Apr 3, 2010 12:24 PM by NBC

A new type of ultrasound that may replace biopsies

Biopsies are a good way of detecting cancer, but they do have risks, are expensive, and sometimes unnecessary.

There is a new type of ultrasound may someday replace some biopsies. Elastography is a high-frequency ultrasound that uses sound waves to detect malignant tissue by its elasticity, or how stiff the tissue is.

Preliminary research shows elastography to be extremely accurate. Radiologists could start using it within four to five years.



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