CAJ | 학술논문

目的：探讨两种不同场强MR机对脊柱转移瘤的诊断价值、各自的信号变化以及不同的扫描技术特点，为两种场强MR诊断该疾病提供客观的依据。方法：回顾性总结高场MR（1.5T）与超低场MR（0.04T）诊断脊柱转移瘤各20例，分析其各自的特点。结果：两种场强发现病灶的敏感率均达到100%。敏感序列完全不同，高场是T1W，超低场是T2W。高场机的图像空间分辨率、序列选择、扫描时间等均明显优于超低场。结论：两种场强的MR机诊断脊柱转移瘤敏感、可靠，高场MR能提供更多的病理信息。
목적：탐토량충불동장강MR궤대척주전이류적진단개치、각자적신호변화이급불동적소묘기술특점，위량충장강MR진단해질병제공객관적의거。방법：회고성총결고장MR（1.5T）여초저장MR（0.04T）진단척주전이류각20례，분석기각자적특점。결과：량충장강발현병조적민감솔균체도100%。민감서렬완전불동，고장시T1W，초저장시T2W。고장궤적도상공간분변솔、서렬선택、소묘시간등균명현우우초저장。결론：량충장강적MR궤진단척주전이류민감、가고，고장MR능제공경다적병리신식。
Objective:To discuss the value of MR with different fieldstrengths in the diagnosis of spinal metastases and to afford a reasonable diagnostic standard in such diseases based on signal intensity and scanning technique of the different MR sets.Methods:40 cases with spinal metastasis were divided evenly to performed 1.5T high-field and 0.04T ultra-low field MR scanning.The characteristics of two kinds of MR imaging were analyzed.Results:Both kinds of MR sets detected spinal metastatic lesions with sensitivity of 100%, but the most sensitive sequences were totally different as follows:T1W sequence was the first choice of method on high-field MR,while T2W sequence was the better on ultra-low field MR.High-field MR showed more advantages over ultra-low field MR in spatial resolution of images,number of sequences and scanning time.Conclusion:Both high-field and ultra-low field MR can detect spinal metastases with high sensitivity and reliability,but high-field MR images can provide more pathologic details.