ELASTOGRAPHY-BASED ASSESSMENT OF CRYOABLATION
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United States of America Patent
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Issued Date -
Mar 26, 2015
app pub date -
Sep 24, 2013
filing date -
Sep 24, 2013
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Abstract
A method of monitoring the cryoablation of a target volume of tissue with ultrasound elastography, the method comprising acquiring a first elastography image encompassing said target volume of tissue, performing at least one cycle of freezing and thawing of tissue encompassed in said target volume, acquiring a second elastography image encompassing said target volume, and comparing said first and said second elastography images over said target volume. The elastography provides either relative or quantitative measurements of tissue elasticity. The elastography maps of tissue elasticity, before and after cryoablation of one region, can guide the cryoablation of another region. The use of elastography provided feedback to the operator to achieve effective treatment with cryoblation over a planned target.
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