急性滑脱性髌股关节撞击综合征的MRI检查方法

目的:研究急性滑脱性髌股关节撞击综合征的MRI检查方法。方法:对76例急性滑脱性髌股关节撞击综合征病例进行膝关节MRI平扫。采用横断位FE3D T1WI(三维快速梯度回波T1WI),TSHIRT(脂肪抑制快速反转恢复序列T2WI);矢状位FE3D T1WI,STIR(脂肪抑制梯度回波反转恢复序列T2*WI);冠状位STIR。结果:76例MRI均显示髌骨及股骨外髁软骨、骨质不同程度的损伤,关节囊不同成分的积液,60例显示不同程度的髌支持带损伤,54例可见髌骨外侧半脱位。结论:采用合理的MR序列技术,对诊断急性滑脱性髌股关节撞击综合征、膝关节各结构损伤程度的评价具有极高的价值。

MRI Differentiation Diagnosis of Occupying Lesions in Cerebellopontine Angle Area

Objective： To explore the value of magnetic resonance imaging （MRI） in diagnosis of occupying lesions in cerebellopontine angle area. Methods： MRI records of 78 patients with pathologically confirmed occupied lesions in cerebellopontine angle area were analyzed. Results： Of the 78 cases, 48 （61.5%） were unilateral acoustic neuroma, 5 （6.4%） were bilateral acoustic neuroma, 12 （15.4%） were meningioma, 4 （5.1%） were trigeminal neuroma, 3 （3.8%） were lipoma, 2 （2.6%） were melanoma, and 1 （1.3%） was medulloblastoma. According to the anatomic site, tumor lesion character, and MRI signal, the majority of cerebellopontine angle area tumors were diagnosed accurately. Conclusion： MRI plays an important role in diagnosis of occupying lesions in cerebellopontine angle area.

比较腰椎间盘突出MRI与CT诊断的准确性及临床价值

目的:比较腰椎间盘突出MRI与CT诊断的准确性及应用价值.方法:选择我院2015年1月-2018年1月收治的腰椎间盘突出患者80例,对患者先进行CT检查,然后进行MRI检查.比较CT和MRI对腰椎间盘突出的诊断准确率.结果:和CT检查对比,MRI诊断准确率明显更高,P<0.05.结论:对腰椎间盘突出患者采取CT和MRI进行检查,均可以获得较高的诊断准确率,2种方法各具优缺点,可以联合2种方法对腰椎间盘突出进行诊断,有利于进一步提高诊断准确率.螺旋CT检查方式通过结合患者的症状进行综合分析,可以有效地提高诊断准确率.但是对检出椎间游离会受到较大限制.而MRI可以通过任意角度显示病变组织的异常信号,直观性更加强.

Comparative Study between MRI Features and Pathology in FIGO Stage Ⅰ and Ⅱ Endometrial Carcinoma

Objective： To analyze MRI features of FIGO stage Ⅰ and Ⅱ endometrial carcinoma and to study the value of MRI in assessing myometrial and cervical invasion of endometrial carcinoma. Methods： Thirty patients with surgicopathologically proven endometrial carcinoma were included in this retrospective study. All patients underwent Tl-weighted spin-echo, T2-weighted fast spin-echo and dynamic contrastenhanced fast multiplanar spoiled gradient echo sequences before surgery. The type, signal intensity and enhancement features of the tumors and the appearance of junctional zone or subendometrial enhancement were analyzed. The MRI diagnosis of myometrial and cervical invasion was correlated with pathologic findings.Results： Endometrial carcinoma demonstrated diffuse widening of endometrial stripe （n=14） or polypoid or large mass in the endometrial cavity （n=16）. The tumors were usually isointense relative to the myometrium on TlWI and hyperintensity on T2WI. In the first phase of dynamic contrast-enhanced sequences, diffuse endometrial carcinoma usually showed mild （n=8） or moderate （n=5） enhancement, while focal endometrial carcinoma tended to enhance markedly （n=6） or moderately （n=9）. On T2WI junctional zone was seen in 18 cases. On dynamic contrast-enhanced images subendometrial enhancement was seen in 17 cases. The sensitivity, specificity and diagnostic accuracy of dynamic contrast-enhanced images in combination with T2WI were 87.5%, 95.5% and 93.3% for assessing deep myometrial invasion, and 75%, 95.5% and 90% for assessing cervical invasion. Conclusion： MRI is accurate and reliable in the evaluation of myometrial and cervical invasion of endometrial carcinoma, and should be performed as preoperative routine examination.

MRI检查与CT检查诊断脊柱结核患者的临床效果比较

分析MRI检查方法与CT检查方法诊断脊柱结核患者的临床效果。方法:研究对象为我院收治的脊柱结核患者60例,收治时间为2018年1月~2020年12月。检查方法为MRI检查法与CT检查法。对比MRI检查方法与CT检查方法对患者骨质破坏、椎间盘及椎间盘软组织损伤病变的确诊率。结果:MRI检查方法下骨质破坏的确诊率明显较高,达到了55.00%,CT检查方法下确诊率为40.00%;椎盘软组织损伤的MRI确诊率达到了16.67%,大大高于CT检查方法的3.33%(P<0.05),椎间盘损伤的确诊率则是CT检查效果更好,达到了61.67%,明显高于MRI检查方法的35.00%(P<0.05)。结论MRI检查方法与CT检查方法对脊柱结核患者确诊均有较好的效果。