METHOD AND APPARATUS FOR DETECTING A GAS POCKET USING ULTRASOUND
First Claim
1. An ultrasound system for detecting a gas pocket in a Region-of-Interest, comprising:
- an ultrasound probe for transmitting an ultrasound signal toward the Region-of-Interest and acquiring an ultrasound echo signal reflected from the Region-of-Interest along a plurality of scanning lines;
an obtaining unit for obtaining a second harmonic component of the ultrasound echo signal for each depth of a plurality of depths along each scanning line of the plurality of scanning lines; and
a deriving unit for deriving a change in a center frequency of the second harmonic component along with the depth.
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Abstract
Existing gas pocket detection approaches are based on visual observations of B-mode ultrasound images showing comparisons between normal soft tissue and gas pockets, which are time-consuming and dependent on operator experience. The present invention proposes an ultrasound system and a method of detecting a gas pocket. The ultrasound system comprises: an ultrasound probe (110) for transmitting an ultrasound signal toward the ROI and acquiring an ultrasound echo signal reflected from the ROI along a plurality of scanning lines; an obtaining unit (130) for obtaining a second harmonic component of the ultrasound echo signal for each depth of a plurality of depths along each scanning line of the plurality of scanning lines; and a deriving unit (140) for deriving a change in a center frequency of the second harmonic component along with the depth.
21 Citations
15 Claims
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1. An ultrasound system for detecting a gas pocket in a Region-of-Interest, comprising:
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an ultrasound probe for transmitting an ultrasound signal toward the Region-of-Interest and acquiring an ultrasound echo signal reflected from the Region-of-Interest along a plurality of scanning lines; an obtaining unit for obtaining a second harmonic component of the ultrasound echo signal for each depth of a plurality of depths along each scanning line of the plurality of scanning lines; and a deriving unit for deriving a change in a center frequency of the second harmonic component along with the depth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of detecting a gas pocket in a Region-of-Interest, comprising steps of:
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transmitting (step 10) an ultrasound signal toward the Region-of-Interest and acquiring (step 10) an ultrasound echo signal reflected from the Region-of-Interest along a plurality of scanning lines; obtaining (step 20) a second harmonic component of the ultrasound echo signal for each depth of a plurality of depths along each scanning line of the plurality of scanning lines; and deriving (step 30) a change in a center frequency of the second harmonic component along with the depth. - View Dependent Claims (14, 15)
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Specification