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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1109/TUFFC.2021.3108163
|2 doi
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|a pubmed25n1099.xml
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|a (NLM)34437062
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Liang, Suzi
|e verfasserin
|4 aut
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1 |
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|a Evaluation of Blood Induced Influence for High-Definition Intravascular Ultrasound (HD-IVUS)
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 10.01.2022
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|a Date Revised 10.01.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a High-definition intravascular ultrasound (HD-IVUS) utilizing more than 80 MHz frequency to assess atherosclerotic plaque, can theoretically achieve an axial resolution of less than [Formula: see text]. However, the blood is a high-attenuation source at high frequency, which would affect the imaging quality. There has been no research evaluating the blood-induced influence on HD-IVUS imaging. And whether a temporary removal of blood is needed for HD-IVUS is unknown. In this study, an ultrahigh-frequency (100 MHz) ultrasound transducer was developed to evaluate the blood-induced attenuation for HD-IVUS imaging. A series of tungsten-wire phantom images in saline and blood at varying hematocrits were obtained. The images showed that blood did influence the ultrahigh-frequency imaging quality greatly. The signal-to-noise ratio (SNR) decrease by 71.7% in porcine whole blood compared to that in saline at the same depth of 2.3 mm. Moreover, the potential flushing schemes for HD-IVUS were studied in varying hematocrits. Three flushing agents commonly used in intravascular optical coherence tomography (IV-OCT) were investigated, including iohexol, mannitol, and dextran 5% and saline as the control group. The attenuation of blood in varying hematocrits/flushing agents was measured from 90 to 110 MHz. The result indicated dextran 5% was a suitable flushing agent for HD-IVUS due to its less signal attenuation compared to others
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Su, Min
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Baoqiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Rong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Hairong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qiu, Weibao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Zhiqiang
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1986
|g 69(2022), 1 vom: 01. Jan., Seite 98-105
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnas
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| 773 |
1 |
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|g volume:69
|g year:2022
|g number:1
|g day:01
|g month:01
|g pages:98-105
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|u http://dx.doi.org/10.1109/TUFFC.2021.3108163
|3 Volltext
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