锥形束计算机断层扫描在肝癌介入诊疗中的应用进展

Progress in the application of CBCT in the interventional diagnosis and treatment of liver cancer

锥形光束计算机断层扫描(cone-beam computed tomography,CBCT)是一种新颖的医学成像技术,可利用锥形X射线束在围绕患者旋转过程中获得高分辨率、解剖结果详尽的三维图像,突破了传统介入放射学诊疗中使用的二维成像技术。CBCT不但可以检测出CT、磁共振成像未能检测到的不典型小肝癌,在术中寻找肿瘤供血动脉并进行导航,还能在术后即刻通过肝实质灌注来预测临床效果;另外,CBCT引导下的消融与其他影像学相比在准确性、实时性、减少辐射剂量方面也逐渐显示出独特的优势,这些出色的能力,在肝癌精准介入诊疗中的作用愈显重要。文章旨在综述CBCT目前在肝癌介入领域的应用进展和临床价值。

Cone-beam computed tomography(CBCT)represents an innovative medical imaging modality capable of capturing high-resolution,anatomically precise three-dimensional images.This technology utilizes a cone-shaped X-ray beam that rotates around the patient,marking a significant advancement from the conventional two-dimensional imaging techniques employed in traditional interventional radiology.CBCT can not only detect small atypical lesions that cannot be detected by CT and MRI,but also search for tumour blood supply arteries and navigate them intraoperatively,and predict the clinical outcome by parenchymal blood volume(PBV)in the immediate postoperative period;in addition,CBCT-guided ablation has gradually shown unique advantages in accuracy,real-time,and reduction of radiation dose when compared to other imaging,which are excellent abilities that play an important role in the precise interventional diagnosis and treatment of liver cancer.The purpose of this article is to review the current progress and clinical value of CBCT in the field of liver cancer intervention.