[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

乳腺超声成像应选择探头频率覆盖7.5-15MHz的高频线阵探头,浅表乳腺组织(1-4cm深度)需要12MHz以上才能清晰显示微小钙化灶和微钙化簇,低于7.5MHz会漏诊早期病灶

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