Crecco M, Vidiri A, Vigili M G, Saracca E, Palma O, Marzetti A, Squillaci S
Divisione di Otorinolaringoiatria e Chirurgia Cervico-Facciale, Istituto Regina Elena, Roma.
Acta Otorhinolaryngol Ital. 1994 Sep-Oct;14(5):543-51.
The purpose of this study was to define MR accuracy in the evaluation of T Stage of tumors in the tonsillar region. Twenty-two patients with a squamous cell carcinoma of the tonsillar region were studied utilizing a superconductive scanner operating at 1.5 T. The study was performed with SE T1 and T2 images before contrast and short SE T1 after Gd-DPTA infusion. MR results were correlated with pathological data on T Stage (TNM classification) and on the relationships between tumors and surrounding structures. A positive correlation between MR and pathological data was obtained in 19/22 cases, with an MR accuracy of 86%. MR did not show the presence of 2 superficial lesions (MR T0, pathological T1), while one lesion was classified T2 with MR, instead of pathology T1. The accuracy of MR was 95% in the evaluation of the relationships between tumors and the base of the tongue and 100% for body of the tongue, retromolar trigone, valleculae, epiglottis, pre-epiglottis, parapharyngeal and masticator space. MR showed high accuracy in the evaluation of T Stage, above all utilizing Gd-DPTA infusion, with short SE T1 sequences. MR did not show the superficial lesions, but in these cases a deep extension of the disease was excluded.
本研究的目的是确定磁共振成像（MR）在评估扁桃体区域肿瘤T分期方面的准确性。利用一台1.5T的超导扫描仪对22例扁桃体区域鳞状细胞癌患者进行了研究。研究在注射钆喷酸葡胺（Gd-DPTA）前采用自旋回波（SE）T1和T2序列成像，注射后采用短SE T1序列成像。将MR结果与T分期（TNM分类）的病理数据以及肿瘤与周围结构的关系进行了对比。22例中有19例MR与病理数据呈正相关，MR准确性为86%。MR未显示2处表浅病变（MR为T0，病理为T1），而1处病变MR分类为T2，而病理为T1。在评估肿瘤与舌根的关系方面，MR的准确性为95%，对舌体、磨牙后三角、会厌谷、会厌、会厌前间隙、咽旁间隙和咀嚼肌间隙的评估准确性为100%。MR在评估T分期方面显示出较高的准确性，尤其是在使用Gd-DPTA注射和短SE T1序列时。MR未显示表浅病变，但在这些病例中排除了疾病的深部扩展。
