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.

Noninvasive Diagnosis of Cardiac Amyloidosis by MRI and Echochardiography

This study described the radiological features on echocardiography and MRI specific to cardiac amyloidosis confirmed on biopsy. Eleven cases of biopsy-proven cardiac amyloidosis were retrospectively reviewed in this study. All patients underwent biopsy, cardiac MRI and echocardiography. The main echocardiography and MRI findings were as follows: diffuse ventricular and septum wall thickening, atrial enlargement, pericardial effusion, restricted left ventricular (LV) systolic and diastolic function, characteristic granular sparkling of myocardium. MRI revealed a characteristic pattern of global subendocardial late enhancement, extending in varying degrees into the neighboring myocardium. The findings agreed with the infiltration distribution of amyloid protein. Typical abnormalities seen on echocardiography and MRI should have important diagnostic and prognostic value of cardiac amyloidosis. MRI should be considered in the diagnosis of cardiac amyloidosis if echocardiographic features are suspicious.

Analysis of CT and MRI in the Diagnosis of Shoulder Joint Injury

Objective: To observe the effect of multi-slice spiral CT and magnetic resonance imaging (MRI) in the diagnosis of shoulder injury. Methods: 120 patients with shoulder injury who were treated in our hospital (January 2020 to December 2021) and underwent surgical treatment were diagnosed as shoulder injury. They were divided into CT group, MRI group and joint diagnosis group. The detection rates of the two methods were compared. Results: In the diagnosis of shoulder injury, MRI group was higher than CT group, and the joint diagnosis group was higher than the other two groups. Conclusion: In the diagnosis of shoulder injury, the joint examination of multi-slice spiral CT and magnetic resonance imaging (MRI) can obtain a higher diagnostic rate and ideal effect.

Analysis of the Application Value of MRI and CT Diagnosis of Lumbar Disc Herniation

Objective:To analyze the application value of MRI and CT diagnosis for those with lumbar disc herniation.Methods:The data of 62 patients with LDH treated in our hospital from January 2019 to December 2019 were analyzed retrospectively.All patients were diagnosed as LDH after operation,and 62 patients were treated with MRI and CT.The accuracy of CT and MRI in the diagnosis was analyzed according to the gold standard of operation results.Results:62 patients were diagnosed as LDH after operation,including 25 cases with intervertebral disc herniation,12 cases with intervertebral disc prolapse,8 cases with intervertebral disc nodule,7 cases with intervertebral disc dissociation as well as 10 cases with intervertebral disc bulge.The accuracy of MRI diagnosis(95.16%)was higher than that of CT(75.81%),and the difference was statistically significant(P<0.05).Conclusion:For the diagnosis of LDH,MRI is more accurate,but CT is faster and cheaper.Both of them have their own advantages can be chosen clinically according to the actual situation of patients on the basis of ensuring the diagnostic accuracy.

