Fast Automatic Measurement of Mitral Annulus Excursion Using a Pocket-Sized Ultrasound System

Snare, Sten Roar; Mjølstad, Ole Christian; Orderud, Fredrik; Haugen, Bjørn Olav; Torp, Hans

doi:10.1016/j.ultrasmedbio.2010.12.012

Cited by 12 publications

(17 citation statements)

References 23 publications

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“…Future work should also introduce software that may aid inexperienced users in getting better images and make automatic measurements of the MAE 25. It is also important to formalize training programmes in order to avoid misuse.…”

Section: Discussionmentioning

confidence: 99%

Assessment of left ventricular function by GPs using pocket-sized ultrasound

Mjølstad

Snare

Folkvord³

et al. 2012

Family Practice

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BackgroundAssessment of left ventricular (LV) function with echocardiography is mandatory in patients with suspected heart failure (HF).ObjectivesTo investigate if GPs were able to evaluate the LV function in patients at risk of developing or with established HF by using pocket-sized ultrasound (pUS).MethodsFeasibility study in general practice, seven GPs in three different Norwegian primary care centres participated. Ninety-two patients with reduced or at risk of developing reduced LV function were examined by their own GP using pUS. The scan (<5 minute) was done as part of a routine appointment. A cardiologist examined the patients <30 minutes afterwards with both a laptop scanner and pUS. Measurements of the septal mitral annular excursion (sMAE) were compared.ResultsIn 87% of the patients, the GPs were able to obtain a standard view and measure the sMAE. There was a non-significant mean difference in sMAE between GP pUS and cardiologist laptop scanner of −0.15 mm 95% confidence interval (−0.60 to 0.30) mm. A comparison of the pUS recordings and measurements of sMAE made by GP versus cardiologist revealed a non-significant mean difference with acceptable 95% limits of agreement (−0.26 ± 3.02 mm).ConclusionsWith tailored training, GPs were able to assess LV function with sMAE and pUS. pUS, as a supplement to the physical examination, may become an important tool in general practice.

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Section: Discussionmentioning

confidence: 99%

Assessment of left ventricular function by GPs using pocket-sized ultrasound

Mjølstad

Snare

Folkvord³

et al. 2012

Family Practice

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“…Helpful tools implemented in the scanner have been tested and may help inexperienced users to assess for example, left ventricular function and left ventricular hypertrophy [30,31]. Algorithms for automatic detection of cardiac cycles have been implemented in the scanner [32].…”

Section: Future Perspectivementioning

confidence: 99%

Feasibility and clinical implementation of hand-held echocardiography

Dalen

Haugen

Graven

2013

Expert Review of Cardiovascular Therapy

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Echocardiography is essential in the evaluation of patients with suspected or known cardiovascular disease. The development of pocket-size hand-held echocardiographic devices, suitable for a quick assessment of cardiac structures and function, has been shown to improve diagnostics and patient workflow. In the hands of experts, pocket-size machines capable of gray tone and color flow imaging offer high accuracy for the assessment of ventricular function, the detection of pericardial and pleural effusions and are suitable for semiquantitative evaluation of valvular function. The machines are also suitable for noncardiac imaging. Point-of-care echocardiography with pocket-size hand-held echocardiographic devices should be an integrated part of the physical examination of patients in many situations and will probably be performed by an increasing number of both experts and nonexperts as well. However, the benefit relies on the level of competence of the users and tailored training is needed to answer specific questions.

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“…The HUDs have so far been limited to 2‐dimensional imaging without the possibility of a quantitative analysis of left ventricle (LV) function such as the LV ejection fraction or mitral annular motion indices. Software‐based automatic measurements can aid the operator in the evaluation and quantification of heart disease 4,5 . Mitral annular plane systolic excursion (MAPSE) was first described in 1967 and acknowledged as a useful diagnostic measure in the late 1980s 6–8 .…”

mentioning

confidence: 99%

Feasibility and Reliability of Automatic Quantitative Analyses of Mitral Annular Plane Systolic Excursion by Handheld Ultrasound Devices

Magelssen

Palmer

Hjorth‐Hansen

et al. 2020

J of Ultrasound Medicine

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Objectives Handheld ultrasound devices (HUDs) have previously been limited to grayscale imaging without options for left ventricle (LV) quantification. We aimed to study the feasibility and reliability of automatic measurements of mitral annular plane systolic excursion (MAPSE) by HUDs. Methods An algorithm that automatically measured MAPSE from live grayscale recordings was implemented in a HUD. Twenty patients at a university hospital were examined by either a cardiologist or a sonographer. Standard echocardiography using a high‐end scanner was performed. The apical 4‐chamber view was recorded 4 times by both echocardiography and the HUD. MAPSE was measured by M‐mode and color tissue Doppler (cTD) during echocardiography and automatically by the HUD. Results The automatic method underestimated mean MAPSE ± SD versus M‐mode (9.6 ± 2.2 versus 10.9 ± 2.6 mm; difference, 1.2 ± 1.4 mm, P < .005). The difference between the automatic and cTD measurements was not significant (0.8 ± 1.8 mm; P = .073). The intraclass correlation coefficients (ICCs) between automatic and M‐mode measurements was 0.85, and 0.81 for cTD measurements. There was good agreement between the methods, and the intra‐ and inter‐rater ICCs were excellent for all methods (≥0.86). Conclusions In this novel study evaluating automatic quantification of LV longitudinal function by HUD, we showed the high feasibility and reliability of the method. Compared to M‐mode imaging, the automatic method underestimated MAPSE by 8% to 10%, but the difference with cTD imaging was nonsignificant. We conclude that this study's method for automatic quantitative assessment of LV function can be integrated in HUDs.

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Fast Automatic Measurement of Mitral Annulus Excursion Using a Pocket-Sized Ultrasound System

Cited by 12 publications

References 23 publications

Assessment of left ventricular function by GPs using pocket-sized ultrasound

Assessment of left ventricular function by GPs using pocket-sized ultrasound

Feasibility and clinical implementation of hand-held echocardiography

Feasibility and Reliability of Automatic Quantitative Analyses of Mitral Annular Plane Systolic Excursion by Handheld Ultrasound Devices

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