What does this research mean for the field?

Velocity-encoded cine MR imaging with oblique-gradient flow encoding enables accurate and reproducible measurement of absolute pulmonary blood flow, correlating well with Doppler echocardiography. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to assess the accuracy of velocity-encoded cine MR imaging for measuring pulmonary blood flow.

September 1, 1991Radiology

Right and left lung perfusion: in vitro and in vivo validation with oblique-angle, velocity-encoded cine MR imaging.

Q: What is the clinical evidence from this study?

Study design: Observational. Population: Healthy volunteers (n=9). Intervention: Velocity-encoded cine MR imaging vs. Doppler echocardiography. Primary outcome: Measurement of oblique-angle flow velocity and volume.

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Key result

Velocity-encoded cine MR imaging enabled accurate and reproducible measurement of absolute blood flow in healthy subjects, correlating well with Doppler echocardiography.

Why the study?

Does velocity-encoded cine MR imaging accurately measure pulmonary blood flow compared to Doppler echocardiography?

Population

In vitro constant-flow phantom and 9 healthy volunteers

Comparison

Velocity-encoded cine MR imaging with… vs Doppler echocardiography and direct measurements

Authors

GCGary R. CaputoUniversity of California Davis Medical Center CKChisato KondoTokyo Women's Medical University Hospital TMTakayuki MasuiSeirei Hamamatsu General Hospital

Discussion

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Implication

Supports MR flow quantification in healthy subjects; leaves open validation and clinical adoption in disease.

Key Points

This research aims to assess the accuracy of velocity-encoded cine MR imaging for measuring pulmonary blood flow.
Conducted in vitro validation using a constant-flow phantom.
Performed in vivo measurements with nine healthy volunteers.
Compared magnetic resonance findings with Doppler echocardiography results.
Velocity measurements in the flow phantom correlated well with Doppler echocardiography (p < 0.001).
Cine MR provided accurate and reproducible measurements of absolute blood flow in healthy subjects.
Oblique-gradient flow encoding was optimal for measuring velocities in the right and left pulmonary arteries.

Study Design

Type

Observational (n=9)

Structured PICO

Does velocity-encoded cine MR imaging accurately measure pulmonary blood flow compared to Doppler echocardiography?

Population

In vitro constant-flow phantom and 9 healthy volunteers

Intervention

Velocity-encoded cine MR imaging with oblique-angle flow encoding

Comparator

Doppler echocardiography and direct measurements

Outcome

Accuracy and reproducibility of velocity and volume of blood flow measurements in the main, right, and left pulmonary arteriessurrogate

Velocity-encoded cine MR imaging with oblique-gradient flow encoding is an accurate and reproducible method for measuring absolute blood flow in the pulmonary arteries.

Cite This Study

Caputo et al. (1991) conducted an observational in Healthy volunteers (n=9). Velocity-encoded cine MR imaging vs. Doppler echocardiography was evaluated on Measurement of oblique-angle flow velocity and volume. Velocity-encoded cine MR imaging enabled accurate and reproducible measurement of absolute blood flow in healthy subjects, correlating well with Doppler echocardiography.

synapsesocial.com/papers/6a159b6179ff98d0de4ee167 https://doi.org/10.1148/radiology.180.3.1871279

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Right and left lung perfusion: in vitro and in vivo validation with oblique-angle, velocity-encoded cine MR imaging.

Discussion

Member takes

Implication

Key Points

Study Design

Structured PICO

Cite This Study

Right and left lung perfusion: in vitro and in vivo validation with oblique-angle, velocity-encoded cine MR imaging.

Discussion

Member takes

Implication

Key Points

Study Design

Structured PICO

Cite This Study

Also Consider

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