基于瘤体及瘤周多参数MRI对乳腺病变良恶性诊断列线图预测模型的构建与评价

目的:建立基于瘤体及瘤周多参数MRI的乳腺病变良恶性鉴别诊断的列线图模型,并验证其预测效能。方法:纳入经病理学检查明确乳腺病变性质的100例患者作为研究对象,所有患者均行核磁共振(MRI)检查和病理检查,根据病理检查结果分为乳腺良性病变组(n=62)和乳腺恶性病变组(n=38)。收集患者临床资料、瘤体各参数、瘤周各参数以及乳腺病变良恶性情况。多因素Logistic回归分析筛选乳腺恶性病变的危险因素并构建列线图预测模型,采用受试者工作特征(ROC)曲线和Hosmer-Lemeshow拟合优度检验验证模型的预测效能及拟合优度;内部验证采用Bootstrap。结果:乳腺恶性病变组病灶直径、平均扩散峰度(MK)、MDp/t、瘤周与瘤体MKp/n高于乳腺良性病变组(均P<0.05);乳腺恶性病变组表观扩散系数(ADC)值、平均扩散率(MD)、非对称磁化转移率(MTRasym)、MKp/t、MDp/n低于乳腺良性病变组(均P<0.05)。多因素分析结果显示,病灶直径、MK、MDp/t、MKp/n升高,ADC值、MD、MTRasym、MKp/t、MDp/n降低是乳腺恶性病变的独立影响因素(均P<0.05)。基于上述独立影响因素构建乳腺恶性病变的列线图预测模型,曲线下面积(AUC)为0.827。Hosmer-Lemeshow拟合优度检验显示P值为0.004。采用Bootstrap法,生成的校准曲线拟合良好。结论:瘤体及瘤周多参数MRI对乳腺病变良恶性鉴别诊断具有重要预测价值,基于乳腺恶性病变的独立影响因素构建的列线图预测效果良好,能直观预测乳腺发生恶性病变的概率。

产前彩超与MRI诊断植入型凶险性前置胎盘的应用价值

目的:探究产前彩超与MRI诊断植入型凶险性前置胎盘的诊断价值。方法:选取2020年1月~2021年6月广西壮族自治区玉林市第一人民医院收治的70例植入型凶险性前置胎盘患者为研究对象,根据诊断方式的不同进行分组,各35例,一组采用产前彩超诊断,另一组采用MRI诊断。两组诊断效果比较。结果:MRI组诊断子宫后壁胎盘植入的灵敏度、特异度高于产前彩超组,差异有统计学意义(P<0.05)。两组诊断胎盘前壁植入灵敏度、特异度、漏诊率、误诊率、诊断符合率差异无统计学意义(P>0.05)。结论:产前彩超与MRI诊断植入型凶险性前置胎盘均具有良好效果,彩超可作为首选,MRI可作为补充、进一步确诊检查手段。

MRI与CT影像检查在多发性脑梗死诊断中的应用分析

目的:探讨多发性脑梗死采用颅脑磁共振成像(MRI)诊断的价值。方法:选取2022年2月—2023年2月滨州市中心医院收治的120例多发性脑梗死患者的为研究对象,全部患者均经手术病理确诊,对120例患者分别采取MRI检查与CT检查,对比MRI与CT的诊断效能。结果:与CT检查相比,MRI检查对不同直径梗死病灶的检出率更高,差异有统计学意义(P<0.05);MRI检查对<24 h、24~72 h发病时间的梗死病灶的检出率更高,差异有统计学意义(P<0.05),而对>72 h病灶的检出率比较差异无统计学意义(P>0.05);MRI检查对基底节区、脑干、脑旁室、顶叶以及丘脑部位的梗死病灶检出率更高,差异有统计学意义(P<0.05)。结论:临床上采用MRI、CT检查均能有效检出多发性脑梗死,但MRI检查在多发性脑梗死的早期病灶、不同直径病灶以及不同部位病灶的诊断价值更高。

Prenatal diagnosis of choledochal cyst using magnetic resonance imaging: A case report

Choledochal cysts are congenital anomalies of the biliary ducts, characterized by cystic dilatation of the ducts.Prenatal diagnosis of this anomaly using ultrasonography (US) has been well documented. Magnetic resonance imaging (MRI) has recently become an important complement to US in prenatal diagnosis of fetal anomalies. We herein report a patient in whom at 24 wk' gestation US suggested a right upper quadrant abdominal cyst and in whom at 26 wk' gestation MRI more clearly delineated the cyst and its surrounding structures and suggested a choledochal cyst, which was confirmed at postnatal surgery and histopathology.

