Comparative measurement of aortic root by transthoracic echocardiography in normal Korean population based on two different guidelines

Myoung Kyun Son, Sung A. Chang, Ji Hye Kwak, Hye Jin Lim, Sung Ji Park, Jin Oh Choi, Sang Chol Lee, Seung Woo Park, Duk Kyung Kim, Jae Kuen Oh

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Background: Aortic root size is an important parameter in vascular diseases and can be easily assessed by transthoracic echocardiography. However, measurements values may vary according to cardiac cycle and the definition used for edge. This study aimed to define normal values according to the measurement method specified by two different guidelines to determine the influence of the different methods on echocardiographic measurements. Methods. Healthy Korean adults were enrolled. The aortic root diameters were measured twice at four levels (aortic annulus, sinuses of Valsalva, sinotubular junction, and ascending aorta) by the 2005 American Society of Echocardiography (ASE) guidelines (measured from leading edge to leading edge during diastole) and the 2010 ASE pediatric guidelines (measured from inner edge to inner edge during systole). Results: One hundred twelve subjects aged 20-69 years were enrolled. The aortic diameters (cm) determine by the aforementioned two guidelines showed significant difference. Measurements were larger in 2005 ASE guideline at aortic annuls, sinuses of Valsalva, and sinotubular junction level, but smaller at ascending aortic level with 2-3mm of differences. Intraobserver variability was similarly good, but interobserver variability was slightly higher than intraobserver variability in both measurement methods. BSA and age was most important determinant for aortic root size. Conclusions: The measurement method of aortic root can affect the echocardiographic result. The measurement method should be noted when assessing clinical significance of aortic root measurement.

Original languageEnglish (US)
Article number28
JournalCardiovascular Ultrasound
Volume11
Issue number1
DOIs
StatePublished - 2013

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Echocardiography
Sinus of Valsalva
Guidelines
Observer Variation
Population
Diastole
Systole
Vascular Diseases
Aorta
Reference Values
Pediatrics

Keywords

  • Aortic root measurement
  • Normal reference
  • Transthoracic echocardiography

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Radiology Nuclear Medicine and imaging

Cite this

Comparative measurement of aortic root by transthoracic echocardiography in normal Korean population based on two different guidelines. / Son, Myoung Kyun; Chang, Sung A.; Kwak, Ji Hye; Lim, Hye Jin; Park, Sung Ji; Choi, Jin Oh; Lee, Sang Chol; Park, Seung Woo; Kim, Duk Kyung; Oh, Jae Kuen.

In: Cardiovascular Ultrasound, Vol. 11, No. 1, 28, 2013.

Research output: Contribution to journalArticle

Son, Myoung Kyun ; Chang, Sung A. ; Kwak, Ji Hye ; Lim, Hye Jin ; Park, Sung Ji ; Choi, Jin Oh ; Lee, Sang Chol ; Park, Seung Woo ; Kim, Duk Kyung ; Oh, Jae Kuen. / Comparative measurement of aortic root by transthoracic echocardiography in normal Korean population based on two different guidelines. In: Cardiovascular Ultrasound. 2013 ; Vol. 11, No. 1.
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AB - Background: Aortic root size is an important parameter in vascular diseases and can be easily assessed by transthoracic echocardiography. However, measurements values may vary according to cardiac cycle and the definition used for edge. This study aimed to define normal values according to the measurement method specified by two different guidelines to determine the influence of the different methods on echocardiographic measurements. Methods. Healthy Korean adults were enrolled. The aortic root diameters were measured twice at four levels (aortic annulus, sinuses of Valsalva, sinotubular junction, and ascending aorta) by the 2005 American Society of Echocardiography (ASE) guidelines (measured from leading edge to leading edge during diastole) and the 2010 ASE pediatric guidelines (measured from inner edge to inner edge during systole). Results: One hundred twelve subjects aged 20-69 years were enrolled. The aortic diameters (cm) determine by the aforementioned two guidelines showed significant difference. Measurements were larger in 2005 ASE guideline at aortic annuls, sinuses of Valsalva, and sinotubular junction level, but smaller at ascending aortic level with 2-3mm of differences. Intraobserver variability was similarly good, but interobserver variability was slightly higher than intraobserver variability in both measurement methods. BSA and age was most important determinant for aortic root size. Conclusions: The measurement method of aortic root can affect the echocardiographic result. The measurement method should be noted when assessing clinical significance of aortic root measurement.

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