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目的:分析16排螺旋CT增强扫描对早期肝癌的各期增强图像特点,提高早期肝癌的检出率。方法:选取32例早期肝癌患者,术前行16排螺旋CT多期增强扫描检查,进行各期图像重建,分析他们的影像学特点。结果:早期肝癌在肝动脉期时图像表现为高密度强化,可见肿瘤血管;在门脉期和平衡期时图像表现为低密度无强化。其癌变组织的直径均<3cm经病理证实28例(87.5%),诊断准确率高。结论:16排螺旋CT多期增强扫描能够反映早期肝癌的血供特点,对诊断早期肝癌有重要的临床应用价值。
Objective: To analyze the enhanced image features of early stage liver cancer by 16-slice spiral CT and improve the detection rate of early stage liver cancer. Methods: Thirty-two patients with early-stage liver cancer were selected. Sixteen-slice spiral CT multi-phase contrast-enhanced MRI was performed preoperatively to reconstruct images and analyze their imaging features. Results: In the early stage of hepatic carcinoma, the images showed high density and visible tumor vessels during the period of hepatic artery. The image showed low density and no enhancement at the portal phase and the balance period. The diameter of its cancerous tissue were less than 3cm, pathologically confirmed in 28 cases (87.5%), diagnostic accuracy. Conclusion: The 16-slice spiral CT multi-phase enhanced scan can reflect the characteristics of blood supply of early stage liver cancer and has important clinical value in the diagnosis of early stage liver cancer.