目的：对比观察息肉状脉络膜血管病变(PCV)频域光相干断层成像(OCT)与光相干断层扫描血管成像(OCTA)的图像特征。

方法：选取2018-03/12在我院确诊为息肉状脉络膜血管病变(PCV)的患者25例25眼纳入研究，所有患者均行频域OCT和OCTA检查，观察上述检查结果的图像特征。

结果：本研究纳入患者25眼，频域OCT检查表现为浆液性和出血性色素上皮脱离(PED)14眼，OCTA检查示相应病变部位为低信号暗区，其旁有强信号点9眼； 频域OCT检查表现为“双层征”11眼，OCTA检查显示为网状结构的脉络膜异常分支血管网(BVN)； 频域OCT检查表现为息肉样病变(polyps)12眼，OCTA检查表现为强或低信号区。

结论：PCV患眼OCTA检查对BVN的表现更直观明显，息肉样病变表现为强或弱的信号，浆液性、出血性PED的OCT和OCTA图像均表现为低反射或低信号暗区，不具有特征性。二者显示的病变位置和形态具有相似性，但也有不同。

METHODS: Totally 25 eyes of 25 patients diagnosed with PCV in our hospital from March 2018 to December 2018 were included in the study. All the patients were examined by fluorescein fundus angiography(FFA)and /or indocyanine green angiography(ICGA)and OCT and OCTA were performed at the same time. Their similarities and differences between OCT and OCTA were compared.

RESULTS: OCT examination showed 14 eyes with serous and hemorrhagic pigment epithelial detachment(PED)in 25 eyes. OCTA lesions were in dark areas with low signal and 9 eyes showed strong signal points beside. OCTA showed branch vascular network(BVN)of reticular structure in 11 eyes with double layer sign. In 12 eyes with polyps lensions, OCTA showed strong or low signal areas.

CONCLUSION: OCTA is more intuitive to BVN in eyes with PCV. Polyps show strong or weak signals. Serous and hemorrhagic PED, OCT and OCTA images all showed low reflection or low singial dark ares,without characteristic. The lesion location and morphology of the two showed similarities, but also differences.