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目的：探讨脑挫伤患者甲状腺素放免测定的临床意义。方法：用放射免疫法检测９４例脑挫伤患者血清三碘甲腺原氨酸（Ｔ３）、甲状腺素（Ｔ４）和促甲状腺素（ＴＳＨ）。结果：脑损伤患者血清Ｔ３、Ｔ４和ＴＳＨ较对照组明显降低（Ｐ＜０．０１）；Ｔ３下降的幅度较Ｔ４大。结论：测定脑挫裂伤患者甲状腺素，对判断脑损伤的严重程度及预后，有着一定意义。
Objective: To investigate the clinical significance of thyroxine radioimmunoassay in patients with brain contusion. Methods: Serum triiodothyronine (T3), thyroxine (T4) and thyrotropin (TSH) in 94 patients with cerebral contusion were detected by radioimmunoassay. Results: Serum T3, T4 and TSH in patients with brain injury were significantly lower than those in the control group (P <0.01); T3 decreased more than T4. Conclusion: The determination of thyroxine in patients with cerebral contusion and laceration has certain significance in judging the severity and prognosis of brain injury.