Loviagin E V, Kuznetsov K O, Noskov A A, Mitrofanov N A
Vopr Onkol. 1992;38(5):577-85.
Results of standard X-ray tomography, computed tomography and ultrasonic tomography (UT) used for detecting mediastinal metastases from lung cancer were compared in 50 patients who were later operated on. UT sensitivity in the diagnosis of paravasal lymph node involvement proved superior to that of X-ray tomography and only slightly yielded to that of computed tomography. As regards bifurcation lymph node assessment, results of the radiation imaging techniques were similar to those obtained by surgery. Ultrasonographic signs of tumor spreading to the mediastinum were observed in cases of stage IIIa-IIIb tumors only. UT assured detection of metastases in normal-sized lymph nodes of the upper mediastinum. Combined application of standard X-ray and ultrasonic tomography of the mediastinum assured better staging of tumor roughly in half the patients. Absence of X-ray signs of mediastinal lymph node enlargement is considered a direct indication for UT.
对50例随后接受手术的患者比较了用于检测肺癌纵隔转移的标准X线断层扫描、计算机断层扫描和超声断层扫描（UT）的结果。UT诊断旁血管淋巴结受累的敏感性优于X线断层扫描，仅略逊于计算机断层扫描。关于分叉淋巴结评估，放射成像技术的结果与手术结果相似。仅在Ⅲa-Ⅲb期肿瘤病例中观察到肿瘤扩散至纵隔的超声征象。UT能够检测上纵隔正常大小淋巴结中的转移灶。纵隔标准X线和超声断层扫描联合应用可使约半数患者的肿瘤分期更准确。纵隔淋巴结增大无X线征象被视为UT的直接指征。
