Is the technically limited echocardiographic study an endangered species? Endocardial border definition with native tissue harmonic imaging and optison contrast: A review of 200 cases

Vinay Malhotra, John Nwogu, Mary D. Bondmass, Maurice Bean, Teresa Bieniarz, Meg Tertell, Maureen Conliss, Stephen Devries*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Objective: Our goal was to determine whether contrast adds diagnostic value to both fundamental and native tissue harmonic imaging (NTHI) for endocardial border definition. Methods: Two hundred consecutive patients who underwent stress echocardiography imaging were studied in either fundamental (n = 52) or NTHI mode (n = 148) with an Acuson Sequoia echocardiographic system. Contrast agent (Optison) was administered (0.5 to 1 mL) for enhancement of endocardial borders. Two- and 4-chamber views were analyzed before and after administration of contrast at peak stress for grading of 5 endocardial border segments. Scores from 0 to 5 were assigned to each study for all the images both before and after contrast (0 = 0 segments completely visualized; 5 = 5 segments completely visualized). Results: The use of Optison contrast significantly enhanced border definition when imaging was performed in either fundamental or NTHI mode. Addition of contrast resulted in better endocardial border definition in fundamental mode (4.1 ± 1.0 versus 2.3 ± 1.3, P < .001). However, in NTHI mode, the presence of contrast resulted in enhanced definition of endocardial border compared with its absence (4.8 ± 0.5 versus 3.3 ± 1.1, P < .001). The combination of NTHI and contrast resulted in more visualization of endocardium when compared with the combination of fundamental imaging and contrast (4.8 ± 0.5 versus 4.1 ± 1.0, P < .001). In addition, interobserver agreement for border detection increased from 83% in fundamental mode without contrast to 95% with the use of NTHI with Optison (P < .001). Conclusion: As defined in 200 cases, the combination of NTHI with Optison contrast results in nearly complete and consistent endocardial border definition.

Original languageEnglish (US)
Pages (from-to)771-773
Number of pages3
JournalJournal of the American Society of Echocardiography
Volume13
Issue number8
DOIs
StatePublished - Jan 1 2000

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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