Reliability of hand-held transcranial doppler with M-mode ultrasound in middle cerebral artery measurement

Simple item page
dc.contributor.authorMuñoz, Paula
dc.contributor.authorGaete, Javier
dc.contributor.authorIllanes, Sergio
dc.contributor.authorLópez, Javiera
dc.contributor.authorOlavarría, Verónica
dc.contributor.authorReccius, Andrés
dc.contributor.authorBrinck, Pablo
dc.contributor.authorGonzález, Francisca
dc.contributor.authorCavada, Gabriel
dc.contributor.authorLavados, Pablo
dc.contributor.authorBrunser, Alejandro
dc.date.accessioned2018-01-17T12:01:51Z
dc.date.available2018-01-17T12:01:51Z
dc.date.issued2017
dc.description.abstractPurpose: To determine the intra- and interrater agreement of mean flow velocity (MFV) and pulsatility index (PI) measurement in middle cerebral arteries, assessed by transcranial Doppler (TCD) with M-mode. Methods: Masked experienced neurosonologists performed TCD with M-mode using handheld probe in healthy adult volunteers. The Bland–Altman method for concordance and intraclass correlation coefficient were used. Results: Seventy-seven healthy volunteers and seven raters participated (3 on regular TCD shift and 4 off-shift). The intrarater absolute mean difference between measurements was 5.5 cm/s [95% confidence interval (CI), 4.7–6.3] for MVF and 0.073 (95% CI, 0.063–0.083) for PI. The difference between MFV measurements was significantly higher in off-shift raters (p = 0.015). The interrater absolute mean difference between measurements was 6.5 cm/s (95% CI, 5.5–7.5) for MVF and 0.065 (95% CI, 0.059–0.071) for PI. No influence was found for the middle cerebral artery side, volunteer's sex, or age, and there was no significant difference between raters. The intraclass correlation coefficient was 82.2% (95% CI 77.8–85.6) and 72.9% (95% CI 67.4–77.6) for MFV and PI, respectively. Conclusions: There exists good intra- and interrater agreement in MFV and PI measurements using M-mode TCD. These results support the use of this noninvasive tool and are important for clinical and investigational purposes.
dc.description.versionVersión Publicada
dc.format.extent6
dc.identifier.citationVenturelli PM, Brunser AM, Gaete J, Illanes S, López J, Olavarría VV, Reccius A, Brinck P, González F, Cavada G, Lavados PM. Reliability of Hand-Held Transcranial Doppler with M-mode Ultrasound in Middle Cerebral Artery Measurement. J Med Ultrasound. 2017 Apr-Jun;25(2):76-81. doi: 10.1016/j.jmu.2016.12.001
dc.identifier.urihttp://hdl.handle.net/11447/1903
dc.identifier.urihttp://doi.org/10.1016/j.jmu.2016.12.001
dc.language.isoen_US
dc.publisherElsevier
dc.sourceJournal of Medical Ultrasound
dc.subjectagreement
dc.subjectintraclass correlation coefficient
dc.subjectmean flow velocity
dc.subjectreproducibility
dc.subjecttranscranial Doppler
dc.titleReliability of hand-held transcranial doppler with M-mode ultrasound in middle cerebral artery measurement
dc.typeArtículo

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Reliability of Hand-Held Transcranial Doppler with M-mode Ultrasound in Middle Cerebral Artery Measurement.pdf
Size:
798.19 KB
Format:
Adobe Portable Document Format
Description:
Texto completo
Download

Collections

Artículos Medicina y Ciencias de la Salud

Implementado por OpenGeek Services