Syringomyelia after operation:diagnosis and its formational mechanism

Objective： To describe the MRI findings and discuss the pathogenesis formation mechanism of syringomyelia in the patients after spine surgical operation. Methods： Totally 13 patients were been enrolled in the study. Before operation, none of our patients presented with spinal cord syringomyelia. The mean follow-up duration was 6 years （range 2-10 months） by MRI. Four of the 13 patients after spinal cord tumor removed operation, 3 patients after spinal trauma operation, 2 cases had scoliosis before, 2 cases were cervical spondylotic myelopathy and 2 cases had tethered cord syndrome before operation. MR features of pre- and post-operation on all patients were been studied in contrast with surgical results and clinical symptoms. The radiology diagnostic was made by 3 different radiologists respectively. The characteristics of length, width, signals, shape of cavity and spinal cord position as well as subarachnoid shape were focused on. Results： All the patients had no syringomyelia on MRI before operation. The spinal cord of 7 patients showed persist compression and 2 patients had tethered cord before operation. MRI features of syringomyelia after operation in our cases showed longitudinal cavity with syrinx fluid had T1 and T2 relation characteristics of cerebrospinal fluid （CSF）. The mean length was 5.5 spinal segment, 4 cord of 13 patients presented cord compressed from anterior materials, 4 occurred postoperative adhesion to the back of lumbar spinal canal and spinal cord of 1 cases clung to the front wall of cervical spinal canal. Conclusion： The mechanism of syringomyelia in the patients after spinal surgical intervention may be the persisting compression or intention of the spinal cord in the period of pre- or post-operation. The edema, cyst, malacia of spinal cord are the most important lesions and risk factors resulted in the syringomyelia.

A modified method for locating parapharyngeal space neoplasms on magnetic resonance images: implications for differential diagnosis

The parapharyngeal space(PPS) is an inverted pyramid-shaped deep space in the head and neck region, and a variety of tumors, such as salivary gland tumors, neurogenic tumors, nasopharyngeal carcinomas with parapharyngeal invasion, and lymphomas, can be found in this space. The differential diagnosis of PPS tumors remains challenging for radiologists. This study aimed to develop and test a modified method for locating PPS tumors on magnetic resonance(MR) images to improve preoperative differential diagnosis. The new protocol divided the PPS into three compartments: a prestyloid compartment, the carotid sheath, and the areas outside the carotid sheath. PPS tumors were located in these compartments according to the displacements of the tensor veli palatini muscle and the styloid process, with or without blood vessel separations and medial pterygoid invasion. This protocol, as well as a more conventional protocol that is based on displacements of the internal carotid artery(ICA), was used to assess MR images captured from a series of 58 PPS tumors. The consequent distributions of PPS tumor locations determined by both methods were compared. Of all 58 tumors, our new method determined that 57 could be assigned to precise PPS compartments. Nearly all(13/14; 93%) tumors that were located in the pre-styloid compartment were salivary gland tumors. All 15 tumors within the carotid sheath were neurogenic tumors. The vast majority(18/20; 90%) of trans-spatial lesions were malignancies. However, according to the ICA-based method, 28 tumors were located in the pre-styloid compartment, and 24 were located in the post-styloid compartment, leaving 6 tumors that were difficult to locate. Lesions located in both the pre-styloid and the post-styloid compartments comprised various types of tumors. Compared with the conventional ICA-based method, our new method can help radiologists to narrow the differential diagnosis of PPS tumors to specific compartments.

