3T MR imaging of postoperative recurrent middle ear cholesteatomas: value of periodically rotated overlapping parallel lines with enhanced reconstruction diffusion-weighted MR imaging.

Détails

ID Serval
serval:BIB_8CC58E24931F
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
3T MR imaging of postoperative recurrent middle ear cholesteatomas: value of periodically rotated overlapping parallel lines with enhanced reconstruction diffusion-weighted MR imaging.
Périodique
AJNR. American journal of neuroradiology
Auteur(s)
Lehmann P., Saliou G., Brochart C., Page C., Deschepper B., Vallée J.N., Deramond H.
ISSN
1936-959X (Electronic)
ISSN-L
0195-6108
Statut éditorial
Publié
Date de publication
02/2009
Volume
30
Numéro
2
Pages
423-427
Langue
anglais
Notes
Lehmann, P
Saliou, G
Brochart, C
Page, C
Deschepper, B
Vallee, J N
Deramond, H
eng
Clinical Trial
Validation Studies
2008/10/24 09:00
AJNR Am J Neuroradiol. 2009 Feb;30(2):423-7. doi: 10.3174/ajnr.A1352. Epub 2008 Oct 22.
Publication types: Clinical Trial ; Journal Article ; Validation Studies
Publication Status: ppublish
Résumé
MR diagnostic of postoperative recurrent cholesteatomas is difficult. Our purpose was to compare multishot fast spin-echo periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) diffusion-weighted MR imaging (DWI) with array spatial sensitivity encoding technique (ASSET) single-shot echo-planar DWI and late postgadolinium T1-weighted MR imaging for the detection of postoperative recurrent middle ear cholesteatomas with a 3T imaging unit.
Thirty-five patients with suggested postoperative recurrent middle ear cholesteatoma underwent 3T MR imaging with PROPELLER DWI, ASSET echo-planar DWI, and late postgadolinium T1-weighted MR imaging. Three radiologists (2 seniors, 1 fellow) analyzed unlabeled images for visualization of recurrence. Interobserver and intraobserver agreement was assessed by using the Cohen kappa statistic test. Sensitivity, specificity, and predictive value were assessed for the 3 observers.
Nineteen recurrent cholesteatomas were diagnosed. PROPELLER interobserver agreement was very good (1, 0.89, 0.89) among the 3 observers. Intraobserver agreement between PROPELLER and T1-weighted imaging was very good to moderate (0.88, 0.57, 0.58). PROPELLER DWI provided less interobserver variability than other sequences, and the best sensitivity, specificity, and predictive value.
On a 3T imaging unit, multishot fast spin-echo PROPELLER DWI allows an easier detection of postoperative recurrent middle ear cholesteatoma than T1-weighted imaging by reducing artifacts and by its better contrast. DWI with PROPELLER is diagnostically robust and accurate.

Mots-clé
Adolescent, Adult, Aged, Aged, 80 and over, Child, Cholesteatoma, Middle Ear/pathology, Cholesteatoma, Middle Ear/surgery, Diffusion Magnetic Resonance Imaging/methods, Diffusion Magnetic Resonance Imaging/standards, Diffusion Magnetic Resonance Imaging/statistics & numerical data, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Observer Variation, Postoperative Complications/pathology, Recurrence, Reproducibility of Results, Sensitivity and Specificity, Young Adult
Pubmed
Open Access
Oui
Création de la notice
20/01/2017 16:30
Dernière modification de la notice
08/05/2019 21:46
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