What is the clinical evidence from this study?

Study design: Observational. Population: Healthy (n=13). Intervention: 4D phase-contrast MRI. Primary outcome: Ventricular wall velocities and intracavity blood flow (p=0.002).

What does this research mean for the field?

Four-dimensional phase-contrast MRI at 3T allows simultaneous quantification of left ventricular wall motion and intracavitary blood flow, demonstrating that specific myocardial velocity components are significantly higher than radial and circumferential components. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

February 27, 2016Clinical Physiology and Functional Imaging

4D left ventricular resultant wall motion and blood flow assessed by phase‐shift velocity mapping at high‐field 3T MRI

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Key result

4D phase-contrast MRI reveals specific ventricular velocities exceed radial and circumferential components.

P=0.002
n=13

Population

13 healthy subjects

Design

Cross-sectional

Authors

SSStig F SamnøyHaukeland University Hospital JCJ. A. A. E. CuypersUniversity of Bergen GGGottfried GreveUniversity of Bergen

Discussion

Member takes

Implication

Supports feasibility of 4D PC-MRI for simultaneous LV wall motion and flow assessment; leaves open clinical utility pending prospective validation.

Study Design

Type

Observational (n=13)

Structured PICO

Population

13 healthy subjects evaluated using 4D phase-contrast MRI for simultaneous quantification of left ventricular wall motion and blood flow.

Exposure

Four-dimensional (4D) phase-contrast magnetic resonance imaging (MRI) using a three-directional retrospective cardiac triggered phase-shift velocity mapping technique at 3T

Outcome

Quantification and visualization of left ventricular wall velocities (radial, circumferential, and longitudinal directions) and intracavity blood flowsurrogate

Main Result

p-value: p=0.002

4D phase-contrast MRI at 3T provides a feasible method for simultaneous quantification and visualization of left ventricular wall motion and intracavity blood flow.

Cite This Study

Samnøy et al. (2016) conducted an observational in Healthy (n=13). 4D phase-contrast MRI was evaluated on Ventricular wall velocities and intracavity blood flow (p=0.002). 4D phase-contrast MRI velocity mapping demonstrated that certain velocity components were significantly higher than the radial and circumferential components (P=0.002).

synapsesocial.com/papers/6aa669f36cd58dd9e9f4e12b https://doi.org/10.1111/cpf.12345

Topics

Cardiac MRI

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Implication

Supports feasibility of 4D PC-MRI for simultaneous LV wall motion and flow assessment; leaves open clinical utility pending prospective validation.

4D left ventricular resultant wall motion and blood flow assessed by phase‐shift velocity mapping at high‐field 3T MRI

Discussion

Member takes

Implication

Study Design

Structured PICO

Main Result

Cite This Study

Topics

4D left ventricular resultant wall motion and blood flow assessed by phase‐shift velocity mapping at high‐field 3T MRI

Discussion

Member takes

Implication

Study Design

Structured PICO

Main Result

Cite This Study

Also Consider

Topics

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