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[MRI-guided pediatric interventions].

T Schulz1, J Bennek, J P Schneider

  • 1Klinik und Poliklinik für Diagnostische Radiologie der Universität Leipzig, Leipzig. schuth@medizin.uni-leipzig

Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin
|December 9, 2003
PubMed
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MRI-guided interventions in children offer radiation-free imaging and excellent soft-tissue contrast. While promising, high costs and limited open MRI availability hinder widespread adoption of these pediatric procedures.

Area of Science:

  • Pediatric Interventional Radiology
  • Medical Imaging
  • Oncology

Background:

  • Diagnostic and therapeutic procedures utilizing Magnetic Resonance (MR) imaging during pediatric interventions are limited.
  • This study explores the use of MR imaging in pediatric interventions, focusing on indications, complications, and the pros and cons of this approach.

Purpose of the Study:

  • To describe the indications, complications, advantages, and disadvantages of MR image-guided interventions in pediatric patients.
  • To present findings from a case study conducted in an open MRI scanner.

Main Methods:

  • 14 procedures were performed on 13 pediatric patients (aged 1-16 years) with bone, soft tissue, and brain lesions using an open MRI scanner.
  • Procedures included biopsies, tumor resections, joint mouse removal, and tumor markings.

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  • Image acquisition utilized various sequences (SE, 3D, GE, FSE) pre- and post-contrast, with interactive navigation via a multiplanar T1w GE-sequence.

    • Main Results:

    • All 14 procedures were completed without complications.
    • Eight biopsies, two tumor resections, one joint mouse removal, and three tumor markings were performed.
    • Five biopsies yielded adequate samples for histological diagnosis; two required repeat biopsies due to fragmentation.

    Conclusions:

    • MR image-guided pediatric interventions offer advantages of non-ionizing radiation and superior soft-tissue contrast.
    • Challenges include high costs, longer procedure times, and limited availability of open MRI systems.
    • Advancements in MR-compatible instruments are expected to improve efficiency and sample quality, positioning MRI-guided interventions as a promising developmental method.