两种不同视野扩散加权成像在前列腺癌病变中的应用对比  

Comparison of two different FOV diffusion weighted imaging in prostate cancer

作　　者：李杨飞[1] 丁建荣[1] 潘璟琍[1] 朱华勇[1] 李丽红[1] 何海青[1] 季文斌[1] LI Yanqfei;DING Jianrong;PAN Jingli;ZHU Huayong;LI Lihong;HE Haiqing;JI Wenbin(Department of Radiology,Taizhou Hospital,Linhai 317000,P.R.China)

机构地区：[1]浙江省台州医院放射科,浙江临海317000

出　　处：《医学影像学杂志》2018年第11期1907-1909,共3页Journal of Medical Imaging

基　　金：浙江省医药卫生科技计划(编号:2015KYB440);浙江省自然科学基金项目(编号:LY16H180010)

摘　　要：目的对比小视野和常规视野扩散加权磁共振成像在前列腺癌病变中的应用价值。方法使用3. 0T MR扫描仪对32例经手术或穿刺活检证实的前列腺癌患者进行小视野DWI(r FOV DWI)和常规视野DWI(c FOV DWI)检查,对两种方法获取到图像质量进行评价;同时测量前列腺癌病灶的ADC值进行比较分析。结果 r FOV DWI和c FOV DWI序列对图像质量的评级分别为4. 527±0. 464、3. 254±0. 534,P值<0. 01,有统计学意义; r FOV DWI、c FOV DWI序列在前列腺癌病变中测量得到的ADC值分别为0. 832×10^(-3)mm^2/s、0. 885×10^(-3)mm^2/s,差异无统计学意义。结论 r FOV DWI可更清晰显示前列腺癌的形态、边界,提供高分辨率的扩散图像,为前列腺癌的精确诊断提供帮助。Objective To compare the reduced field-of-view diffusion weighted imaging （rFOV DWI） and conventional diffusion weighted imaging （cFOV DWI） in the application of prostate cancer. Methods 32 patients with prostate cancer were scanned with rFOV DWI and cFOV DWI using 3.0 T MR scanner. Image quality of two groups were subjective assessment; ADC values of lesion and contralateral normal glands were simultaneouly measured for comparison. All cases were confirmed by surgery or biopsy. Results The image quality rating of rFOV DWI and cFOV DWI was 4.527±0.464, 3.254±0.534, （ P 〈0.01）; The ADC value of rFOV DWI and cFOV DWI was 0.832×10^-3 mm^2/s, 0.885×10^-3 mm^2/s respectively （ P 〉0.05）. Conclusion rFOV DWI can clearly show the shape and boundary of prostate cancer than cFOV DWI, improve high-resolution diffusion images, and provides help for accurate diagnosis of prostate cancer.

关 键 词：小视野 磁共振成像 扩散加权 前列腺癌 

分 类 号：R445.2[医药卫生—影像医学与核医学] R737.2[医药卫生—诊断学]