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DWI联合IP/OP成像技术在脊椎转移瘤中的临床应用价值 被引量:1

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摘要 目的:探讨磁共振扩散加权成像(diffusion-weighted imaging,DWI)联合同相位(in phase,IP)/反相位(out of phase,OP)(IP/OP)成像技术在脊椎转移瘤中的应用价值。方法:回顾性分析经本院临床或病理证实的脊椎转移瘤患者38例的磁共振资料,并与正常脊椎12例的检查结果进行比较。所有被检查者均在常规T1加权成像(T1-weighted imaging,T1WI)和T2加权成像(T2-weighted imaging,T2WI)(T1WI+T2WI)、T2脂肪抑制成像(T2WI/FS)的基础上进行DWI序列及扰相梯度回波T1WIIP/OP扫描,比较方法 A(T1WI+T2WI)、方法 B(T2WI/FS)以及方法 C(DWI+IP/OP)在脊椎转移瘤中的检出率、定性率、及定性准确率,同时比较脊椎转移瘤和正常脊椎椎体的表观扩散系数(apparent diffusion coefficient,ADC)值及相对信号强度比(signal intensity ratios,SIR)值,并进行统计学分析。结果:A、B、C 3种方法病变检出率、定性率及定性准确率分别为78.9%、66.6%、56.6%;92.9%、77.3%、75.6%;100.0%、94.7%、94.4%,方法 A、B与方法 C相比差异有统计学意义(均P<0.05)。在b=800 s/mm2时脊椎转移瘤的ADC值为0.962±0.236,SIR值为1.07±0.16;正常椎体的ADC值为0.541±0.117,SIR值为0.61±0.18,两组比较差异有统计学意义(P<0.05)。结论:DWI联合IP/OP技术能够显著提高脊椎转移瘤的检出率、定性率及定性准确率,有很高的临床应用价值。
作者 蒋春峰
出处 《南通大学学报(医学版)》 2014年第6期531-532,共2页 Journal of Nantong University(Medical sciences)
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