CT和MRI动态增强扫描诊断和评估原发性肝癌患者微血管浸润价值研究

目的研究使用电子计算机断层扫描(CT)和磁共振(MRI)动态增强扫描诊断和评估原发性肝癌(PLC)患者微血管浸润(MVI)的价值。方法2020年1月~2023年1月我院收治的PLC患者50例,术前均接受腹部CT和MRI检查,记录肿瘤边缘模糊征象、瘤内新月征、静脉浸润的双预测因子(TTPVI)、门静脉癌栓(PVTT)和表观弥散系数(ADC)。行肝叶切除术治疗,取术后组织行病理学检查诊断MVI。结果经术后组织病理学检查,诊断肝细胞癌(HCC)32例和胆管细胞癌18例,存在MVI者29例,无MVI者21例;CT检查MVI患者肿瘤边缘模糊、局部外凸结节、包膜不完整、多结节融合、瘤内新月征、TTPVI和PVTT等影像学征象占比分别为82.8%、17.2%、31.0%、17.2%、13.8%、65.5%和17.2%,显著高于无MVI患者(分别为14.3%、4.8%、4.8%、4.8%、0.0%、9.5%和0.0%,P<0.05);MRI检查MVI患者肿瘤边缘模糊、局部结节、包膜不完整、多结节融合、瘤内新月征、TTPVI和PVTT等影像学征象占比为89.7%、24.1%、37.9%、27.6%、13.8%、72.4%和24.1%,显著高于无MVI患者(分别为23.8%、9.5%、9.5%、9.5%、0.0%、14.3%和0.0%,P<0.05);经Logistic回归分析显示,CT和MRI检查发现病灶边缘模糊、TTPVI和PVTT是PLC患者发生MVI的独立影响因素(P<0.05)。结论CT和MRI动态增强扫描可通过特殊征象判断PLC患者MVI的存在,可帮助临床医生做出合理的诊治策略。

Multi-parametric MRI Diagnoses Cerebellar Hemangioblastoma:A Case Report

We performed contrast-enhanced T2 fluid-attenuated inversion recovery(T2-FLAIR)and dynamic contrast enhanced MRI to illustrate the imaging characteristics of one case of hemangioblastoma.T2-FLAIR showed a large cyst located in the right cerebellum with mural nodule.The intensely enhancing cyst wall was observed on enhanced T2-FLAIR images acquired from 5.6 to 23 minutes after contrast administration,and quantitative dynamic contrast enhanced-MRI demonstrated that both the cyst wall and mural nodule presented high Ktrans,Kep and Ve values compared with the contralateral normal cerebellar tissues.The cyst showed gradual enhancement and reached the highest signal intensity at 67 minutes after contrast administration on enhanced T2-FLAIR images.In conclusion,early enhancement of cyst wall on T2-FLAIR might be the characteristic imaging findings for cystic hemangioblastoma,which may assist in the diagnosis of hemangioblastoma preoperatively.

全身低剂量CT骨扫描联合MRI在多发性骨髓瘤诊断、分期及分型中的价值分析

目的探讨全身低剂量CT骨扫描联合MRI在多发性骨髓瘤诊断、分期及分型中的价值。方法回顾性选择2020年1月至2023年11月来亳州市人民医院诊治的72例多发性骨髓瘤患者病例资料,根据患者自身的疾病特点及相关部位行全身低剂量CT骨扫描、MRI检查。对比全身低剂量CT骨扫描、MRI及二者联合对多发性骨髓瘤、不同部位骨损害病灶的检出率,分析全身低剂量CT骨扫描、MRI与多发性骨髓瘤临床ISS分期的一致性、全身低剂量CT骨扫描、MRI对临床ISS分期的诊断效能,全身低剂量CT骨扫描、MRI与多发性骨髓瘤临床分型的一致性,全身低剂量CT骨扫描、MRI对多发性骨髓瘤临床分型的诊断效能。结果全身低剂量CT骨扫描联合MRI对多发性骨髓瘤的检出率明显较单一检查检出率高,差异有统计学意义(P<0.05)。二者联合对多发性骨髓瘤脊柱骨损害检出率明显较单一检查检出率高,差异有统计学意义(P<0.05);二者联合对颈椎、盆骨、腰椎、四肢及胸椎骨损害的检出率较单一检查高,但组间比较差异无统计意义(P>0.05)。全身低剂量CT与临床ISS分期的Kappa值为0.773(P=0.000),MRI与临床ISS分期的Kappa值为0.719(P=0.000),二者联合与临床ISS分期的Kappa值为0.971(P=0.000),二者联合与ISS分期一致性良好,全身低剂量CT骨扫描、MRI与ISS分期一致性较好。全身低剂量CT骨扫描联合MRI对临床ISS分期Ⅰ期、Ⅱ期的诊断特异度、对Ⅲ期的诊断敏感度明显较单一检查高,差异均有统计学意义(P<0.05);二者联合对Ⅰ期、Ⅱ期的诊断敏感度、对Ⅲ期的诊断特异度较单一诊断高,但组间比较差异无统计学意义(P>0.05)。全身低剂量CT骨扫描与临床分型的Kappa值为0.841,MRI检查与临床分型的Kappa值为0.801,二者联合与临床分型的Kappa值为0.980,CT、MRI及二者联合与临床分型的一致性良好(均P=0.000)。全身低剂量CT骨扫描联合MRI对多发性骨髓瘤临床分型IgG、IgD型、其他分型的诊断特异度、对IgA型的诊断敏感度明显较单一检查高,差异均有统计学意义(P<0.05);二者联合对IgG型、IgD型、其他分型的诊断敏感度、对IgA型的诊断特异度较单一诊断高,但组间比较差异无统计学意义(P>0.05)。结论全身低剂量CT骨扫描联合MRI对多发性骨髓瘤诊断准确率较单一检查高,对临床分期、分型的诊断一致性较好,二者联合可在一定程度上评估多发性骨髓瘤的诊断、分期及分型。

