1.5 T磁共振全身弥撒加权成像的临床应用价值

摘要

目的：探讨1.5 T磁共振全身弥散加权成像的临床应用价值。方法：收集本院行1.5 T磁共振全身弥散加权成像的自愿者4例、肿瘤患者9例、体检者4例，采用最大密度投影重建法及反窗视图，获得全身薄层弥散加权及其三维图像，并对发现疑有阳性病变的再进行局部常规MRI或CT扫描，对其影像图像进行评价及统计学分析。结果：16例获得清晰的三维图像，图像可评价性为91.1%，其中3例自愿者及2例体检者检查结果为阴性，1例自愿者检出睾丸鞘膜积液，2例体检者均检出囊性病变，8例肿瘤患者均检出转移灶，阳性率约68.8%，对恶性肿瘤的检出率为88.9%；对肿瘤的诊断效果与常规MRI或CT一致性良好，差异无统计学意义（P>0.05）。结论：磁共振全身弥散加权成像具备了探测疾病的敏感性，能基本满足临床体检筛查及诊断，可用于常规体检，且对恶性肿瘤的筛查诊断具有较高的临床应用价值。%Objective:To explore 1.5 T Whole Body Diffusion Weighted-Imaging and its clinical application value.Method:4 volunteers, 9 cancer patients and 4 health examination in our hospital were collected for 1.5 T whole body diffusion weighted imaging of volunteers, with maximum intensity projection method and anti window view, got a total body thin diffusion weighted and 3D images, and found the suspicious positive lesions to bureau of the Ministry of the conventional MRI or CT scanning, analysis and evaluation and statistics on the image.Result:16 cases got clear three-dimensional images, image evaluation was 91.1%, of which 3 volunteers and 2 patients tested negative, 1 cases were detected in testicular hydrocele, 2 cases were cystic lesions, 8 cases of tumor patients with metastasis detection, the positive rate was about 68.8%, the detection of malignant the tumor was 88.9%, the diagnostic effect on tumor and normal MRI or CT consistency was good, no statistical significance (P>0.05).Conclusion:Magnetic resonance whole body diffusion weighted imaging with the sensitivity for detection of disease, can basically meet the clinical medical screening and diagnosis, can be used for routine physical examination, diagnosis and curative effect evaluation of malignant tumor is of high clinical value.