Shiraiwa M, Joja I, Asakawa T, Okuno K, Shibutani O, Akamatsu N, Kudo T, Hiraki Y
Department of Radiology, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama-city, Okayama 700-8558, Japan.
Abdom Imaging. 1999 Sep-Oct;24(5):514-9. doi: 10.1007/s002619900552.
To investigate the efficacy of thin-section oblique axial T2-weighted images in the assessment of parametrial invasion by cervical carcinoma.
One hundred parametria of 50 patients with cervical carcinoma were evaluated with pathologic correlation. We compared the sensitivity, specificity, and diagnostic accuracy in the assessment of parametrial invasion by cervical carcinoma between axial T2-weighted images and thin-section oblique axial T2-weighted images.
Thin-section oblique axial T2-weighted images provided accurate cross sections of the cervix with excellent detail and detected parametrial invasion more accurately than did axial T2-weighted images showing cross sections of the trunk. Although the sensitivity, specificity, and accuracy for parametrial invasion were 46.4%, 91.7%, and 79.0%, respectively, on axial T2-weighted images, the corresponding values were 67.9%, 97. 2%, and 89.0%, respectively, on thin-section oblique axial T2-weighted images. There were statistically significant differences in the sensitivity (p = 0.014), specificity (p = 0.046), and accuracy (p = 0.002) in detecting parametrial invasion between these two types of images.
Thin-section oblique axial T2-weighted images are useful for the assessment of parametrial invasion by cervical carcinoma.
探讨薄层斜轴位T2加权图像在评估宫颈癌宫旁浸润中的效能。
对50例宫颈癌患者的100个宫旁组织进行评估，并与病理结果进行对照。我们比较了轴位T2加权图像和薄层斜轴位T2加权图像在评估宫颈癌宫旁浸润方面的敏感性、特异性和诊断准确性。
薄层斜轴位T2加权图像能提供宫颈的精确横断面，细节清晰，比显示躯干横断面的轴位T2加权图像更准确地检测出宫旁浸润。虽然轴位T2加权图像对宫旁浸润的敏感性、特异性和准确性分别为46.4%、91.7%和79.0%，但薄层斜轴位T2加权图像的相应值分别为67.9%、97.2%和89.0%。这两种图像在检测宫旁浸润的敏感性（p = 0.014）、特异性（p = 0.046）和准确性（p = 0.002）方面存在统计学显著差异。
薄层斜轴位T2加权图像有助于评估宫颈癌的宫旁浸润。
