Diffusion-weighted MR neurography for the assessment of brachial plexopathy in oncological practice.
Cancer Imaging
; 15: 6, 2015 May 02.
Article
en En
| MEDLINE
| ID: mdl-25934632
ABSTRACT
BACKGROUND:
To evaluate diffusion-weighted MR neurography (DW-MRN) for visualizing the brachial plexus and for the assessment of brachial plexopathy.METHODS:
40 oncological patients with symptoms of brachial plexopathy underwent 1.5 T MRI using conventional MR sequences and unidirectional DW-MRN. The images were independently reviewed by two radiologists. Anatomic visualization of the brachial plexus was scored using a 5 point scale on conventional MR sequences and then combined with DW-MRN. A brachial plexus abnormality was also scored using a 5 point scale and inter-observer agreement determined by kappa statistics. Diagnostic accuracy for brachial plexopathy assessed by conventional MRI alone versus conventional MRI combined with DW-MRN was compared by ROC analysis using reference standards.RESULTS:
DW-MRN significantly improved visualization of the brachial plexus compared with conventional MRI alone (P<0.001). When assessing brachial plexopathy, inter-observer agreement was moderate for conventional MRI (kappa=0.48) but good for conventional MRI with DW-MRN (kappa=0.62). DW-MRN combined with conventional MRI significantly improved diagnostic accuracy in one observer (P<0.05) but was similar in the other observer.CONCLUSION:
DW-MRN improved visualization of the brachial plexus. Combining DW-MRN with conventional MRI can improve inter-observer agreement and detection of brachial plexopathy in symptomatic oncological patients.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Plexo Braquial
/
Neoplasias de la Mama
/
Neuropatías del Plexo Braquial
/
Imagen de Difusión por Resonancia Magnética
/
Neoplasias Pulmonares
Tipo de estudio:
Guideline
Límite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Cancer Imaging
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
/
NEOPLASIAS
Año:
2015
Tipo del documento:
Article
País de afiliación:
Reino Unido