Detection of papillary muscle infarction by late gadolinium enhancement: Incremental value of short-inversion time vs. standard imaging

Annachiara Aldrovandi, Stijn P.J. De Ridder, Oliver Strohm, Myra Cocker, Rosa Sandonato, Matthias G. Friedrich

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

AimsLate gadolinium enhancement (LGE) cardiovascular magnetic resonance (CMR) imaging can detect myocardial scar in patients with myocardial infarction. The detection of papillary muscle infarction (PMI) may be difficult due to the bright blood signal. The aim of our study was to evaluate the incremental value of LGE CMR imaging using an inversion recovery (IR)-GRE with a short-inversion time (TI) over standard LGE imaging in identifying PMI.Methods and resultsFifty-six patients with myocardial infarction were studied using a standard IR-GRE LGE sequence with an adjusted TI to null the signal intensity of normal myocardium and with a 3D IR-GRE with a short TI (<180 ms). Signal-to-noise and contrast-to-noise ratios (CNR) and the frequency of PMI were determined. Image quality and infarction sharpness were evaluated. The short-TI LGE sequence detected a higher number of PMI compared with standard LGE sequence (19/54 vs. 15/54) with an increased sharpness of PMI (84.2 vs. 53.3%). The CNR was higher between infarcted myocardium and blood (77.9 ± 60 vs. 19.3 ± 16, P < 0.001) and between PMI and blood (69.4 ± 51 vs. 39.4 ± 26, respectively, P = 0.0157).ConclusionsOur data indicate that in patients with myocardial infarction, LGE CMR imaging using a short TI may be more sensitive than standard LGE imaging for the detection of PMI.

Original languageEnglish (US)
Pages (from-to)495-499
Number of pages5
JournalEuropean Heart Journal Cardiovascular Imaging
Volume14
Issue number5
DOIs
StatePublished - May 2013

Keywords

  • Late gadolinium-enhanced cardiovascular magnetic resonance imaging
  • Myocardial infarction
  • Papillary muscle infarction

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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