Simultaneous vascular strain and blood vector velocity imaging using high frequency versus conventional frequency plane wave ultrasound: a phantom study

Stein Fekkes, Anne E.C.M. Saris (Corresponding Author), Maartje M. Nillesen, Jan Menssen, Hendrik H.G. Hansen, Chris L. de Korte

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

Plaque strain and blood vector velocity imaging of stenosed arteries are expected to aid in diagnosis and prevention of cerebrovascular disease. Ultrafast plane wave imaging enables simultaneous strain and velocity estimation. Multiple ultrasound vendors are introducing high frequency ultrasound probes and systems. This study investigates whether the use of high frequency ultrafast ultrasound is beneficial for assessing blood velocities and strain in arteries. The performance of strain and blood flow velocity estimation was compared between a high frequency transducer (MS250, fc =21 MHz) and a clinically utilized transducer (L12-5, fc =9 MHz). Quantitative analysis based on straight tube phantom experiments revealed that the MS250 outperformed the L12-5 in the superficial region: low velocities near the wall were more accurately estimated and wall strains were better resolved. At greater than 2 cm echo depth, the L12-5 performed better, due to the high attenuation of the MS250 probe. Qualitative comparison using a perfused patient-specific carotid bifurcation phantom confirmed these findings. Thus, in conclusion, for strain and blood velocity estimation for depths up to ~2 cm a high frequency probe is recommended.

Original languageEnglish
Pages (from-to)1166-1181
Number of pages21
JournalIEEE transactions on ultrasonics, ferroelectrics and frequency control
Volume65
Issue number7
DOIs
Publication statusPublished - Jul 2018

Keywords

  • Flow estimation
  • High frequency ultrasound
  • Plane wave ultrasound
  • PVA phantom
  • Strain imaging
  • Displacement estimation
  • plane wave ultrasound
  • polyvinyl alcohol (PVA) phantom
  • high-frequency ultrasound
  • strain imaging
  • flow estimation

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