股骨骨肉瘤周围有明显软组织肿块，术前下列哪项检查最适合指导手术：

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24727' and id < 2117990 and id<>'2117990' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24727' and id > 2117990 and id<>'2117990' order by id asc limit 5