The Blood Oxygenation T2* Values of Resectable Esophageal Squamous Cell Carcinomas as Measured by 3T Magnetic Resonance Imaging: Association with Tumor Stage

作者：Tang, Yu-lian; Zhang, Xiao-ming; Yang, Zhi-gang; Huang, Yu-cheng; Chen, Tian-wu^*; Chen, Yan-li; Chen, Fan; Zeng, Nan-lin; Li, Rui; Hu, Jiani

来源：Korean Journal of Radiology, 2017, 18(4): 674-681.

DOI：10.3348/kjr.2017.18.4.674

• Esophagus
• Neoplasm
• Carcinoma
• Squamous cell
• Magnetic resonance
• Staging

Objective: To explore the association between the blood oxygenation T-2* values of resectable esophageal squamous cell carcinomas (ESCCs) and tumor stages. @@@ Materials and Methods: This study included 48 ESCC patients and 20 healthy participants who had undergone esophageal T-2*-weighted imaging to obtain T-2* values of the tumors and normal esophagi. ESCC patients underwent surgical resections less than one week after imaging. Statistical analyses were performed to identify the association between T-2* values of ESCCs and tumor stages. @@@ Results: One-way ANOVA and Student-Newman-Keuls tests revealed that the T-2* value could differentiate stage T1 ESCCs (17.7 +/- 3.3 ms) from stage T2 and T3 tumors (24.6 +/- 2.7 ms and 27.8 +/- 5.6 ms, respectively; all p(s) < 0.001). Receiver operating curve (ROC) analysis showed the suitable cutoff T-2* value of 21.3 ms for either differentiation. The former statistical tests demonstrated that the T-2* value could not differentiate between stages T2 and T3 (24.6 +/- 2.7 ms vs. 27.8 +/- 5.6 ms, respectively, p > 0.05) or between N stages (N1 vs. N2 vs. N3: 24.7 +/- 6.9 ms vs. 25.4 +/- 4.5 ms vs. 26.8 +/- 3.9 ms, respectively; all ps > 0.05). The former tests illustrated that the T-2* value could differentiate anatomic stages I and II (18.8 +/- 4.8 ms and 26.9 +/- 5.9 ms, respectively) or stages I and III (27.3 +/- 3.6 ms). ROC analysis depicted the same cutoff T2* value of 21.3 ms for either differentiation. In addition, the Student's t test revealed that the T-2* value could determine grouped T stages (T0 vs. T1-3: 17.0 +/- 2.9 ms vs. 25.2 +/- 6.2 ms; T0-1 vs. T2-3: 17.3 +/- 3.0 ms vs. 27.1 +/- 5.3 ms; and T0-2 vs. T3: 18.8 +/- 4.2 ms vs. 27.8 +/- 5.6 ms, all ps < 0.001). ROC analysis indicated that the T-2* value could detect ESCCs (cutoff, 20 ms), and discriminate between stages T0-1 and T2-3 (cutoff, 21.3 ms) and between T0-2 and T3 (cutoff, 20.4 ms). @@@ Conclusion: The T-2* value can be an additional quantitative indicator for detecting ESCC except for stage T1 cancer, and can preoperatively discriminate between some T stages and between anatomic stages of this tumor.

• 出版日期2017-7
• 单位四川大学; 川北医学院