MR imaging of hepatic metastases caused by neuroendocrine tumors: comparing four techniques

Détails

ID Serval
serval:BIB_5C884DF8FD2F
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
MR imaging of hepatic metastases caused by neuroendocrine tumors: comparing four techniques
Périodique
AJR Am J Roentgenol
Auteur(s)
Dromain C., de Baere T., Baudin E., Galline J., Ducreux M., Boige V., Duvillard P., Laplanche A., Caillet H., Lasser P., Schlumberger M., Sigal R.
ISSN-L
0361-803X (Print)0361-803X (Linking)
Statut éditorial
Publié
Date de publication
2003
Peer-reviewed
Oui
Volume
180
Numéro
1
Pages
121-8
Langue
anglais
Notes
Dromain, Clarissede Baere, ThierryBaudin, EricGalline, JoelDucreux, MichelBoige, ValerieDuvillard, PierreLaplanche, AgnesCaillet, HubertLasser, PhilippeSchlumberger, MartinSigal, RobertengComparative Study2002/12/20 04:00AJR Am J Roentgenol. 2003 Jan;180(1):121-8.
Résumé
OBJECTIVE: The aim of our prospective study was to assess the MR imaging characteristics of hepatic metastases of neuroendocrine tumors and to determine the optimal MR sequence for their detection. SUBJECTS AND METHODS: Thirty-seven consecutive patients with liver metastases from neuroendocrine tumors underwent 1.5-T MR imaging of the liver comprising T2-weighted fast spin-echo with respiratory monitoring, breath-hold T2-weighted single-shot fast spin-echo, and T1-weighted gradient-recalled echo sequences before and after the injection of gadoterate dimeglumine. Images were reviewed independently by three observers for the number, location, and pattern of signal and enhancement of metastases. RESULTS: A total of 359 metastases were detected, 279 on T2-weighed fast spin-echo, 231 on T2-weighed single-shot fast spin-echo, 272 on unenhanced T1-weighted, 322 on hepatic arterial phase, and 228 on portal venous phase images. Hepatic arterial phase images revealed the greatest number of metastases in 70% of patients, including 35 metastases seen only on this sequence, and was significantly superior to the unenhanced T1-weighted and portal venous phase sequences (p < 0.01). The lesion-to-liver contrast was significantly greatest with T2-weighed fast spin-echo sequences. The enhancement patterns of metastases were predominantly hypervascular, hypovascular, peripheral with progressive fill-in, and delayed in, respectively, 27, four, four, and two patients. Most metastases with peripheral enhancement and progressive fill-in were heterogeneous on T2-weighted images and were without globular peripheral enhancement. CONCLUSION: Hepatic metastases of neuroendocrine tumors had a typical hypervascular pattern in 73% of patients. Hepatic arterial phase and fast spin-echo T2-weighed sequences are the most sensitive.
Mots-clé
Adult, Aged, Female, Humans, Image Enhancement, Liver Neoplasms/blood supply/diagnosis/*secondary, Magnetic Resonance Imaging/*methods, Male, Middle Aged, Neuroectodermal Tumors/blood supply/diagnosis/*secondary, Prospective Studies
Création de la notice
16/09/2016 10:14
Dernière modification de la notice
20/08/2019 14:15
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