaks or interruptions in a lesion can indicate a benign fibroadenoma. Lumps with smooth edges often are benign, while those with jagged edges can signal cancer.
With the new technique, an MRI machine acquires data radially and generates a high-resolution, three-dimensional image that radiologists can turn, slice and view from many perspectives - enabling them to study a lesion's physical characteristics more carefully.
Machines equipped with the technique also acquire more data in less time.
ANI
