下列哪种无创检查方法可以显示血流方向：

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24719' and id < 2117416 and id<>'2117416' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24719' and id > 2117416 and id<>'2117416' order by id asc limit 5