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July 10, 2026DiagnosticsOpen Access

Assessment of Myocardial Iron Overload and Strain Abnormalities in Pediatric β-Thalassemia Using Multiparametric CMR

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Key result

Pediatric myocardial iron overload is linked to reduced global circumferential strain versus healthy controls.

  • P<0.01
  • n=88

Why the study?

Myocardial iron overload causes adverse outcomes in pediatric transfusion-dependent beta-thalassemia, prompting evaluation of AI-based CMR feature tracking and its relationship with multiparametric CMR biomarkers and LV geometry.

Does AI-assisted CMR feature tracking combined with multiparametric tissue imaging detect subclinical myocardial dysfunction in pediatric patients with β-thalassemia major?

Population

68 pediatric patients with beta-thalassemia major and 20 age-matched healthy controls

Comparison

Pediatric patients with beta-thalassemia major vs age-matched healthy controls

Design

Retrospective study

Authors

RARania AwadiNBNarjes BenameurMDMohamed Deriche

Discussion

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Overview

May support AI-CMR strain analysis in pediatric thalassemia; hypothesis-generating and requires prospective validation before adoption.

Key Points

  • The study aims to assess the relationship between AI-based CMR feature tracking and myocardial strain in pediatric patients with β-thalassemia.
  • Retrospective study involving 68 pediatric patients with β-thalassemia major and 20 healthy controls.
  • CMR protocols included T2*, T1 mapping, and feature tracking for strain analysis.
  • Correlations between strain parameters and tissue characteristics were assessed using Pearson’s correlation.
  • Patients with myocardial iron overload exhibited reduced GCS (−17.4 ± 1.6% vs. −19.3 ± 4.5%, p < 0.01).
  • GCS showed correlations with T2* (r = −0.33, p = 0.007) and T1 (r = −0.45, p < 0.001).
  • GLS correlated with LV mass/EDV ratio (r = −0.449, p < 0.001) indicating sensitivity to geometric changes.

Study Design

Type

Observational (n=88)

Structured PICO

Does AI-assisted CMR feature tracking combined with multiparametric tissue imaging detect subclinical myocardial dysfunction in pediatric patients with β-thalassemia major?

P
Population
88 pediatric participants, comprising 68 with β-thalassemia major and 20 age-matched healthy controls, evaluated for myocardial iron overload and strain abnormalities.
E
Exposure
Multiparametric cardiovascular magnetic resonance (CMR) including T2* and T1 mapping, and artificial intelligence (AI)-assisted CMR feature tracking (CMR-FT) for strain analysis.
C
Comparator
Age-matched healthy controls.
O
Outcome
Myocardial strain parameters (GCS, GLS, GRS) and their correlation with tissue characteristics (T2*, T1) and left ventricular geometry.surrogate

Main Result

Absolute Event Rate: -17.4% vs -19.3%

p-value: p=<0.01

AI-assisted CMR feature tracking combined with T1 and T2* mapping can detect early subclinical myocardial dysfunction associated with iron overload in pediatric patients with β-thalassemia.

Cite This Study

Awadi et al. (2026) conducted an observational in Pediatric β-thalassemia major (n=88). Myocardial iron overload vs. Healthy controls was evaluated on Global circumferential strain (GCS) (p=<0.01). Pediatric patients with myocardial iron overload had significantly reduced global circumferential strain compared to healthy controls (-17.4% vs. -19.3%, p<0.01).

synapsesocial.com/papers/6a508cc46eeac72a437a0aefhttps://doi.org/10.3390/diagnostics16142139
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Global and regional cardiac magnetic resonance feature tracking left ventricular strain analysis in assessing early myocardial disease in β thalassemia major patients2024 · 3 citations
  2. 2Assessment of left ventricular functions and myocardial iron load with tissue Doppler and speckle tracking echocardiography and T2* MRI in patients with β‐thalassemia major2017 · 28 citations
  3. 3T1 mapping and speckle tracking echocardiography for the assessment of early mechanical dysfunction in transfusion-dependent β-thalassemia with normal T2*2026 · 1 citations
  4. 4T2* Imaging of the Heart2014 · 29 citations
  5. 5Increased sympathovagal imbalance evaluated by heart rate variability is associated with decreased T2* MRI and left ventricular function in transfusion-dependent thalassemia patients2018 · 5 citations