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231222s2003 xx ||||| 00| ||eng c |
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|a DE-627
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|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Jeong, Mok-Kun
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Tissue stiffness imaging method using temporal variation of ultrasound speckle pattern
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| 264 |
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1 |
|c 2003
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 02.07.2003
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|a Date Revised 16.09.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a Applying vibration to a medium makes it vibrate. The resulting change in scatterer distribution inside the medium due to applied vibration changes the speckle pattern of ultrasound images. In this case, scatterers in a hard medium experience small displacements, and those in a soft medium experience large displacements. As a result, the amount of speckle pattern brightness change in ultrasound images is related to the tissue stiffness. Using this dependency, a two-dimensional profile of relative tissue stiffness can be constructed qualitatively at the display pixel resolution by determining at each pixel the standard deviation and/or the difference between minimum and maximum values over a certain number of consecutive B-mode images. Experiments with phantoms show that the softer the tissue, the larger the standard deviation. The proposed imaging modality is a simple yet practical method of resolving hard cysts surrounded by soft background in a phantom using B-mode frame data only
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|a Letter
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| 650 |
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|a Research Support, Non-U.S. Gov't
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| 700 |
1 |
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|a Kwon, Sung-Jae
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1999
|g 50(2003), 4 vom: 21. Apr., Seite 457-60
|w (DE-627)NLM098181017
|x 0885-3010
|7 nnns
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| 773 |
1 |
8 |
|g volume:50
|g year:2003
|g number:4
|g day:21
|g month:04
|g pages:457-60
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|a AR
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|d 50
|j 2003
|e 4
|b 21
|c 04
|h 457-60
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