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3.0T磁共振扩散加权成像在经直肠超声引导前列腺穿刺活检中的价值(重发)
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DOI:
作者:
陈捷,衣晓蕾,赵俊功,宋国平,黄慕民,胡兵
Chen Jie, Yi Xiao-Lei, Zhao Jun-Gong, et al
作者单位:
1. 上海交通大学附属第六人民医院超声医学科,上海超声医学研究所; 2. 上海交通大学附属第六人民医院放射科
1. Department of Ultrasound, 2. Department of Radiology, Shanghai Sixth People’s Hospital, Shanghai Jiaotong University School of Medicine,
关键词:
经直肠超声;磁共振;扩散加权成像;前列腺;活检
transrectal ultrasound; MRI; Diffusion-weighted imaging; prostate; biopsy
摘要:
目的: 探讨综合TRUS和MRI的穿刺方案对前列腺癌患者阳性检出率的影响,以及TRUS和MRI对穿刺选点的价值。 方法: 80例前列腺癌疑似患者在穿刺活检术前行TRUS和MRI检查。穿刺以8点法系统穿刺为基础,再对影像学检查可疑区行靶向穿刺,影像学结果与病理结果作对照。 结果: 8针法系统穿刺结合TRUS目标靶向穿刺的阳性率为33.8%,增加MRI目标靶向穿刺后的阳性率为45.0%。TRUS与MRI联合应用后对前列腺癌的敏感性、准确率升高,与单一检查结果有统计学差异,p<0.05。 结论: 增加MRI目标靶向穿刺后,前列腺癌患者的检出率有升高趋势。MRI和TRUS对不同部位前列腺癌灶的诊断存在互补性。
Objective: To evaluate the role of 3.0T magnetic resonance (MR) DWI and transrectal ultrasound (TRUS) for the diagnosis of prostate cancer. To discuss the value of combining both imaging data in prostate biopsy. Methods: 80 patients with elevated prostate specific antigen or abnormal digital rectal examination were enrolled in this study. TRUS and multiple sequence of MRI were performed before biopsy. Systematic octant biopsies, TRUS targeted biopsy and MRI targeted biopsy were performed. The results of TRUS and MRI were compared with pathology. Results: Compared systematic octant biopsy with TRUS targeted biopsy, the detection rate of prostate cancer patients was 33.8%. Increasing targeted biopsy of MRI suspicious areas, the detection rate of prostate cancer patients was 45.0%.After combination of TRUS and MRI, the sensitivity and accuracy of prostate cancer were statistically higher than those of single examination results (p<0.05). Conclusions: Increasing targeted biopsy of MRI suspicious areas, the detection rate of prostate cancer patients tended to improve. MRI and TRUS have different diagnostic value, according to prostate lesions in different parts. They can be used as complementary examinations.
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