CAJ | 학술논문

目的通过与PET成像比较,探讨MR全身弥散加权成像(WB-DWI)在肿瘤诊断中的应用价值. 方法采用1.5T MR对22例临床高度怀疑为恶性肿瘤并已完成PET检查的患者行WB-DWI扫描,比较两种成像方法对病变显示的差异以及病变的ADC值与SUV值相关性. 结果 WB-DWI所见病灶数目多于PET检查,两种方法检出的肺、纵隔及腹部病灶数差异无统计学意义(P>0.05),WB-DWI检出骨的病灶数多于PET检查,差异有统计学意义(P<0.05).两种方法检出病灶的部位大多数一致.病变的ADC值与SUV值无相关性. 结论与PET成像相比较,WB-DWI显示的肿瘤病灶数量较多,对成人转移性骨肿瘤的显示敏感性高于PET,可作为肿瘤全身筛查的一种补充方法.
목적 통과여PET성상비교,탐토MR전신미산가권성상(WB-DWI)재종류진단중적응용개치. 방법 채용1.5T MR대22례림상고도부의위악성종류병이완성PET검사적환자행WB-DWI소묘,비교량충성상방법대병변현시적차이이급병변적ADC치여SUV치상관성. 결과 WB-DWI소견병조수목다우PET검사,량충방법검출적폐、종격급복부병조수차이무통계학의의(P>0.05),WB-DWI검출골적병조수다우PET검사,차이유통계학의의(P<0.05).량충방법검출병조적부위대다수일치.병변적ADC치여SUV치무상관성. 결론 여PET성상상비교,WB-DWI현시적종류병조수량교다,대성인전이성골종류적현시민감성고우PET,가작위종류전신사사적일충보충방법.
Objective To assess the value of clinical applications of whole-body diffusion-weighted imaging (WB-DWI) in diagnosing patients with malignant tumors compared with positron emission tomography (PET). Methods A total of 22 patients with highly suspected malignant tumors underwent WB-DWI after PET. The differences between the two imaging methods were compared in displaying lesions, and the correlation between ADC and SUV value was analyzed. Results More lesions were showed with WB-DWI than PET. There was no significant difference between the two methods in detecting the lesions of lung, mediastinal septum or abdomen (P>0.05), but more lesions in skeleton were showed with WB-DWI (P<0.05). No significant correlation between ADC and SUV value was found. Conclusion Compared with PET, WB-DWI can detect more tumor lesions. The sensitivity of WB-DWI in detecting metastatic tumors of bone is higher than that of PET.