CAJ | 학술논문

目的观察肿瘤患者的原发灶及转移灶的DWI表现,并探讨全身DWI在肿瘤患者中的应用价值.方法对37例怀疑或确诊为恶性肿瘤的患者,应用3.0T磁共振全身DWI扫描,扫描结果经3D MIP重建,黑白反转,形成类PET影像,并测量病变区域的ADC值.结果恶性肿瘤的原发灶及转移灶的实性成份在DWI图像上均显示为明显的高亮信号,病变区域的ADC值较低,囊变及坏死部分呈以低信号为主的混杂信号,对比度明显高于常规扫描序列,较常规序列可以检出更多更小的病灶.结论磁共振全身DWI具有检查速度快,无需注射造影剂及接受辐射,可以用于肿瘤患者的检测及分期,及肿瘤治疗后的长期随访,为肿瘤患者的治疗提供指导.
목적관찰종류환자적원발조급전이조적DWI표현,병탐토전신DWI재종류환자중적응용개치.방법대37례부의혹학진위악성종류적환자,응용3.0T자공진전신DWI소묘,소묘결과경3D MIP중건,흑백반전,형성류PET영상,병측량병변구역적ADC치.결과악성종류적원발조급전이조적실성성빈재DWI도상상균현시위명현적고량신호,병변구역적ADC치교저,낭변급배사부분정이저신호위주적혼잡신호,대비도명현고우상규소묘서렬,교상규서렬가이검출경다경소적병조.결론자공진전신DWI구유검사속도쾌,무수주사조영제급접수복사,가이용우종류환자적검측급분기,급종류치료후적장기수방,위종류환자적치료제공지도.
@@@@Objective?to observe the performance of DWI in patients with primary tumor and metastases, and discuss the application value of Whole-body DWI in cancer patients. Methods 37 cases confirmed or suspected with malignant tumor underwent Whole-body DWI of 3.0T MRI, all native axial images were reformatted by 3D-MIP, and the grey scale was subsequently inverted against to obtain“PET-like”imaging to,and the ADC values of lesions were measured. Results All solid ingredients of primary or metastasis tumor showed obvious hyperintense in DWI imaging, and low ADC values;the cystic and necrosis parts showed mixed signal with low-signal intensity based. It had significantly higher contrast than that of conventional scanning sequence, and can detect more and small lesions compared with conventional sequence. Conclusion The Whole-body DWI of MRI can be used in the detection and staging of patients with tumor, long-term follow-up after cancer treatment, provide guidance to the treatment with quick scanning speed, no contrast enhancement injection and radiation.