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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03819naa a2200409 4500 | |
| 001 | oai:DiVA.org:kth-158331 | |
| 003 | SwePub | |
| 008 | 150107s2014 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1583312 URI |
| 024 | 7 | a https://doi.org/10.1016/j.ultras.2014.09.0052 DOI |
| 040 | a (SwePub)kth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Larsson, Matildau KTH,Medicinsk bildteknik,KU Leuven, Campus Gasthuisberg OandN1, Belgium4 aut0 (Swepub:kth)u1kv408t |
| 245 | 1 0 | a Ultrasound speckle tracking for radial, longitudinal and circumferential strain estimation of the carotid artery :b An in vitro validation via sonomicrometry using clinical and high-frequency ultrasound |
| 264 | 1 | b Elsevier BV,c 2014 |
| 338 | a print2 rdacarrier | |
| 500 | a QC 20150126 | |
| 520 | a 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 < 0.001) for radial strain, 0.73 (p < 0.001) for longitudinal strain and 0.90 (p < 0.001) for circumferential strain and for high-frequency ultrasound images 0.95 (p < 0.001) for radial strain, 0.93 (p < 0.001) for longitudinal strain and 0.90 (p < 0.001) for circumferential strain. A significant larger bias and root mean square error was found for circumferential strain estimation on clinical ultrasound images compared to high frequency ultrasound images, but no significant difference in bias and root mean square error was found for radial and longitudinal strain when comparing estimation on clinical and high-frequency ultrasound images. The agreement between sonomicrometry and speckle tracking demonstrates that carotid strain assessment by ultrasound speckle tracking is feasible. | |
| 650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Radiologi och bildbehandling0 (SwePub)302082 hsv//swe |
| 650 | 7 | a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Radiology, Nuclear Medicine and Medical Imaging0 (SwePub)302082 hsv//eng |
| 653 | a Ultrasound speckle tracking | |
| 653 | a Carotid strain | |
| 653 | a Vessel phantom | |
| 653 | a High-frequency ultrasound | |
| 653 | a Sonomicrometry | |
| 700 | 1 | a Heyde, Brecht4 aut |
| 700 | 1 | a Kremer, Florence4 aut |
| 700 | 1 | a Brodin, Lars-Akeu KTH,Medicinsk bildteknik4 aut0 (Swepub:kth)u1jq9s27 |
| 700 | 1 | a D'hooge, Jan4 aut |
| 710 | 2 | a KTHb Medicinsk bildteknik4 org |
| 773 | 0 | t Ultrasonicsd : Elsevier BVg 56, s. 399-408q 56<399-408x 0041-624Xx 1874-9968 |
| 856 | 4 | u https://doi.org/10.1016/j.ultras.2014.09.005 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-158331 |
| 856 | 4 8 | u https://doi.org/10.1016/j.ultras.2014.09.005 |
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