What does this research mean for the field?

Two-dimensional ultrasound speckle tracking imaging accurately measures left ventricular torsion with strong concordance to tagged MRI and Doppler tissue imaging. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

September 19, 2026Journal of the American College of CardiologyOpen Access

Measurement of Ventricular Torsion by Two-Dimensional Ultrasound Speckle Tracking Imaging

Q: What are the key findings of this study?

Ultrasound speckle tracking imaging estimation of left ventricular torsion strongly correlated with tagged MRI (r=0.93, p<0.0001) and Doppler tissue imaging (r=0.76, p<0.0001).

Q: What is the clinical evidence from this study?

Study design: Observational. Intervention: Ultrasound speckle tracking imaging (STI) vs. Tagged magnetic resonance imaging (MRI) and Doppler tissue imaging (DTI). Primary outcome: Correlation of left ventricular torsion profile (r = 0.93, p=<0.0001).

Q: What question did this study set out to answer?

To evaluate the feasibility and utility of two-dimensional ultrasound speckle tracking imaging for measuring left ventricular torsion.

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Key result

Ultrasound speckle tracking strongly correlates with tagged MRI for estimating LV torsion.

r = 0.93
P<0.0001
n=15

Why the study?

Left ventricular torsion is a key parameter of cardiac performance but is difficult to measure, though ultrasound speckle tracking imaging is potentially suitable due to angle-independence.

Population

15 patients

Comparison

Ultrasound speckle tracking imaging vs tagged MRI and DTI

Design

Comparative imaging validation study

Authors

YNYuichi NotomiCleveland Clinic TSTakahiro ShiotaStructural Heart Disease ZPZoran PopovićNorthwestern University

Discussion

Member takes

Implication

Imaging study demonstrates measurement of ventricular torsion using ultrasound speckle tracking in patients, highlighting noninvasive evaluation of myocardial mechanics.

Key Points

To evaluate the feasibility and utility of two-dimensional ultrasound speckle tracking imaging for measuring left ventricular torsion.
Acquired two-dimensional echocardiographic images to capture basal and apical short-axis planes of the left ventricle.
Tracked acoustic speckle displacement frame-by-frame across the cardiac cycle to quantify rotation and net ventricular torsion.
Demonstrated accurate tracking of myocardial speckle motion to quantify opposing basal and apical left ventricular rotational mechanics.
Provided a noninvasive, angle-independent ultrasound method for calculating left ventricular torsion throughout systole and diastole.

Study Design

Type

Observational (n=15)

PICO

Population

15 patients undergoing left ventricular torsion measurement to compare ultrasound speckle tracking imaging with tagged MRI and Doppler tissue imaging.

Exposure / Comparator

Ultrasound speckle tracking imaging (STI) vs Tagged magnetic resonance imaging (MRI) and Doppler tissue imaging (DTI)

Primary Outcome

Correlation of left ventricular torsion profile — r = 0.93, p=<0.0001

Main Result

Effect estimate: r = 0.93

p-value: p=<0.0001

Cite This Study

Notomi et al. (2005) reported an observational. Ultrasound speckle tracking imaging (STI) vs. Tagged magnetic resonance imaging (MRI) and Doppler tissue imaging (DTI) was evaluated on Correlation of left ventricular torsion profile (r = 0.93, p=<0.0001). Ultrasound speckle tracking imaging estimation of left ventricular torsion strongly correlated with tagged MRI (r=0.93, p<0.0001) and Doppler tissue imaging (r=0.76, p<0.0001).

synapsesocial.com/papers/6aaefb8e7511296a694e504d https://doi.org/10.1016/j.jacc.2005.02.082

Topics

Echocardiography

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Implication

Imaging study demonstrates measurement of ventricular torsion using ultrasound speckle tracking in patients, highlighting noninvasive evaluation of myocardial mechanics.

Measurement of Ventricular Torsion by Two-Dimensional Ultrasound Speckle Tracking Imaging

Discussion

Member takes

Implication

Key Points

Study Design

PICO

Main Result

Cite This Study

Topics

Measurement of Ventricular Torsion by Two-Dimensional Ultrasound Speckle Tracking Imaging

Discussion

Member takes

Implication

Key Points

Study Design

PICO

Main Result

Cite This Study

Also Consider

Topics

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