Steinkamp H J, Mäurer J, Heim T, Knöbber D, Felix R
Strahlenklinik und Poliklinik, Universitätsklinikum Rudolf Virchow, Freie Universität Berlin.
HNO. 1993 Nov;41(11):519-25.
30 patients with malignant tumours of the cavum oris and oropharynx were examined by MRI and CT to compare their accuracy for T-staging. There was histological information in all cases. Histological studies showed an accuracy in T-staging of 81% for MRI and 77% for CT. Differentiation between stages T2/T3 and T3/T4 is possible in 80% by CT and 84% by MRI. Tumours of the cavum oris and oropharynx of T1-stage are possible only in 1 of 3 cases. The use of T2-weighted sequences allows the best frequence of tumour representation in 89%. CT shows an earlier bone involvement than MRI. In addition, the ability to produce coronal and sagittal images by MRI makes it superior to CT in judging tumour extension.
对30例口腔和口咽恶性肿瘤患者进行了MRI和CT检查，以比较它们在T分期方面的准确性。所有病例均有组织学信息。组织学研究显示，MRI在T分期方面的准确率为81%，CT为77%。CT对T2/T3期和T3/T4期的区分准确率为80%，MRI为84%。T1期的口腔和口咽肿瘤在3例中仅1例可见。使用T2加权序列时，肿瘤显示的最佳频率为89%。CT显示骨受累比MRI更早。此外，MRI能够生成冠状位和矢状位图像，这使其在判断肿瘤范围方面优于CT。
