Tags

Type your tag names separated by a space and hit enter

Is there an underestimation of intima-media thickness based on M-mode ultrasound technique in the abdominal aorta?
Clin Physiol Funct Imaging 2012; 32(1):1-4CP

Abstract

Measuring intima-media thickness (IMT) in the common carotid artery (CCA) is a valuable resource for the evaluation of subclinical atherosclerosis. The main objective of this study was to explore whether a B-mode ultrasound technique, Philips ATL, and an M-mode ultrasound technique, Wall Track System (WTS), show interchangeable results when measured in CCA and the abdominal aorta (AA). A total of 24 healthy, young subjects were examined. IMT and lumen diameter (LD) of the AA and the CCA were measured twice by two skilled ultrasonographers with two different ultrasound equipment B-mode: (Philips, ATL and M-mode: WTS).The intra-observer variability of IMT in CCA and AA using B-mode showed a coefficient of variation 8% and 9%, and with M-mode 11% and 15%, respectively. Interobserver variability of IMT in CCA and AA using B-mode was 6% and 12%, and with M-mode 11% and 18%, respectively. CCA IMT was 0·53 ± 0·07 and 0·53 ± 0·09 mm using B-mode and M-mode, respectively. However, in AA, IMT was 0·61 ± 0·05 and 0·54 ± 0·10 mm using B-mode and M-mode, respectively. Thus, AA IMT was 11·5% thicker using B-mode (P < 0·01). We received adequate IMT readings from the carotid artery as well as the AA using two commonly used B-mode and M-mode techniques. B-mode technique seems to show less variability, especially in the AA. More importantly, the two techniques measured different IMT thickness in the aorta, emphasizing the importance of using similar technique when comparing the impact of absolute values of IMT on cardiovascular disease.

Authors+Show Affiliations

Department of Medical and Health Sciences, Linköping University, Linköping, Sweden. elsa.dahlen@liu.seNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22152072

Citation

Dahlén, Elsa M., et al. "Is There an Underestimation of Intima-media Thickness Based On M-mode Ultrasound Technique in the Abdominal Aorta?" Clinical Physiology and Functional Imaging, vol. 32, no. 1, 2012, pp. 1-4.
Dahlén EM, Andreasson T, Cinthio M, et al. Is there an underestimation of intima-media thickness based on M-mode ultrasound technique in the abdominal aorta? Clin Physiol Funct Imaging. 2012;32(1):1-4.
Dahlén, E. M., Andreasson, T., Cinthio, M., Nystrom, F. H., Östgren, C. J., & Länne, T. (2012). Is there an underestimation of intima-media thickness based on M-mode ultrasound technique in the abdominal aorta? Clinical Physiology and Functional Imaging, 32(1), pp. 1-4. doi:10.1111/j.1475-097X.2011.01045.x.
Dahlén EM, et al. Is There an Underestimation of Intima-media Thickness Based On M-mode Ultrasound Technique in the Abdominal Aorta. Clin Physiol Funct Imaging. 2012;32(1):1-4. PubMed PMID: 22152072.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Is there an underestimation of intima-media thickness based on M-mode ultrasound technique in the abdominal aorta? AU - Dahlén,Elsa M, AU - Andreasson,Thomas, AU - Cinthio,Magnus, AU - Nystrom,Fredrik H, AU - Östgren,Carl Johan, AU - Länne,Toste, Y1 - 2011/08/11/ PY - 2011/12/14/entrez PY - 2011/12/14/pubmed PY - 2012/4/11/medline SP - 1 EP - 4 JF - Clinical physiology and functional imaging JO - Clin Physiol Funct Imaging VL - 32 IS - 1 N2 - Measuring intima-media thickness (IMT) in the common carotid artery (CCA) is a valuable resource for the evaluation of subclinical atherosclerosis. The main objective of this study was to explore whether a B-mode ultrasound technique, Philips ATL, and an M-mode ultrasound technique, Wall Track System (WTS), show interchangeable results when measured in CCA and the abdominal aorta (AA). A total of 24 healthy, young subjects were examined. IMT and lumen diameter (LD) of the AA and the CCA were measured twice by two skilled ultrasonographers with two different ultrasound equipment B-mode: (Philips, ATL and M-mode: WTS).The intra-observer variability of IMT in CCA and AA using B-mode showed a coefficient of variation 8% and 9%, and with M-mode 11% and 15%, respectively. Interobserver variability of IMT in CCA and AA using B-mode was 6% and 12%, and with M-mode 11% and 18%, respectively. CCA IMT was 0·53 ± 0·07 and 0·53 ± 0·09 mm using B-mode and M-mode, respectively. However, in AA, IMT was 0·61 ± 0·05 and 0·54 ± 0·10 mm using B-mode and M-mode, respectively. Thus, AA IMT was 11·5% thicker using B-mode (P < 0·01). We received adequate IMT readings from the carotid artery as well as the AA using two commonly used B-mode and M-mode techniques. B-mode technique seems to show less variability, especially in the AA. More importantly, the two techniques measured different IMT thickness in the aorta, emphasizing the importance of using similar technique when comparing the impact of absolute values of IMT on cardiovascular disease. SN - 1475-097X UR - https://www.unboundmedicine.com/medline/citation/22152072/Is_there_an_underestimation_of_intima_media_thickness_based_on_M_mode_ultrasound_technique_in_the_abdominal_aorta L2 - https://doi.org/10.1111/j.1475-097X.2011.01045.x DB - PRIME DP - Unbound Medicine ER -