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目的：探讨超顺磁性氧化铁（ＳＰＩＯ）颗粒作为膀胱内应用的对比剂，与高清晰度的Ｔ２ＷＩ结合应用对膀胱肿瘤的诊断价值。方法：对４０例疑有膀胱肿瘤的患者进行前瞻性研究，用１．５Ｔ体相控阵线圈装置行ＭＲＩ检查。成像前将含ＳＰＩＯ的溶液（１７９．２ｍｇ Ｆｅ／ｌ）
Objective: To investigate the diagnostic value of superparamagnetic iron oxide (SPIO) particles as bladder contrast agent in combination with high-resolution T2WI in the diagnosis of bladder cancer. Methods: Forty patients with suspected bladder tumor were prospectively studied, and MRI was performed with a 1.5T volume phased array coil. The SPIO-containing solution (179.2 mg Fe / l)