What question did this study set out to answer?

May 1, 1995Radiology

Improved ejection fraction and flow velocity estimates with use of view sharing and uniform repetition time excitation with fast cardiac techniques.

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Why the study?

Does view sharing and uniform TR RF excitation improve the accuracy of ventricular volume estimates in fast cardiac MRI?

Population

Simulated model, patients, and volunteers undergoing fast cardiac MRI acquisitions

Comparison

View sharing and uniform repetition time… vs Standard fast cardiac acquisitions without view…

Design

Other

Authors

TFThomas FooGE Global Research (United States)MBMatt A. BernsteinUniversity of Stuttgart AAAlex M. AisenPhilips (Finland)

Discussion

Member takes

Implication

May refine ventricular volumetry in accelerated cardiac MRI; leaves open prospective validation before clinical adoption.

Key Points

To improve the accuracy of ventricular volume measurements and effective temporal resolution in fast cardiac MRI acquisitions.
Generated intermediate temporal phase datasets by sharing views between temporally adjacent data frames.
Implemented the technique across fast gradient-echo and fast phase-contrast cine acquisitions with breath-holding.
Evaluated performance using a simulated model alongside studies in volunteers and patients.
Uniform repetition time radio-frequency excitation improved the assessment of end-diastolic ventricular volume.
View sharing provided better estimates of end-systolic ventricular volume during rapid volume transitions near temporal image boundaries.
Dynamic cardiac motion appeared noticeably smoother when viewed in cine loops with view sharing.

Structured PICO

Does view sharing and uniform TR RF excitation improve the accuracy of ventricular volume estimates in fast cardiac MRI?

Population

Simulated model, patients, and volunteers undergoing fast cardiac MRI acquisitions

Intervention

View sharing and uniform repetition time (TR) radio-frequency (RF) excitation in fast gradient-echo and fast phase-contrast cine acquisitions

Comparator

Standard fast cardiac acquisitions without view sharing or uniform TR RF excitation

Outcome

Accuracy of end-systolic and end-diastolic ventricular volume measurements and effective temporal resolutionsurrogate

View sharing and uniform TR RF excitation improve the accuracy of ventricular volume measurements in fast cardiac MRI by enhancing effective temporal resolution.

Cite This Study

Foo et al. (1995) studied this question.

synapsesocial.com/papers/69fea850c28c7d12f5f0caae https://doi.org/10.1148/radiology.195.2.7724769

Topics

Tricuspid regurgitation Congenital heart disease adults

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Improved ejection fraction and flow velocity estimates with use of view sharing and uniform repetition time excitation with fast cardiac techniques.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

Improved ejection fraction and flow velocity estimates with use of view sharing and uniform repetition time excitation with fast cardiac techniques.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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Topics

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