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磁共振动态增强扫描SI-T曲线对前列腺良恶性病变的鉴别诊断

Journal of Practical Radiology(2006)

Cited 23|Views9
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Abstract
目的探讨磁共振动态增强扫描(DCE-MRI)信号强度-时间曲线(signal intensity-time curve,SI-T曲线)对前列腺良恶性病变的鉴别诊断价值。方法对30例经病理证实的前列腺癌(Pca)患者和32例良性前列腺增生(BPH)患者行MRI平扫,动态增强扫描及延迟扫描,观察病变的MRI表现特征并分别绘制前列腺癌病灶和增生结节的SI-T曲线,重点分析其信号强度变化及SI-T曲线的走形趋势。结果在磁共振动态增强扫描早期Pca癌灶和BPH增生结节均呈明显强化,有助于病变的检出。SI-T曲线参数:峰值时间Pca组早于BPH组,强化程度和强化率Pca组均高于BPH组(P<0.05)。结论磁共振动态增强扫描SI-T曲线对BPH和Pca的鉴别诊断有较明确的价值。
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Key words
prostatic carcinoma,dynamic enhancement,magnetic resonance imaging,prostatic hyperplasia
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