LAVA多时相动态增强技术结合DWI评价前列腺病变性质的应用价值

目的 探讨磁共振肝脏快速容积采集(LAVA)多时相动态增强技术结合扩散加权成像(DWI)在评价前列腺病变性质上的应用.方法 67例经组织病理学及随访证实的前列腺疾病患者,其中前列腺癌(PCa) 19例,前列腺良性病变(BPH)48例,行LAVA多时相动态增强及DWI扫描,测量并计算其表观扩散系数(ADC)值,经2名有经验的医师进行双盲阅片,比较T-SI曲线及其结合ADC值对PCa、BPH的定性诊断准确率.结果 T-SI曲线对PCa、BPH的定性诊断准确率分别为57.9％、72.9％,T-SI曲线结合ADC值对PCa、BPH的定性诊断准确率分别为73.7％、87.5％.结论 LAVA多时相动态增强技术结合ADC值对前列腺良恶性病变的鉴别具有重要应用价值.

Application of LAVA multi-phase dynamic enhanced technique combined with DWI in evaluating prostate lesions

Objective To explore the value of liver acquisition with volume acceleration(LAVA) multi-phase dynamic enhanced technique combined with magnetic resonance diffusion weighted imaging(DWI) in evaluating prostate lesions.Methods Totally 67 prostate disease patients confirmed by histopathology and follow-up were included in the present study.The patients included 19 with prostate cancer(PCa) and 48 with benign prostate hyperplasia(BPH).LAVA multi-temporal enhancement and DWI scanning were performed,and the values of apparent diffusion coefficient(ADC) were calculated.Two experienced radiologists evaluated the results in a double-blinded manner;the qualitative diagnosis accuracy rates of the T-SI curves alone or in combination with ADC for PCa and BPH were compared.Results The accuracy rates of T-SI curve alone for qualitative diagnosis of PCa,BPH were 57.9% and 72.8%,and those of T-SI curve combined with ADC value were 73.7% and 87.5%,respectively.Conclusion LAVA multi-phase dynamic enhanced technique combined with ADC is of great value for differential diagnosis of benign and malignant prostate lesions.