Gosling AF, Thalappillil R, Ortoleva J, Datta P, Cobey FC. Automated Spectral Doppler Profile Tracing.
J Cardiothorac Vasc Anesth 2019;
34:72-76. [PMID:
31416674 DOI:
10.1053/j.jvca.2019.06.018]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/10/2019] [Accepted: 06/12/2019] [Indexed: 11/11/2022]
Abstract
OBJECTIVE
The authors hypothesized that automated tracings of both pulsed wave (PW) and continuous wave (CW) Doppler correlate well with manual measurements performed by an experienced echocardiographer.
DESIGN
The authors performed a retrospective analysis of spectral Doppler profile measurements performed by automated software and an echocardiographer.
SETTING
University hospital, single institution.
PARTICIPANTS
The authors reviewed transesophageal echocardiographic examinations from patients undergoing transcatheter aortic valve (AV) replacement procedures at their institution.
INTERVENTIONS
No interventions were performed solely for research purposes.
MEASUREMENTS AND MAIN RESULTS
PW and CW spectral envelopes at the left ventricular outflow tract (LVOT) and AV were analyzed. Blinded, a board-certified echocardiographer performed manual measurements of the identical spectral envelopes. Peak velocities, mean gradients, and velocity time integrals (VTI) were collected. A total of 33 PW as well as 33 CW Doppler spectral envelopes were evaluated. There was no significant difference between the measurements provided by the automated software and manual tracings. LVOT PW VTI automated versus manual: 18.2 cm versus 15.9 cm, p = 0.11. AV CW VTI automated versus manual: 65.8 cm versus 64.8 cm, p = 0.90. AV CW mean gradient automated versus manual: 24.3 mmHg versus 23.4 mmHg, p = 0.84. AV CW peak velocity automated versus manual: 3.00 m/s versus 2.98 m/s, p = 0.93. Correlation coefficients were all above 0.9.
CONCLUSIONS
Automated measurements of peak velocities, mean gradients, and VTI of spectral Doppler correlate closely with manual measurements performed by an experienced echocardiographer.
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