Quantitative Measurement of Circumferential Carotid Arterial Strain by Two-Dimensional Speckle Tracking Imaging in Healthy Subjects.
Background: Two-dimensional speckle tracking imaging (2DS) enables quantitative measurement of left ventricular strain. However, application of 2DS for measurement of circumferential carotid arterial strain (CAS) is not fully elucidated. We investigated the feasibility and reproducibility of measuri...
| Publicado en: | Echocardiography Vol. 28; no. 8; pp. 899 - 907 |
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| Autores principales: | , , , , , , , |
| Formato: | diagnostic images research tables/charts tracings Journal Article |
| Publicado: |
Wiley-Blackwell
Sep2011
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104684368&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104684368 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 07422822 GSE jtl: Echocardiography issn: 07422822 maglogo: Y pubinfo: dt: Sep2011 vid: 28 iid: 8 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 104684368 65302231 10.1111/j.1540-8175.2011.01443.x NLM21827536 104684368 ppf: 899 ppct: 8 formats: fmt: @attributes: type: P tig: atl: Quantitative Measurement of Circumferential Carotid Arterial Strain by Two-Dimensional Speckle Tracking Imaging in Healthy Subjects. aug: au: Yuda, Satoshi Kaneko, Reiko Muranaka, Atsuko Hashimoto, Akiyoshi Tsuchihashi, Kazufumi Miura, Tetsuji Watanabe, Naoki Shimamoto, Kazuaki affil: Department of Clinical Laboratory Medicine; Second Department of Internal Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan sug: subj: Carotid Arteries Ultrasonography Echocardiography Methods Human Male Female Descriptive Statistics Young Adult Adult Reproducibility of Results Multiple Regression Middle Age Blood Pressure Physiology Data Analysis Software Univariate Statistics Adult: 19-44 years Middle Aged: 45-64 years Male Female ab: Background: Two-dimensional speckle tracking imaging (2DS) enables quantitative measurement of left ventricular strain. However, application of 2DS for measurement of circumferential carotid arterial strain (CAS) is not fully elucidated. We investigated the feasibility and reproducibility of measuring CAS by 2DS and determinants of CAS in healthy subjects. Methods: Fifty-one healthy subjects (20 men and 31 women) with a mean age of 29 ± 11 years were enrolled. Ultrasound examination of bilateral common carotid arteries (CCAs) was performed and short axial views were recorded. The mean intima-media thickness (IMT) of bilateral CCAs was measured using semiautomated edge-detection software. Bilateral peak CAS at systole and time to peak CAS in each region were measured by 2DS. Stiffness parameter β of bilateral CCAs was measured and bilateral cardio-ankle vascular index (CAVI) was recorded. Intraobserver and interobserver variabilities for mean CAS were calculated in 15 subjects. Results: Of the 612 regions, 577 (94%) had adequate waveforms for measurement of CAS. The mean value of CAS was 6.7 ± 2.1%. Required time for CAS analysis was 128 ± 12 seconds per subject. Multiple regression analysis identified age (P < 0.001) and pulse pressure (P < 0.05) as independent significant determinants of mean CAS. Corrected CAS, which was calculated as mean CAS/pulse pressure, correlated with age, mean IMT, and stiffness parameter β and systolic pressure (P < 0.001), age (P < 0.01), and stiffness parameter β (P = 0.02) were identified as independent significant determinants of corrected CAS. Coefficient of variance (CV) of intraobserver and interobserver variabilities for mean CAS were 8.8% and 5.9%, respectively. Conclusions: 2DS in the CCAs is simply and quickly performed with high feasibility and excellent reproducibility. In healthy subjects, age and pulse pressure are the most important determinants of mean CAS. (Echocardiography 2011;28:899-906) pubtype: Academic Journal doctype: diagnostic images research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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