[磁共振断层扫描和计算机断层扫描在口腔和口咽癌肿瘤分期中的应用]

[Magnetic resonance tomography and computerized tomography in tumor staging of mouth and oropharyngeal cancer].

作者信息

Steinkamp H J, Mäurer J, Heim T, Knöbber D, Felix R

机构信息

Strahlenklinik und Poliklinik, Universitätsklinikum Rudolf Virchow, Freie Universität Berlin.

出版信息

HNO. 1993 Nov;41(11):519-25.

PMID:8282576

Abstract

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.

摘要

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。