Objective To specify the diagnostic accuracy of low-field MRI on meniscal tears.
目的验证低场强磁共振成像(MRI)诊断半月板撕裂的准确性。
Objective: To analyze the value of low-field MRI for neurilemmoma in spinal canal.
目的：探讨椎管内神经鞘瘤的低场MRI表现及诊断价值。
Objective To determine the value of low-field MRI for the diagnosis of acute pancreatitis.
目的探讨低场强MRI对急性胰腺炎的诊断价值。
Purpose: To study the normal meniscus and articular cartilage of the knee with low field MRI.
目的：研究正常膝关节半月板及关节软骨的低场MRI表现。
Purpose: To evaluate the diagnostic value of the low field MRI in the spinal neurogenic tumors.
目的：评价低场MRI对椎管内神经源肿瘤的诊断价值。
Objective: To Study the characteristic of chordoma in low field MRI and improve MRI diagnostic level.
目的：旨在探讨低场MRI脊索瘤表现特点，提高其诊断水平。
Objective To study the application of low-field MRI in diagnosis and differential diagnosis of thyroid tumor.
目的探讨低场强MRI对甲状腺肿瘤的诊断和鉴别诊断。
Multidetector CT, hip arthroscopy, and high field MRI have further defined the pathoanatomy of hip dislocations.
多层螺旋CT，髋关节镜和高场强MRI进一步描述了髋关节脱位的病理解剖变化。
Purpose: To evaluate the value of X-ray plain, CT and low-field MRI in early avascular necrosis of femoral head.
目的：探讨X线、CT及低场MRI在诊断早期股骨头缺血坏死中的价值。
Objective To investigate MR findings and differential diagnosis of biliary obstructive disease with Low Field MRI.
目的探讨低场MRI对胆管梗阻性疾病的诊断和鉴别诊断价值。
Purpose: To evaluate the features and staging of avascular necrosis of the femoral head (ANFH) using Low-field MRI.
目的：分析股骨头缺血坏死（ANFH）低场MRI征象，评价ANFH的MRI分期及其关节积液的分级。
Objective: To evaluate the usefulness of low-field MRI in diagnosing intradural extramedullary tumors in the spinal canal.
目的探讨低场强MRI对椎管内髓外硬膜下肿瘤的临床诊断价值。
Purpose To study the value of low-field MRI in the diagnosis of the end-plate osteochondritis in lumbar disc degeneration.
目的探讨低场MRI对腰椎间盘退变伴终板骨软骨炎的诊断价值。
Conclusion: Low field MRI possesses a higher clinical value in the diagnosis of the tumors in cerebellopontine Angle region.
结论低场MRI对桥小脑角区肿瘤也有很高的临床诊断价值。
Conclusion: Contrast enhanced T1WI is better than FLAIR sequence in diagnosing intracranial leptomeningeal metastasis on low field MRI.
结论：对于颅内柔脑膜转移瘤的低场MR诊断，T1WI增强扫描优于FLAIR序列。
Conclusion: the low field MRI is sensitivity in detecting the spinal metastasis and helpful in differential diagnosis in spinal metastasis.
结论：MRI检查在诊断脊椎转移瘤及与其他脊椎病变的鉴别诊断中更敏感、更具特异性。
Combination of the feature of morphology and enhancement dynamics can increase the accuracy of low magnetic field MRI in breast carcinoma diagnosis.
结合分析病变的形态学特征及增强动力学表现，可提高低场MRI乳腺癌的诊断准确率。
Objective: To investigate the feasibility of cardiac imaging on low field MRI system and corresponding requirements for techniques and applications.
目的：探索低场磁共振成像系统心脏成像的可行性、技术和方法。
Purpose: To evaluate the value of FLAIR(Fluid attenuated inversion recovery) sequence in diagnosing intracranial leptomeningeal metastasis on low field MRI.
目的：评估低场MR液体衰减反转恢复（FLAIR）序列诊断颅内柔脑膜转移瘤的价值。
Objective To assay the value of low field MRI in diagnosis of early avascular necrosis of femur head (ANFH) and its pathological condition was also analyzed.
目的探讨低场MRI对早期股骨头缺血性坏死(ANFH)的诊断价值及其病理基础。
Methods: The manifestations of low field MRI in61cases with tumors in cerebellopontine Angle region documented by operation and pathology were analyzed retrospectively.
方法经临床、手术病理证实的桥小脑角区肿瘤61例，回顾性分析其低场MRI表现。
Results: The chief characteristics of chordoma in low field MRI were: tumor signal change, tumor shape transformation, bone destruction, the perivascular erosion , etc.
结果：脊索瘤的低场MRI的主要表现有：肿瘤信号变化，肿瘤形态改变，骨质破坏，周围血管侵蚀及肿瘤外周侵犯等。
Conclusion: Middle field MRI combining with SCT scan could not only exactly display early ANFH, but show staging, it might be a reliable methods for the study of early ANFH.
结论：中场MR结合螺旋CT扫描既可发现早期病变，又可进行分期，是研究早期ANFH的可靠手段。
Conclusion the Low field MRI is Avery useful procedure to diagnose the postoperative discitis and can demonstrate the complications such as epidural abscess or arachnoiditis.
结论低场MRI对术后椎间盘炎的诊断非常有用，而且还能显示硬膜外脓肿或蛛网膜炎等并发症。
MR and CT were of highly sensitivity and specificity in the diagnosis of upper abdominal traumatic lesions. In low field MRI the acute subcapsular hematomas alway showed long T2W.
MRI和CT一样对各种上腹部钝伤具有很高的敏感性和特异性，在低场MRI中，实质性脏器包膜下血肿急性期总是显示长t 2信号。
But besides the many potential advantages of ultra-high field MRI, there are also some methodological challenges like the destructive interference of transmit RF fields within typical volume coil.
此类超高场强MRI带来了许多可预见的优势，然而技术上的难题也随之产生，例如在一些特殊的线圈中RF发射场会产生相消性干涉现象。
Massachusetts General HospitalStandard MRI machines create a magnetic field that orients the hydrogen within body tissues’ water molecules in one direction.
麻省总医院标准的MRI机器能纸草一个磁场，让人体细胞内所有水分子中的氢朝向一个方向。
This is the equivalent of zapping a stationary object with an oscillating magnetic field of the sort used in MRI.
这相当于不断摆动MRI中的磁场，并令其轰击某一静止物体。
In MRI, the patient is placed in a strong magnetic field that causes some of his body's atomic nuclei, which act like tiny magnetised spinning tops, to align themselves with the field.
MRI是将患者置于某一强磁场中，该磁场可让患者机体原子核（其运动类似于磁化的陀螺）顺着磁场方向排列。
Monte Carlo simulation provides an alternate way to quantify the effects of inhomogeneous field gradients used in MRI and NMR.
蒙特卡罗模拟提供了一种定性研究MRI和NMR中非均匀场梯度扩散衰减的方法。
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