Carotid Intima-Media Thickness Testing by Non-Sonographer Clinicians: The Office Practice Assessment of Carotid Atherosclerosis Study

Claudia E. Korcarz, Alan T. Hirsch, Charles J Bruce, Jeanne M. DeCara, Emile R. Mohler, Bryan Pogue, John Postley, Wendy S. Tzou, James H. Stein

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Background: The purpose of this study was to determine whether a non-sonographer clinician (NSC) could obtain ultrasound images of the carotid artery, measure carotid intima-media thickness (CIMT), and identify findings indicating increased cardiovascular risk in an office setting. Methods: Eight NSCs from five sites were trained to use a handheld ultrasound device to screen the carotid arteries for plaques and to measure CIMT. Results: NSCs scanned 150 subjects who provided 900 images, of which 873 (97%) were interpretable. Differences between NSCs and the core laboratory were small (0.002 ± 0.004 mm) and bioequivalent (PTOST < 0.05) with a low coefficient of variation (3.9% ± 0.5%). There was ≥ 90% agreement on the presence of CIMT ≥ 75th percentile and ≥ 80% agreement on plaque presence. Conclusions: This is the first multicenter study to show that NSCs can obtain images of the carotid arteries using a handheld ultrasound device, accurately measure CIMT, and identify findings indicating increased cardiovascular risk.

Original languageEnglish (US)
Pages (from-to)117-122
Number of pages6
JournalJournal of the American Society of Echocardiography
Volume21
Issue number2
DOIs
StatePublished - Feb 2008

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Carotid Intima-Media Thickness
Carotid Artery Diseases
Carotid Arteries
Equipment and Supplies
Carotid Stenosis
Multicenter Studies

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

Cite this

Carotid Intima-Media Thickness Testing by Non-Sonographer Clinicians : The Office Practice Assessment of Carotid Atherosclerosis Study. / Korcarz, Claudia E.; Hirsch, Alan T.; Bruce, Charles J; DeCara, Jeanne M.; Mohler, Emile R.; Pogue, Bryan; Postley, John; Tzou, Wendy S.; Stein, James H.

In: Journal of the American Society of Echocardiography, Vol. 21, No. 2, 02.2008, p. 117-122.

Research output: Contribution to journalArticle

Korcarz, Claudia E. ; Hirsch, Alan T. ; Bruce, Charles J ; DeCara, Jeanne M. ; Mohler, Emile R. ; Pogue, Bryan ; Postley, John ; Tzou, Wendy S. ; Stein, James H. / Carotid Intima-Media Thickness Testing by Non-Sonographer Clinicians : The Office Practice Assessment of Carotid Atherosclerosis Study. In: Journal of the American Society of Echocardiography. 2008 ; Vol. 21, No. 2. pp. 117-122.
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