Boston University School of Medicine, Boston, MA 02118, USA.
AJR Am J Roentgenol. 2011 Aug;197(2):W256-9. doi: 10.2214/AJR.10.6331.
Metastasis is the most common (95%) of liver lesions. Early diagnosis and staging are the keys to treatment planning and prognosis. There is a consistent benefit to the use of PET/CT for detecting hepatic, local, and distant metastases from a variety of primary malignancies, which can contribute to staging and ultimately helps to establish the best course of treatment and to determine prognosis.
For colorectal cancer, FDG PET and FDG PET/CT are particularly effective for identification of additional hepatic and extrahepatic metastases, frequently upstaging the tumor stage and affecting management. In addition, PET/CT is very useful in local ablative and systemic therapy assessment and surveillance for liver metastases.
转移是最常见的（95%）肝脏病变。早期诊断和分期是治疗计划和预后的关键。对于各种原发性恶性肿瘤的肝、局部和远处转移的检测，PET/CT 的使用具有一致的益处，这有助于分期，最终有助于确定最佳治疗方案并确定预后。
对于结直肠癌，FDG PET 和 FDG PET/CT 对于识别额外的肝内和肝外转移特别有效，经常对肿瘤分期进行升级并影响治疗管理。此外，PET/CT 在局部消融和系统治疗评估以及肝转移的监测中非常有用。
