MR-Guided Percutaneous Intradiscal Thermotherapy (MRgPIT): Evaluation of a New Technique for the Treatment of Degenerative Disc Disease in Cadaveric Lumbar Spine.
Artefacts
Back pain
Interventional MRI
Intervertebral disc
Laser
Journal
Cardiovascular and interventional radiology
ISSN: 1432-086X
Titre abrégé: Cardiovasc Intervent Radiol
Pays: United States
ID NLM: 8003538
Informations de publication
Date de publication:
Mar 2020
Mar 2020
Historique:
received:
14
06
2019
accepted:
19
11
2019
pubmed:
28
11
2019
medline:
6
10
2020
entrez:
28
11
2019
Statut:
ppublish
Résumé
Evaluation of MR feasibility and real-time control of an innovative thermoablative applicator for intradiscal thermotherapy and histological analysis of laser annuloplasty in human ex vivo intervertebral discs. We evaluated a new MR-compatible applicator system for MR-guided percutaneous intradiscal thermotherapy (MRgPIT) in an open 1.0-T MRI-system. Needle artefacts and contrast-to-noise ratios (CNR) of six interactive sequences (PD-, T1-, T2w TSE, T1-, T2w GRE, bSSFP) with varying echo-times (TE) and needle orientations to the main magnetic field (B In vitro, we found optimal needle artefacts of 1.5-5 mm for the PDw TSE sequence in all angles of the applicator system to B Real-time MR-guided positioning of the MRgPIT-applicator in cadaveric intervertebral disc is feasible and precise using fast TSE sequence designs. Laser-induced denaturation of collagen in the dorsal annulus fibrosus proved to be accurate.
Identifiants
pubmed: 31773189
doi: 10.1007/s00270-019-02382-8
pii: 10.1007/s00270-019-02382-8
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM