发明名称 |
LUNG VENTILATION MEASUREMENTS USING ULTRASOUND |
摘要 |
An ultrasound-based system determines dynamic strain measurements over a surface using ultrasound speckle analysis that allows for accurate measurement of surface area displacement. The system additionally determines an approximate displacement along a third axis, the z-axis. From these, an estimation of a local volume change is determined. In this way, a volume change can be determined for the lung or any other region of interest. |
申请公布号 |
US2016095580(A1) |
申请公布日期 |
2016.04.07 |
申请号 |
US201514968275 |
申请日期 |
2015.12.14 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF MICHIGAN |
发明人 |
Rubin Jonathan;Hamilton James;Fowlkes J. Brian;Kripfgans Oliver D. |
分类号 |
A61B8/08;A61B8/00 |
主分类号 |
A61B8/08 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus comprising:
an imaging processing machine having a processor and a memory, wherein the processor is configured to execute instructions that when executed cause the imaging processing machine: to receive ultrasound images of a two-dimensional area corresponding to the target sample, where a first ultrasound image is taken at a first time period and a second ultrasound image is taken at a second time period after the first time period; to determine a change in strain value of the target sample over the two-dimensional area, wherein the strain value is determined from comparing the first ultrasound image to the second ultrasound image; to determine from the change in strain value, an xy-plane change in area of the target sample between the first time period and the second time period; to determine an approximate physical z-axis displacement over the two-dimensional area by approximating a change in local curvature of the two-dimensional area between the first time period and the second time period; and to determine a volume displacement of the target sample from the approximate physical z-axis displacement and the change in strain value. |
地址 |
Ann Arbor MI US |