What question did this study set out to answer?

The study aims to evaluate the diagnostic performance and image quality of the STIR technique for detecting myocardial edema compared to late gadolinium enhancement.

January 1, 2012Journal of Cardiovascular Magnetic ResonanceOpen Access

Cardiovascular magnetic resonance of myocardial edema using a short inversion time inversion recovery (STIR) black-blood technique: Diagnostic accuracy of visual and semi-quantitative assessment

View Full Paper

Ask AI

Bookmark

Why the study?

Does STIR cardiovascular magnetic resonance accurately detect myocardial edema and differentiate acute from chronic myocardial infarction compared to late gadolinium enhancement in patients with acute MI?

Population

46 consecutive patients with acute first myocardial infarction, mean age 57, 83% male, from a single center…

Comparison

Cardiovascular magnetic resonance using a short… vs Late gadolinium enhancement used as a reference…

Design

Cohort, Image analysis performed by one observer blinded to infarct age and…

Follow-up

6 months (196 ± 39 days)

Authors

DHDarach O h-IcíGalway Clinic JRJohn P. RidgwaySt Bartholomew's Hospital TKTitus KüehneCardiac Imaging

Discussion

Member takes

Implication

May aid acute MI edema detection on CMR; leaves open prospective validation of clinical impact.

Key Points

The study aims to evaluate the diagnostic performance and image quality of the STIR technique for detecting myocardial edema compared to late gadolinium enhancement.
Forty-six patients with acute myocardial infarction underwent cardiovascular magnetic resonance (CMR) including STIR and late gadolinium enhancement (LGE).
Images were evaluated for quality, presence, and extent of myocardial hyper-intensity via visual and semi-quantitative analysis.
Thirty patients had a follow-up CMR approximately six months later.
STIR images were rated diagnostic in 99.5% of cases.
For visual assessment, STIR demonstrated 95% sensitivity and 78% specificity for detecting infarcted segments; semi-quantitative assessment showed 99% sensitivity and 83% specificity.
The extent of hyper-intense areas on acute STIR images was 85% larger than LGE images, indicating better identification of myocardial regions.

Structured PICO

Population

46 consecutive patients with acute first myocardial infarction (93% STEMI), mean age 57, 83% male, from a single center in the UK. Exclusion criteria: clinical instability, contraindications to CMR or gadolinium.

Intervention

Cardiovascular magnetic resonance (CMR) using a short inversion time inversion recovery (STIR) black-blood technique (TI 180 ms) for the assessment of myocardial edema.

Comparator

Late gadolinium enhancement (LGE) used as a reference standard for localization and extent of myocardial necrosis/scar.

Outcome

Diagnostic accuracy (sensitivity and specificity) of STIR to detect infarcted segments and differentiate acute from chronic MI, using visual and semi-quantitative assessment.surrogate

STIR imaging with appropriate pulse sequence settings is highly accurate for detecting acute myocardial infarction and distinguishing it from chronic MI.

Limitations

Most patients suffered from ST-elevation MI (severe lesions), so results might differ in less severe cases
STIR does not allow for absolute quantification of signal intensity

Cite This Study

h-Icí et al. (2012) studied this question.

synapsesocial.com/papers/6a6f87d5f44fa9f079dcfb5a https://doi.org/10.1186/1532-429x-14-22

Topics

Cardiac MRI Cardiomyopathy

View Full Paper

Ask AI

Bookmark

Cardiovascular magnetic resonance of myocardial edema using a short inversion time inversion recovery (STIR) black-blood technique: Diagnostic accuracy of visual and semi-quantitative assessment

Discussion

Member takes

Implication

Key Points

Structured PICO

Limitations

Cite This Study

Topics

Cardiovascular magnetic resonance of myocardial edema using a short inversion time inversion recovery (STIR) black-blood technique: Diagnostic accuracy of visual and semi-quantitative assessment

Discussion

Member takes

Implication

Key Points

Structured PICO

Limitations

Cite This Study

Also Consider

Topics

Also Consider