What question did this study set out to answer?

To assess the accuracy of real-time phased-array cross-sectional echocardiography for detecting left ventricular wall motion abnormalities and quantifying functional parameters compared with cineangiography.

January 1, 1980Japanese Heart JournalOpen Access

Real-Time, Phased-Array, Cross-Sectional Echocardiographic Evaluation of Left Ventricular Asynergy and Quantitation of Left Ventricular Function

View Full Paper

Ask AI

Bookmark

Why the study?

Does real-time cross-sectional echocardiography accurately evaluate left ventricular asynergy and function compared to invasive cineangiography?

Population

66 patients undergoing cardiac catheterization with ischemic heart disease and other diseases, mean age 53…

Comparison

Real-time, phased-array, cross-sectional… vs Left ventricular cineangiography (ANGIO)

Design

Cross-sectional, Evaluation of wall motion was performed using visual…

Authors

YOYasuyoshi OhuchiThe University of Tokyo KKK KuwakoTeikyo University TUT UmedaChiba University

Discussion

Member takes

Implication

May support echocardiography for non-invasive LV assessment; leaves open prospective validation versus angiography.

Key Points

To assess the accuracy of real-time phased-array cross-sectional echocardiography for detecting left ventricular wall motion abnormalities and quantifying functional parameters compared with cineangiography.
Assessed 66 patients with ischemic heart disease and other cardiac disorders using real-time phased-array cross-sectional echocardiography and cineangiography.
Segmented the left ventricular wall into 7 anatomical regions per patient (462 total segments) across two tomographic planes.
Calculated left ventricular chamber volume and ejection fraction from the RAO equivalent plane using an area-length method.
Echocardiography visualized 89.6% of segments (414/462), achieving 94.2% concordance (390/414) with cineangiography alongside 24 slight discrepancies.
Calculated left ventricular volume and ejection fraction correlated strongly with cineangiography (r = 0.84 and r = 0.88, respectively), including in patients with wall motion abnormalities.

Structured PICO

Does real-time cross-sectional echocardiography accurately evaluate left ventricular asynergy and function compared to invasive cineangiography?

Population

66 patients undergoing cardiac catheterization with ischemic heart disease and other diseases, mean age 53 years (range 17-71), 55 males and 11 females.

Intervention

Real-time, phased-array, cross-sectional echocardiography (ECHO)

Comparator

Left ventricular cineangiography (ANGIO)

Outcome

Concordance of left ventricular wall motion assessment (asynergy) and correlation of left ventricular volume and ejection fraction between ECHO and ANGIOsurrogate

Real-time cross-sectional echocardiography is a highly accurate, non-invasive alternative to cineangiography for detecting left ventricular asynergy and quantifying ejection fraction.

Limitations

Frequent poor visualization of the endocardial echo (volume successfully evaluated in only 57.6% of cases)
Difficulty differentiating slight hypokinesis from normokinesis by visual inspection
Planes observed in echocardiography and cineangiography are not completely identical
Echocardiography gives a true cross-sectional image while cineangiography produces a projected image

Cite This Study

Ohuchi et al. (1980) studied this question.

synapsesocial.com/papers/6a0cd040291fe4aa6262565f https://doi.org/10.1536/ihj.21.1

Topics

Echocardiography

View Full Paper

Ask AI

Bookmark

Real-Time, Phased-Array, Cross-Sectional Echocardiographic Evaluation of Left Ventricular Asynergy and Quantitation of Left Ventricular Function

Discussion

Member takes

Implication

Key Points

Structured PICO

Limitations

Cite This Study

Topics

Real-Time, Phased-Array, Cross-Sectional Echocardiographic Evaluation of Left Ventricular Asynergy and Quantitation of Left Ventricular Function

Discussion

Member takes

Implication

Key Points

Structured PICO

Limitations

Cite This Study

Also Consider

Topics

Also Consider