Strain Imaging Flashcards

Flashcards generated from a lecture on strain imaging, covering parameters, techniques, and clinical applications.

Longitudinal Strain

Determines the change in length along the longitudinal orientation; typically a negative value during systole as the heart muscle shortens.

Conferential Strain

Measures the change in the subconferential length after systole, also becoming shorter.

Three-Dimensional Strain

Provides a three-dimensional assessment of strain, capturing motion beyond the 2D plane.

Tissue Doppler Imaging

A technique used for strain imaging characterized by high temporal resolution but requiring dedicated acquisition.

Longitudinal Strain

More sensitive for detecting LV dysfunction compared to ejection fraction, allowing for global and regional assessment.

Ejection Fraction

A global marker that may not detect early systolic impairment as effectively as longitudinal strain.

Aortic Valve Closure Time

Critical for accurate strain analysis, requires careful attention and marking during acquisition.

Peak Strain

The most negative strain value across the entire cardiac cycle, regardless of timing.

Peak Systolic Strain

The most negative strain value at any time point in systole before aortic valve closure, considered most clinically useful.

Vendor Setting

Can affect strain values based on whether the full wall or endocardium is analyzed.

Inappropriate Region of Interest

Leads to lower strain values; proper tracking within the myocardial portion is essential.