Purpose: To estimate the diagnostic values of B-US, CT, MRI and angiography for extraperitoneal pelvic softtissueneoplasms.
目的：评估B超、CT、MRI、血管造影对盆部腹膜外软组织肿瘤的诊断价值。
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Objective the aim of this study was to compare the differences in sampling methods of ct perfusion for softtissueneoplasms in the head and neck regions.