Evidence map›Paper›PMID 30469461›Full record

ArticleSensors (Basel, Switzerland)2018

Improvement of Detection Sensitivity of Microbubbles as Sensors to Detect Ambient Pressure.

Fei Li, Deyu Li, Fei Yan

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. [Experimental study on high-frequency subharmonic scattering characteristics of ultrasound contrast agent microbubbles under low ambient pressure].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2023
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. [Experimental studies for noninvasive assessment of portal vein pressure based on contrast enhanced subharmonic sonographic imaging].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2020
    Article
  14. Optimal Control of SonoVue Microbubbles to Estimate Hydrostatic Pressure.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2020
    Article
  15. Review
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

3 authors.

Fei LiPaul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China. fei.li@siat.ac.cn.
Deyu LiSchool of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China. deyuli@buaa.edu.cn.
Fei YanPaul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China. fei.yan@siat.ac.cn.

Funding

Key Laboratory for Magnetic Resonance and Multimodality Imaging of Guangdong Province 2014B030301013National Natural Science Foundation of China 11774369, 81530056, 81530056, 11534013, 81527901, 81671698, 81571689Shenzhen Basic Research Program JCYJ20170413100222613, JCYJ20170307165254568
6 · The paper itself

Abstract

Microbubbles are considered a promising tool for noninvasive estimation of local blood pressure. It is reported that the subharmonic scattering amplitude of microbubbles decreases by 9 to 12 dB when immersed in the media under an ambient pressure variation from 0 to 180 mmHg. However, the pressure sensitivity still needs to be improved to satisfy clinical diagnostic requirements. Here, we investigated the effects of acoustic parameters on the pressure sensitivity of microbubbles through measuring the acoustic attenuation and scattering properties of commercially available SonoVue microbubbles. Our results showed that the first harmonic, subharmonic, and ultraharmonic amplitudes of microbubbles were reduced by 6.6 dB, 10.9 dB, and 9.3 dB at 0.225 mechanical index (MI), 4.6 dB, 19.8 dB, and 12.3 dB at 0.25 MI, and 18.5 dB, 17.6 dB, and 12.6 dB at 0.3 MI, respectively, when the ambient pressure increased from 0 to 180 mmHg. Our finding revealed that a moderate MI (0.25⁻0.4) exciting microbubbles could significantly improve their sensitivities to detect ambient pressure.

Indexed as

mechanical indexmicrobubblesnoninvasive blood pressure measurementpressure sensorssubharmonic amplitude

Identifiers

PMID30469461
PMCPMC6308843

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.