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A multipurpose, adolescent idiopathic scoliosis-specific, short MRI protocol: A feasibility study in volunteers.
Shcherbakova, Yulia M; Lafranca, Peter P G; Foppen, Wouter; van der Velden, Tijl A; Nievelstein, Rutger A J; Castelein, Rene M; Ito, Keita; Seevinck, Peter R; Schlosser, Tom P C.
Afiliación
  • Shcherbakova YM; Department of Radiology, Image Sciences Institute, UMC Utrecht, Utrecht, Netherlands. Electronic address: Y.M.Shcherbakova@umcutrecht.nl.
  • Lafranca PPG; Department of Orthopaedic Surgery, UMC Utrecht, Utrecht, Netherlands.
  • Foppen W; Department of Radiology & Nuclear Medicine, Division Imaging & Oncology, UMC Utrecht, Utrecht, Netherlands.
  • van der Velden TA; Department of Radiology, Image Sciences Institute, UMC Utrecht, Utrecht, Netherlands; MRIguidance B.V., Utrecht, Netherlands.
  • Nievelstein RAJ; Department of Radiology & Nuclear Medicine, Division Imaging & Oncology, UMC Utrecht, Utrecht, Netherlands.
  • Castelein RM; Department of Orthopaedic Surgery, UMC Utrecht, Utrecht, Netherlands.
  • Ito K; Department of Orthopaedic Surgery, UMC Utrecht, Utrecht, Netherlands; Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands.
  • Seevinck PR; Department of Radiology, Image Sciences Institute, UMC Utrecht, Utrecht, Netherlands; MRIguidance B.V., Utrecht, Netherlands.
  • Schlosser TPC; Department of Orthopaedic Surgery, UMC Utrecht, Utrecht, Netherlands.
Eur J Radiol ; 177: 111542, 2024 Aug.
Article en En | MEDLINE | ID: mdl-38861906
ABSTRACT

INTRODUCTION:

Visualization of scoliosis typically requires ionizing radiation (radiography and CT) to visualize bony anatomy. MRI is often additionally performed to screen for neural axis abnormalities. We propose a 14-minutes radiation-free scoliosis-specific MRI protocol, which combines MRI and MRI-based synthetic CT images to visualize soft and osseous structures in one examination. We assess the ability of the protocol to visualize landmarks needed to detect 3D patho-anatomical changes, screen for neural axis abnormalities, and perform surgical planning and navigation.

METHODS:

18 adult volunteers were scanned on 1.5 T MR-scanner using 3D T2-weighted and synthetic CT sequences. A predefined checklist of relevant landmarks was used for the parameter assessment by three readers. Parameters included Cobb angles, rotation, torsion, segmental height, area and centroids of Nucleus Pulposus and Intervertebral Disc. Precision, reliability and agreement between the readers measurements were evaluated.

RESULTS:

91 % of Likert-based questions scored ≥ 4, indicating moderate to high confidence. Precision of 3D dot positioning was 1.0 mm. Precision of angle measurement was 0.6° (ICC 0.98). Precision of vertebral and IVD height measurements was 0.4 mm (ICC 0.99). Precision of area measurement for NP was 8 mm2 (ICC 0.55) and for IVD 18 mm2 (ICC 0.62) for IVD. Precision of centroid measurement for NP was 1.3 mm (ICC 0.88-0.92) and for IVD 1.1 mm (ICC 0.88-91).

CONCLUSIONS:

The proposed MRI protocol with synthetic CT reconstructions, has high precision, reliability and agreement between the readers for multiple scoliosis-specific measurements. It can be used to study scoliosis etiopathogenesis and to assess 3D spinal morphology.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Escoliosis / Imagen por Resonancia Magnética / Estudios de Factibilidad / Imagenología Tridimensional Límite: Adolescent / Adult / Female / Humans / Male Idioma: En Revista: Eur J Radiol Año: 2024 Tipo del documento: Article Pais de publicación: Irlanda
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Escoliosis / Imagen por Resonancia Magnética / Estudios de Factibilidad / Imagenología Tridimensional Límite: Adolescent / Adult / Female / Humans / Male Idioma: En Revista: Eur J Radiol Año: 2024 Tipo del documento: Article Pais de publicación: Irlanda