MRI Role in Evaluation of T staging and Lymphatic metastases for Esophageal Cancer
Yingyu Lin1, Mengzhu Wang2, and Shi-Ting Feng1
1The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China, 2MR Scientific Marketing, Siemens Healthcare, Guangzhou, China
We
compared MRI with EUS in preoperative T staging and with PET/CT in preoperative
lymphatic metastases of esophageal cancer. In this study, MRI showed higher
sensitivity, specificity and accuracy in T staging, while MRI and PET/CT showed similar performance in lymph nodes evaluation.
Figure1.
MRI and EUS images of T1-T3 esophageal cancer.
T1:
A-C, T2WI BLADE(A), Enhanced
T1WI
radial
VIBE(B), and EUS(C). The tumor located
in the mucosa and submucosa and protrudes into the lumen without muscularis
propria invasion.
T2:
D-F, T2WI
BLADE(D), Enhanced
T1WI
radial
VIBE(E), and EUS(F). The tumor breaks
through the submucosa and is limited to the muscularis propria.
T3:G-I,
T2WI BLADE(G), Enhanced
T1WI
radial
VIBE(H), and EUS(I). The tumor is
confined to the adventitia.
Table
1. Comparison between preoperative MRI and postoperative pathological T staging