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目的:探讨3D重建后平板CT图像在肝肿瘤介入治疗中的应用价值。方法:使用西门子双平板数字X线成像系统,对66例肝肿瘤患者分别进行常规DSA、栓塞后旋转(DR)采集后,进行图像重建,对两种方法在显示病灶数目和肝肿瘤栓塞后的平板CT图像与CT图像进行对比研究。结果:66例肝肿瘤患者中,肝癌61例,肝血管瘤5例。13例常规CT图像没有显示小的病灶,常规DSA和栓塞后的平板CT图像上显示有病灶。3D图像上还发现4例肝脏局部异常灌注。结论:肝肿瘤介入治疗中,常规DSA结合平板CT图像在显示肝亚段动脉分支和明确肿瘤供血动脉方面具有明显优势,能提高微小肝肿瘤病灶及异常病变的检出率,它对肝肿瘤病变的诊断和治疗具有重要的临床应用价值。
Objective: To investigate the value of 3D CT planar imaging in the interventional treatment of liver tumors. Methods: Sixty-four patients with liver cancer were routinely scanned with DSA and DR after the two-plate digital X-ray imaging system. The images were reconstructed using the two-plate digital X-ray imaging system. Flat CT images and CT images were compared. Results: Among the 66 patients with liver cancer, 61 were liver cancer and 5 were hepatic hemangiomas. Thirteen conventional CT images did not show small lesions, and conventional DSA and thromboembolic CT images showed lesions. Four cases of abnormal liver perfusion were also found in 3D images. CONCLUSION: Conventional DSA combined with flat-plate CT images have obvious advantages in displaying hepatic sub-arterial branches and definite tumor feeding arteries in interventional therapy of liver tumors, which can improve the detection rate of lesions and abnormal lesions of small liver tumors. The diagnosis and treatment have important clinical value.