Pericardial thickness measured with transesophageal echocardiography: Feasibility and potential clinical usefulness

Lieng H. Ling, Jae Kuen Oh, Chuwa Tei, Roger L. Click, Jerome F. Breen, James B. Seward, A. Jamil Tajik

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Abstract

Objectives. This study assessed the reliability of transesophageal echocardiographic measurements of pericardial thickness and the potential diagnostic usefulness of this technique. Background. Transthoracic echocardiography cannot reliably detect thickened pericardium. The superior resolution achieved with transesophageal echocardiography should allow better pericardial definition. Methods. Pericardial thickness measured at 26 locations in 11 patients with constrictive pericarditis who underwent intraoperative transesophageal echocardiography was compared with pericardial thickness measured with electron beam computed tomography. Intraobserver and interobserver variabilities were determined. Pericardial thickness was then measured in 21 normal subjects. With these values as a guide, two observers reviewed 37 transesophageal echocardiographic studies to determine whether echocardiographic measurement of pericardial thickness could be used to distinguish diseased from normal pericardium. Results. The correlation between echocardiographic and computed tomographic measurements (r ≤ 0.95, SE ≤ 0.06 mm, p < 0.0001) was excellent. The ±2 SD limits of agreement were ± 1.0 mm or less for pericardial thickness <5.5 mm and ±2.0 mm or less for the entire range of thicknesses. Intraobserver and interobserver agreements were good. Mean normal pericardial thickness was 1.2 ± 0.8 mm (±2 SD) and did not exceed 2.5 mm. Pericardial thickness ≤3 mm on transesophageal echocardiography was 95% sensitive and 86% specific for the detection of thickened pericardium. Conclusions. Measurement of pericardial thickness with transesophageal echocardiography is reproducible and should be a valuable adjunct in assessing constrictive pericarditis.

Original languageEnglish (US)
Pages (from-to)1317-1323
Number of pages7
JournalJournal of the American College of Cardiology
Volume29
Issue number6
DOIs
StatePublished - May 1997

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Transesophageal Echocardiography
Pericardium
Constrictive Pericarditis
X Ray Computed Tomography
Observer Variation
Echocardiography

ASJC Scopus subject areas

  • Nursing(all)

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Pericardial thickness measured with transesophageal echocardiography : Feasibility and potential clinical usefulness. / Ling, Lieng H.; Oh, Jae Kuen; Tei, Chuwa; Click, Roger L.; Breen, Jerome F.; Seward, James B.; Tajik, A. Jamil.

In: Journal of the American College of Cardiology, Vol. 29, No. 6, 05.1997, p. 1317-1323.

Research output: Contribution to journalArticle

Ling, Lieng H. ; Oh, Jae Kuen ; Tei, Chuwa ; Click, Roger L. ; Breen, Jerome F. ; Seward, James B. ; Tajik, A. Jamil. / Pericardial thickness measured with transesophageal echocardiography : Feasibility and potential clinical usefulness. In: Journal of the American College of Cardiology. 1997 ; Vol. 29, No. 6. pp. 1317-1323.
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abstract = "Objectives. This study assessed the reliability of transesophageal echocardiographic measurements of pericardial thickness and the potential diagnostic usefulness of this technique. Background. Transthoracic echocardiography cannot reliably detect thickened pericardium. The superior resolution achieved with transesophageal echocardiography should allow better pericardial definition. Methods. Pericardial thickness measured at 26 locations in 11 patients with constrictive pericarditis who underwent intraoperative transesophageal echocardiography was compared with pericardial thickness measured with electron beam computed tomography. Intraobserver and interobserver variabilities were determined. Pericardial thickness was then measured in 21 normal subjects. With these values as a guide, two observers reviewed 37 transesophageal echocardiographic studies to determine whether echocardiographic measurement of pericardial thickness could be used to distinguish diseased from normal pericardium. Results. The correlation between echocardiographic and computed tomographic measurements (r ≤ 0.95, SE ≤ 0.06 mm, p < 0.0001) was excellent. The ±2 SD limits of agreement were ± 1.0 mm or less for pericardial thickness <5.5 mm and ±2.0 mm or less for the entire range of thicknesses. Intraobserver and interobserver agreements were good. Mean normal pericardial thickness was 1.2 ± 0.8 mm (±2 SD) and did not exceed 2.5 mm. Pericardial thickness ≤3 mm on transesophageal echocardiography was 95{\%} sensitive and 86{\%} specific for the detection of thickened pericardium. Conclusions. Measurement of pericardial thickness with transesophageal echocardiography is reproducible and should be a valuable adjunct in assessing constrictive pericarditis.",
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N2 - Objectives. This study assessed the reliability of transesophageal echocardiographic measurements of pericardial thickness and the potential diagnostic usefulness of this technique. Background. Transthoracic echocardiography cannot reliably detect thickened pericardium. The superior resolution achieved with transesophageal echocardiography should allow better pericardial definition. Methods. Pericardial thickness measured at 26 locations in 11 patients with constrictive pericarditis who underwent intraoperative transesophageal echocardiography was compared with pericardial thickness measured with electron beam computed tomography. Intraobserver and interobserver variabilities were determined. Pericardial thickness was then measured in 21 normal subjects. With these values as a guide, two observers reviewed 37 transesophageal echocardiographic studies to determine whether echocardiographic measurement of pericardial thickness could be used to distinguish diseased from normal pericardium. Results. The correlation between echocardiographic and computed tomographic measurements (r ≤ 0.95, SE ≤ 0.06 mm, p < 0.0001) was excellent. The ±2 SD limits of agreement were ± 1.0 mm or less for pericardial thickness <5.5 mm and ±2.0 mm or less for the entire range of thicknesses. Intraobserver and interobserver agreements were good. Mean normal pericardial thickness was 1.2 ± 0.8 mm (±2 SD) and did not exceed 2.5 mm. Pericardial thickness ≤3 mm on transesophageal echocardiography was 95% sensitive and 86% specific for the detection of thickened pericardium. Conclusions. Measurement of pericardial thickness with transesophageal echocardiography is reproducible and should be a valuable adjunct in assessing constrictive pericarditis.

AB - Objectives. This study assessed the reliability of transesophageal echocardiographic measurements of pericardial thickness and the potential diagnostic usefulness of this technique. Background. Transthoracic echocardiography cannot reliably detect thickened pericardium. The superior resolution achieved with transesophageal echocardiography should allow better pericardial definition. Methods. Pericardial thickness measured at 26 locations in 11 patients with constrictive pericarditis who underwent intraoperative transesophageal echocardiography was compared with pericardial thickness measured with electron beam computed tomography. Intraobserver and interobserver variabilities were determined. Pericardial thickness was then measured in 21 normal subjects. With these values as a guide, two observers reviewed 37 transesophageal echocardiographic studies to determine whether echocardiographic measurement of pericardial thickness could be used to distinguish diseased from normal pericardium. Results. The correlation between echocardiographic and computed tomographic measurements (r ≤ 0.95, SE ≤ 0.06 mm, p < 0.0001) was excellent. The ±2 SD limits of agreement were ± 1.0 mm or less for pericardial thickness <5.5 mm and ±2.0 mm or less for the entire range of thicknesses. Intraobserver and interobserver agreements were good. Mean normal pericardial thickness was 1.2 ± 0.8 mm (±2 SD) and did not exceed 2.5 mm. Pericardial thickness ≤3 mm on transesophageal echocardiography was 95% sensitive and 86% specific for the detection of thickened pericardium. Conclusions. Measurement of pericardial thickness with transesophageal echocardiography is reproducible and should be a valuable adjunct in assessing constrictive pericarditis.

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