Freitag J, Müller G W, Buhtz C, Freitag G, Buhtz P
Z Urol Nephrol. 1985 Feb;78(2):87-96.
Findings of computer tomographic and lymphographic examinations of 74 patients were evaluated concerning their evidence in the pretherapeutic staging compared with the histological results of lymphonodectomy. The security of the computer tomography was about 82.4%, the specifity about 95.12%, the sensitivity about 66.66%. Lymphographically, a security of 85.14%, a specifity of 95.12% and a sensitivity of 66.66% was achieved. The combination of the methods achieved a security of 91.7%, a specifity of 100% and a sensitivity of 71.72% was achieved. Metastases of lymphatic nodes less than 0.5 cm diameter were not recognized by means of the two methods. In 2 cases no metastases, which were not covered by means of computer tomography, could not be recognized lymphographically in slightly enlarged lymphatic nodes. In contrast to this in 11 out of 74 patients (14.8%) in the computer tomography an enlargement of the findings was the result in comparison to lymphography. Since none of the two methods is absolutely reliable for the proof or the exclusion of smaller metastases, in a secure evidence of the computer tomography before a lymphonodectomy the lymphography can be omitted.
对74例患者的计算机断层扫描和淋巴造影检查结果进行了评估，将其在治疗前分期中的证据与淋巴结切除术的组织学结果进行比较。计算机断层扫描的安全性约为82.4%，特异性约为95.12%，敏感性约为66.66%。淋巴造影方面，安全性为85.14%，特异性为95.12%，敏感性为66.66%。两种方法联合使用时，安全性达到91.7%，特异性为100%，敏感性为71.72%。两种方法均未识别出直径小于0.5 cm的淋巴结转移。有2例患者，计算机断层扫描未发现的转移灶，在轻度肿大的淋巴结中也未被淋巴造影识别出来。与此相反，在74例患者中有11例（14.8%），计算机断层扫描显示的结果与淋巴造影相比有增大。由于两种方法都不能绝对可靠地证明或排除较小的转移灶，因此在淋巴结切除术前行计算机断层扫描明确诊断后，可省略淋巴造影检查。
