Effect of pulse repetition frequency on microcalcification detection in color flow imaging
The twinkling sign is a phenomenon involving rapidly alternating color pixels behind a stationary strongly reflecting medium where an acoustic shadow is expected in the Doppler mode. However, the mechanism of the occurrence of such a sign is not yet clarified. In this study, to clarify the mechanism...
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| Veröffentlicht in: | Japanese Journal of Applied Physics 2014-07, Vol.53 (7S), p.7-1-07KF15-5 |
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| container_end_page | 1-07KF15-5 |
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| container_issue | 7S |
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| container_title | Japanese Journal of Applied Physics |
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| creator | Tanabe, Masayuki Naito, Yu Nishimoto, Masahiko Liu, Lei |
| description | The twinkling sign is a phenomenon involving rapidly alternating color pixels behind a stationary strongly reflecting medium where an acoustic shadow is expected in the Doppler mode. However, the mechanism of the occurrence of such a sign is not yet clarified. In this study, to clarify the mechanism, we investigated effect of pulse repetition frequency (PRF) on echo signals from a glass bead (diameter 973 µm) in a soft-tissue-mimicking phantom, and observed the appearance pattern of the twinkling sign of the same glass bead. It was observed that the variance of the IQ signal and the appearance frequency of the twinkling sign decreased when PRF increased. |
| doi_str_mv | 10.7567/JJAP.53.07KF15 |
| format | Article |
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However, the mechanism of the occurrence of such a sign is not yet clarified. In this study, to clarify the mechanism, we investigated effect of pulse repetition frequency (PRF) on echo signals from a glass bead (diameter 973 µm) in a soft-tissue-mimicking phantom, and observed the appearance pattern of the twinkling sign of the same glass bead. 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J. Appl. Phys</addtitle><description>The twinkling sign is a phenomenon involving rapidly alternating color pixels behind a stationary strongly reflecting medium where an acoustic shadow is expected in the Doppler mode. However, the mechanism of the occurrence of such a sign is not yet clarified. In this study, to clarify the mechanism, we investigated effect of pulse repetition frequency (PRF) on echo signals from a glass bead (diameter 973 µm) in a soft-tissue-mimicking phantom, and observed the appearance pattern of the twinkling sign of the same glass bead. It was observed that the variance of the IQ signal and the appearance frequency of the twinkling sign decreased when PRF increased.</description><subject>Acoustics</subject><subject>Beads</subject><subject>Color</subject><subject>Doppler</subject><subject>Doppler effect</subject><subject>Echo surveys</subject><subject>Pixels</subject><subject>Pulse repetition frequency</subject><subject>Shadows</subject><issn>0021-4922</issn><issn>1347-4065</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp1UD1PwzAUtBBIlMLK7BEhJfgjjpOxqlqgVIIBFhbLdZ4rV2kc7FSo_x6XsDK99_TuTneH0C0luRSlfFitZm-54DmRL0sqztCE8kJmBSnFOZoQwmhW1IxdoqsYd-ksRUEn6HNhLZgBe4v7QxsBB-hhcIPzHbYBvg7QmSNOx96Z4I1ujbPO6N9_A0OinjbXYeNbH7Bt_Td2e7113fYaXVidJG_-5hR9LBfv86ds_fr4PJ-tM8MlHzIBktCGGQuaaKYJsMpQQY3lVIJooGFcEFpDsSGESltVtaVNTaUuzIbxBvgU3Y26ffDJbxzU3kUDbas78IeoaFkJWdFK8gTNR2jKEmMAq_qQ3IajokSdSlSnEpXgaiwxEe5HgvO92vlD6FKS_8A_LNhzpw</recordid><startdate>20140701</startdate><enddate>20140701</enddate><creator>Tanabe, Masayuki</creator><creator>Naito, Yu</creator><creator>Nishimoto, Masahiko</creator><creator>Liu, Lei</creator><general>The Japan Society of Applied Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20140701</creationdate><title>Effect of pulse repetition frequency on microcalcification detection in color flow imaging</title><author>Tanabe, Masayuki ; Naito, Yu ; Nishimoto, Masahiko ; Liu, Lei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c373t-5e701d2cfea0a2a0e28c151cf317e5ded235019e4b0017f889f1d917a4cb23de3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Acoustics</topic><topic>Beads</topic><topic>Color</topic><topic>Doppler</topic><topic>Doppler effect</topic><topic>Echo surveys</topic><topic>Pixels</topic><topic>Pulse repetition frequency</topic><topic>Shadows</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tanabe, Masayuki</creatorcontrib><creatorcontrib>Naito, Yu</creatorcontrib><creatorcontrib>Nishimoto, Masahiko</creatorcontrib><creatorcontrib>Liu, Lei</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Japanese Journal of Applied Physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tanabe, Masayuki</au><au>Naito, Yu</au><au>Nishimoto, Masahiko</au><au>Liu, Lei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of pulse repetition frequency on microcalcification detection in color flow imaging</atitle><jtitle>Japanese Journal of Applied Physics</jtitle><addtitle>Jpn. J. Appl. Phys</addtitle><date>2014-07-01</date><risdate>2014</risdate><volume>53</volume><issue>7S</issue><spage>7</spage><epage>1-07KF15-5</epage><pages>7-1-07KF15-5</pages><issn>0021-4922</issn><eissn>1347-4065</eissn><coden>JJAPB6</coden><abstract>The twinkling sign is a phenomenon involving rapidly alternating color pixels behind a stationary strongly reflecting medium where an acoustic shadow is expected in the Doppler mode. However, the mechanism of the occurrence of such a sign is not yet clarified. In this study, to clarify the mechanism, we investigated effect of pulse repetition frequency (PRF) on echo signals from a glass bead (diameter 973 µm) in a soft-tissue-mimicking phantom, and observed the appearance pattern of the twinkling sign of the same glass bead. It was observed that the variance of the IQ signal and the appearance frequency of the twinkling sign decreased when PRF increased.</abstract><pub>The Japan Society of Applied Physics</pub><doi>10.7567/JJAP.53.07KF15</doi><tpages>5</tpages></addata></record> |
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| source | HEAL-Link subscriptions: Institute of Physics (IOP) Journals; Institute of Physics Journals |
| subjects | Acoustics Beads Color Doppler Doppler effect Echo surveys Pixels Pulse repetition frequency Shadows |
| title | Effect of pulse repetition frequency on microcalcification detection in color flow imaging |
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