P8.04 CAROTID INTIMA-MEDIA THICKNESS: COMPARISONS BETWEEN SEMI-AUTOMATIC EDGE DETECTION METHOD VERSUS A NEW AUTOMATIC ECHO TRACKING SYSTEM

G.P.N. Leftheriotis; R. Hamza; B. Levy; A. Taquet; L. Bressolette; M. Dauzat; P. Boutouyrie

doi:10.1016/j.artres.2010.10.086

<Previous Article In Issue

Download article (PDF)

Next Article In Issue>

Volume 4, Issue 4, December 2010, Pages 170 - 170

P8.04 CAROTID INTIMA-MEDIA THICKNESS: COMPARISONS BETWEEN SEMI-AUTOMATIC EDGE DETECTION METHOD VERSUS A NEW AUTOMATIC ECHO TRACKING SYSTEM

Authors

G.P.N. Leftheriotis¹, R. Hamza¹, B. Levy², A. Taquet⁵, L. Bressolette⁴, M. Dauzat⁶, P. Boutouyrie³

¹UMR CNRS 6214-Inserm 771 - CHU Angers, Angers, France

²Unité Inserm 689 - Cardiovascular Research Centre - Hop. Lariboisière, Paris, France

³UMRS 872 - Équipe 1 - HEGP, Paris, France

⁴Service de Médecine Interne - CHU Brest, Brest, France

⁵Cabinet Angiologie - Prévention, Paris, France

⁶EA 2992 Univ Montpellier 1 - CHU Nimes, Nimes, France

Available Online 2 December 2010.

DOI: 10.1016/j.artres.2010.10.086 How to use a DOI?
Open Access: This is an open access article distributed under the CC BY-NC license.

Rationale: The intima-media thickness (IMT) of the common carotid artery is a widely used clinical marker of cardiovascular diseases. To date, IMT is measured from longitudinal B-mode ultrasound images using manual or imaging analysis methods. Real-time automatic tracking of the lumen-intima and media-adventitia echoes using multi-echotracking technology could overcome some limits of manual and imaging analysis methods.

Material and methods: Common carotid intima-media thickness measured with a new multi-echotracking system (QIMT – Esaote - Italy) was compared to a semi-automatic edge detection imaging analysis method (IMT@televasc, www.televasc.fr, France) from B-mode ultrasound images.

Results: 93 scans were analyzed with both techniques on the same scans and from both carotids in 57 patients (age 55 +/− 17, 34 males). Mean QIMT was higher than IMT@televasc (690+/−173 vs 662+/−135, p<0.0001). Coefficient of variability for QIMT was 5% and 16 % for the IMT@televasc without significant inter-observer differences. Correlation coefficient were r= 0.657 (p<0.001, QIMT = IMT@televasc . 0.84 (+/−0.09) + 134+/−66 μm). Bland Altman plot did not showed systematic bias.

Discussion: QMIT gives more reproducible values of IMT than IMT@televasc with a significant correlation between the 2 methods. There was a systematic difference in absolute value between both techniques, values provided being higher with QIMT than with IMT@televasc. Conversion tables are needed for comparisons between echotracking technology and edge detection imaging analysis method for the routine use and follow up of the patients.

Acknowledgements

Mr Martin D, Esaote company and V de Germain, Televasc

<Previous Article In Issue

Download article (PDF)

Next Article In Issue>

Journal: Artery Research
Volume-Issue: 4 - 4
Pages: 170 - 170
Publication Date: 2010/12/02
ISSN (Online): 1876-4401
ISSN (Print): 1872-9312
DOI: 10.1016/j.artres.2010.10.086 How to use a DOI?
Open Access: This is an open access article distributed under the CC BY-NC license.

Cite this article

ris enw bib

TY  - JOUR
AU  - G.P.N. Leftheriotis
AU  - R. Hamza
AU  - B. Levy
AU  - A. Taquet
AU  - L. Bressolette
AU  - M. Dauzat
AU  - P. Boutouyrie
PY  - 2010
DA  - 2010/12/02
TI  - P8.04 CAROTID INTIMA-MEDIA THICKNESS: COMPARISONS BETWEEN SEMI-AUTOMATIC EDGE DETECTION METHOD VERSUS A NEW AUTOMATIC ECHO TRACKING SYSTEM
JO  - Artery Research
SP  - 170
EP  - 170
VL  - 4
IS  - 4
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2010.10.086
DO  - 10.1016/j.artres.2010.10.086
ID  - Leftheriotis2010
ER  -

download .riscopy to clipboard