摘要
目的：探讨64层螺旋CT多期相扫描对临床常见的肾上腺腺瘤、嗜铬细胞瘤及转移瘤诊断和鉴别诊断的意义。材料和方法：64例肾上腺肿瘤患者行Siemens Sensation 64层螺旋CT平扫及增强检查。分析评价肾上腺肿块的动态增强CT表现特征（各期CT值、造影剂绝对廓清率和相对廓清率）。结果：肾上腺腺瘤37例，嗜铬细胞瘤17例，转移性肿瘤10例。腺瘤平扫、动脉期及静脉期CT值均低于嗜铬细胞瘤，以动脉期明显（P<0.01）；腺瘤平扫、动脉期及延迟期CT值低于转移瘤，以延迟期明显（P<0.01）；腺瘤造影剂廓清率大于嗜铬细胞瘤和转移瘤。嗜铬细胞瘤仅动脉期CT值大于转移瘤。结论：64层螺旋CT为肾上腺的显示和肾上腺肿瘤的定位诊断提供了保证；而肾上腺肿瘤不同CT扫描时相和不同参数的特点为肾上腺肿瘤的定性诊断提供较多依据。
Abstract
Objective: To discuss the application of 64-slice dynamic contrast-enhanced CT in adrenal adenoma, pheochromocytoma and adrenal metastatic tumor. Materials and Methods: 64 patients underwent Siemens Sensation 64-slice dynamic contrast-enhanced CT. CT features were analyzed and evaluated, including CT values in each phase, contrast absolute and relative washout rates. Results: There were 37 patients with adrenal adenomas, 17 with adrenal pheochromacytomas and 10 with adrenal metastatic tumors. CT values of adenoma were lower than that of pheochromacytoma in plain, arterial and venous phases respectively and that of metastatic tumor in plain, arterial and delayed phases respectively. The contrast washout rates of adenoma were higher than either that of pheochromacytoma or metastatic tumor. The CT value of pheochromacytoma in arterial phase was higher than that of metastatic tumor. Conclusion: 64-slice CT shows no difficulty in evaluating adrenal gland and its tumors; 64-slice dynamic contrast-enhanced CT of adrenal tumors can provide more evidence for the histological diagnosis by comparing different parameters.
关键词
肾上腺肿瘤 /
体层摄影术 /
螺旋计算机
Key words
adrenal gland neoplasms /
tomography /
spiral computed
孙洪赞;于 涛;廖 伟.
64层螺旋CT多期相扫描诊断肾上腺常见肿瘤的临床研究[J]. 中国临床医学影像杂志. 2007, 18(10): 693-695
SUN Hong－zan;YU Tao;LIAO Wei.
Study of 64-slice dynamic contrast-enhanced CT in common adrenal tumors[J]. Journal of China Clinic Medical Imaging. 2007, 18(10): 693-695
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