Ultrasound speckle tracking for radial, longitudinal and circumferential strain estimation of the carotid artery – An in vitro validation via sonomicrometry using clinical and high-frequency ultrasound
| Autor: | Jan D'hooge, Matilda Larsson, Lars-Åke Brodin, Brecht Heyde, Florence Kremer |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
medicine.medical_specialty
Acoustics and Ultrasonics Carotid arteries Vessel phantom Tracking (particle physics) Ultrasound speckle tracking Speckle pattern Humans Medicine Circumferential strain Carotid strain Ultrasonography Phantoms Imaging business.industry Ultrasound medicine.disease High-frequency ultrasound Carotid Arteries Sonomicrometry Arterial stiffness Radiology business Algorithms High frequency ultrasound Biomedical engineering |
| Zdroj: | Ultrasonics. 56:399-408 |
| ISSN: | 0041-624X |
| DOI: | 10.1016/j.ultras.2014.09.005 |
| Popis: | Ultrasound speckle tracking for carotid strain assessment has in the past decade gained interest in studies of arterial stiffness and cardiovascular diseases. The aim of this study was to validate and directly contrast carotid strain assessment by speckle tracking applied on clinical and high-frequency ultrasound images in vitro. Four polyvinyl alcohol phantoms mimicking the carotid artery were constructed with different mechanical properties and connected to a pump generating carotid flow profiles. Gray-scale ultrasound long- and short-axis images of the phantoms were obtained using a standard clinical ultrasound system, Vivid 7 (GE Healthcare, Horten, Norway) and a high-frequency ultrasound system, Vevo 2100 (FUJIFILM, VisualSonics, Toronto, Canada) with linear-array transducers (12L/MS250). Radial, longitudinal and circumferential strains were estimated using an in-house speckle tracking algorithm and compared with reference strain acquired by sonomicrometry. Overall, the estimated strain corresponded well with the reference strain. The correlation between estimated peak strain in clinical ultrasound images and reference strain was 0.91 (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect