Purpos: To evaluate the significance of carbon dioxide digital subtraction angiography (CO2-DSA) in the diagnosis of cavernous hemangioma of the liver (CHL).
目的：评价二氧化碳数字减影血管造影（CO2-DSA）在肝海绵状血管瘤（CHL）中的诊断价值。
Purpos: To evaluate the significance of carbon dioxide digital subtraction angiography (CO2-DSA) in the diagnosis of cavernous hemangioma of the liver (CHL).
目的：评价二氧化碳数字减影血管造影（CO2-DSA）在肝海绵状血管瘤（CHL）中的诊断价值。
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