合併正子攝影和電腦斷層在卵巢癌的應用

The Role of PET/CT for Ovarian Cancer

正子攝影／電腦斷層是常用的分子影像技術，有助於婦癌疾病的診斷、分期和復發的偵測。正子攝影／電腦斷層會利用一些參數來增加惡性病灶診斷的準確率，最常用為最大標準攝取值（SUVmax）。但最近亦增加了代謝性腫瘤體積（MTV）、總病灶葡萄糖溶解量（TLG）、腫瘤內不同成份FDG攝取（IFH）等，均為治療卵巢癌預後判定之重要因子。正子攝影／電腦斷層對全身性可能有的病灶，亦有助復發病灶的判斷。

Positron emission tomography/computed tomography (PET/CT) is the one of the most commonly used molecular imaging techniques in gynecological cancer diagnosis, staging and recurrence detection. Some parameters are used as diagnostic criteria for PET/CT to increase the accuracy of detecting malignancy. The most typical diagnostic criterion parameter is the maximim standardized uptake value (SUVmax). Recently, metabolic tumor volume (MTV), total lesion glycolysis (TLG) and even intratumoral 18-fluorodeoxyglucose (FDG) uptake heterogeneity (IFH) have become significent parameters as prognostic factors for ovarian cancer. Whole-body PET/CT is useful for assessment of recurrence of ovarian cancer in the presence of symptom.