组织谐波成像技术在诊断肾上腺肿瘤的临床应用

Clinical Application of Tissue Harmonic Imaging in the Diagnosis of Adrenal Tumors

目的 探讨组织谐波成像技术 (tissue harmonic imaging,THI)在肾上腺占位性病变诊断中的应用价值 ,旨在提高肾上腺肿瘤的超声诊断率。方法 应用常规二维超声 (two- dimensional ultrasound,2 D)与 THI对肾上腺肿瘤进行对比观察。 6 7例经手术病理证实的肾上腺肿瘤 ,按肿块大小分为直径≤ 3cm (组 1)及 >3cm(组 2 )两组。对比分析肿瘤的 2 D和 THI的诊断符合率 ,并将 2 D及 THI的肿瘤图像按显示清晰与不清晰进行分级比较。结果 组 1,2 D及 THI诊断符合率分别为 5 2 .2 %及 75 .9% ,二者比较差异有显著意义 (P<0 .0 5 )。组2 ,2 D及 THI诊断符合率均为 92 .1% ,二者比较无差异 (P>0 .0 5 )。两组肿块 2 D及 THI图像显示清晰率分别为 34.5 %和 82 .6 %及 81.6 %和 92 .1% ,二者比较差异均有显著意义 (P<0 .0 5 )。结论 本研究表明 ,THI可提高肾上腺肿瘤的图像清晰度及对比度 ,尤其是改善小肿块的图像质量 ,从而提高诊断率。

Objective To evaluate the significance of the tissue harmonic imaging (THI) in the diagnosis of the adrenal tumors.Methods A total of 67 cases with adrenal tumors,verified by surgery and post-operational pathology were detected with two-dimensional ultrasound (2DUS) and(THI).According to the diameter of the masses,these cases were divided into two groups:group 1,the size of tumors was≤3 cm in the diameter;and group 2,was >3 cm in the diameter.Their positive rate and clearness on 2D were studied and compared with THI.Results In group 1,the positive rate determined by 2D was 52.2% and by THI was 75.9%.There was a significant difference between them (P<0.05).In group 2,the positive rate determined by 2D and THI were both 92.1% with no difference (P>0.05).In group 1,the definition rate of tumors determined by 2D and THI was 34.5% and 82.6% respectively;in group 2,was 81.6% and 92.1% respectively.There was a significant difference (P<0.05).Conclusions The present study showed that THI can significantly increase the clearness and contrast of the adrenal tumors,especially can markedly improve the image quality of small tumors,and therefore,THI may increase the diagnostic accuracy of adrenal tumors.