Quantitative biomarkers allow the diagnosis of head and neck paraganglioma on multiparametric MRI.
Eur J Radiol
; 143: 109911, 2021 Oct.
Article
em En
| MEDLINE
| ID: mdl-34508941
ABSTRACT
PURPOSE:
The aim of this study is to identify quantitative MR biomarkers in head and neck paragangliomas.METHODS:
The study was approved by an institutional review board. A retrospective review of patients with head and neck paragangliomas (HNPGL) evaluated by time-resolved MRA sequences between 2009 and 2019 was performed. A control group investigated during the same period was analyzed, including nerve sheath tumors and metastatic lymph nodes from squamous cell carcinomas or undifferentiated nasopharyngeal cancer (UCNT). A gold standard was obtained for all cases. Semi-quantitative parameters of enhancement were extracted from time-intensity curves on time-resolved MRA sequences and diffusion weighted imaging/DWI was assessed for each lesion.RESULTS:
Sixty head and neck paragangliomas (HNPGLs) were included from 50 patients. The control group consisted of 30 parapharyngeal space lesions (27 patients), which included nerve sheath tumors (n = 12) and metastatic lymph nodes (n = 18) from squamous cell carcinomas or UCNT. PGLs showed a shorter time-to-peak value compared to other groups, measured at 25.0 +/- 29 sec. The wash-in and wash-out ratios were also significantly higher for PGLs, respectively measured at 5.34 ± 2.99 (p < 0,001) and 1.24 ± 0.80 (p < 0.001). On DWI sequences, the mean ADC value for PGLs (1.17 ± 0.19 10^-3 mm2/s) was significantly different than the other tumor groups (p < 0.001). HNPGLs were clearly distinguishable from other tumors on classification with regression tree based on TTP and ADC values. These distinct group features were also consistent on principal component analysis.CONCLUSION:
Our study identifies a multiparametric signature for disease subtyping, providing a strong impetus for switching from qualitative to quantitative analysis of deep soft-tissue tumors of the neck.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Paraganglioma
/
Neoplasias Nasofaríngeas
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Imageamento por Ressonância Magnética Multiparamétrica
/
Neoplasias de Cabeça e Pescoço
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
/
Qualitative_research
Limite:
Humans
Idioma:
En
Revista:
Eur J Radiol
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
França