The role of the acoustic radiation force in color Doppler twinkling artifacts
Purpose: The aim of this experimental study was to evaluate whether the acoustic radiation force (ARF) is a potential source of twinkling artifacts in color Doppler images. Methods: Color Doppler images were obtained using a clinical ultrasonic scanner (Voluson e, GE Healthcare) for a high contrast...
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| Format: | Article |
| Language: | English |
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Korean Society of Ultrasound in Medicine
2015-04-01
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| Series: | Ultrasonography |
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| Online Access: | http://www.e-ultrasonography.org/upload/usg-14065.pdf |
| _version_ | 1819149771271569408 |
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| author | Jeong-hwa Yang Gwansuk Kang Min Joo Choi |
| author_facet | Jeong-hwa Yang Gwansuk Kang Min Joo Choi |
| author_sort | Jeong-hwa Yang |
| collection | DOAJ |
| description | Purpose: The aim of this experimental study was to evaluate whether the acoustic radiation force (ARF) is a potential source of twinkling artifacts in color Doppler images. Methods: Color Doppler images were obtained using a clinical ultrasonic scanner (Voluson e, GE Healthcare) for a high contrast (+15 dB) circular scattering phantom at pulse repetition frequencies (PRFs) ranging from 0.1 to 13 kHz. Ultrasound transmissions resulting in ARF were measured using a hydrophone at the various PRFs considered. The influence of ARF on the appearance of twinkling colors was examined via the common parameter PRF. This methodology is based on the fact that alternating positive and negative Doppler shifts induced by the ARF are centered at a PRF twice the maximum Doppler frequency on the color scale bar, whereas the twinkling color aliasing is expected to remain similar regardless of PRF. Results: Color twinkling artifacts were observed to be most conspicuous at the lowest PRF of 0.1 kHz. The extent of twinkling rapidly decreased as the PRF increased, eventually disappearing when the PRF ≥0.6 kHz. The measured ultrasound transmissions, however, were found to be insensitive to the PRF, and therefore it can be inferred that the PRF was insensitive to the ARF. Conclusion: Based on our experimental observations, the ARF may not be a source of color Doppler twinkling artifacts. |
| first_indexed | 2024-12-22T14:06:54Z |
| format | Article |
| id | doaj.art-dcbd1a35271a4da69baf7ea3a719f9ca |
| institution | Directory Open Access Journal |
| issn | 2288-5919 2288-5943 |
| language | English |
| last_indexed | 2024-12-22T14:06:54Z |
| publishDate | 2015-04-01 |
| publisher | Korean Society of Ultrasound in Medicine |
| record_format | Article |
| series | Ultrasonography |
| spelling | doaj.art-dcbd1a35271a4da69baf7ea3a719f9ca2022-12-21T18:23:17ZengKorean Society of Ultrasound in MedicineUltrasonography2288-59192288-59432015-04-0134210911410.14366/usg.1406576The role of the acoustic radiation force in color Doppler twinkling artifactsJeong-hwa Yang0Gwansuk Kang1Min Joo Choi2 Department of Radiotechnology, Cheju Halla University, Jeju, Korea Interdisciplinary Postgraduate Program in Biomedical Engineering, Jeju National University, Jeju, Korea Interdisciplinary Postgraduate Program in Biomedical Engineering, Jeju National University, Jeju, KoreaPurpose: The aim of this experimental study was to evaluate whether the acoustic radiation force (ARF) is a potential source of twinkling artifacts in color Doppler images. Methods: Color Doppler images were obtained using a clinical ultrasonic scanner (Voluson e, GE Healthcare) for a high contrast (+15 dB) circular scattering phantom at pulse repetition frequencies (PRFs) ranging from 0.1 to 13 kHz. Ultrasound transmissions resulting in ARF were measured using a hydrophone at the various PRFs considered. The influence of ARF on the appearance of twinkling colors was examined via the common parameter PRF. This methodology is based on the fact that alternating positive and negative Doppler shifts induced by the ARF are centered at a PRF twice the maximum Doppler frequency on the color scale bar, whereas the twinkling color aliasing is expected to remain similar regardless of PRF. Results: Color twinkling artifacts were observed to be most conspicuous at the lowest PRF of 0.1 kHz. The extent of twinkling rapidly decreased as the PRF increased, eventually disappearing when the PRF ≥0.6 kHz. The measured ultrasound transmissions, however, were found to be insensitive to the PRF, and therefore it can be inferred that the PRF was insensitive to the ARF. Conclusion: Based on our experimental observations, the ARF may not be a source of color Doppler twinkling artifacts.http://www.e-ultrasonography.org/upload/usg-14065.pdfUltrasonography, Doppler, colorArtifactsAcoustic radiation forcePulse repetition frequency |
| spellingShingle | Jeong-hwa Yang Gwansuk Kang Min Joo Choi The role of the acoustic radiation force in color Doppler twinkling artifacts Ultrasonography Ultrasonography, Doppler, color Artifacts Acoustic radiation force Pulse repetition frequency |
| title | The role of the acoustic radiation force in color Doppler twinkling artifacts |
| title_full | The role of the acoustic radiation force in color Doppler twinkling artifacts |
| title_fullStr | The role of the acoustic radiation force in color Doppler twinkling artifacts |
| title_full_unstemmed | The role of the acoustic radiation force in color Doppler twinkling artifacts |
| title_short | The role of the acoustic radiation force in color Doppler twinkling artifacts |
| title_sort | role of the acoustic radiation force in color doppler twinkling artifacts |
| topic | Ultrasonography, Doppler, color Artifacts Acoustic radiation force Pulse repetition frequency |
| url | http://www.e-ultrasonography.org/upload/usg-14065.pdf |
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