彩色多普勒超声与MRI联合诊断女性早期乳腺癌及分期的临床应用价值

目的探讨彩色多普勒超声与MRI联合诊断女性早期乳腺癌及分期的临床应用价值。方法收集2021年8月~2023年10月于我院行乳腺常规检查的女性1525例,其中发现乳腺占位115例,所有患者均入院接受手术治疗,通过病理证实病灶的良、恶性,并对其临床及相关的影像资料进行分析。全部患者术前均行彩色多普勒超声和MRI检查,以病理结果为诊断的金标准,观察常规检查女性乳腺在行单一的彩色多普勒超声、单一的MRI以及二者联合的不同影像检查方法检测阳性的检出率,比较3种检查方法对乳腺癌早期诊断及其分期的应用价值。结果115例行手术切除治疗并作病理学检查,共检查出病灶123个,其中67个为良性,56个为恶性;单一彩色多普勒超声诊断显示,良性病灶51个,误诊病灶16个;恶性病灶46个,漏诊病灶10个。单一MRI检查发现良性病灶61个,误诊病灶6个;恶性病灶53个,漏诊病灶3个。二者联合诊断发现良性病灶65个,误诊病灶2个;恶性病灶54个,漏诊病灶2个。单一MRI及彩色多普勒超声联合MRI诊断乳腺癌的准确性(93.50%,96.75%)高于单一彩色多普勒超声(78.86%,P<0.05);彩色多普勒超声联合MRI检查诊断乳腺癌的敏感度(96.43%)、特异度(97.01%)、阳性预测值(96.43%)以及阴性预测值(97.01%)高于彩色多普勒超声(82.14%、76.12%、74.19%、83.61%,P<0.05),MRI检查诊断的敏感度(94.64%)、特异度(91.04%)、阳性预测值(88.33%)、阴性预测值(96.83%)与彩色多普勒超声比较,差异无统计学意义(P>0.05);单一彩色多普勒超声、单一MRI与二者联合诊断在诊断乳腺癌不同分期方面的差异无统计学意义(P>0.05)。结论单一的彩色多普勒超声和MRI在乳腺良、恶性病灶的诊断及鉴别诊断中均有一定的价值,而二者联合应用对于乳腺癌的早期诊断的准确性、敏感度及其分期上可以有效地得到提高。

Early Diagnosis of Spontaneous Spinal Epidural Hematoma with Echo-Planar Gradient-Echo T2*-Weighted MR Imaging

Spontaneous spinal epidural hematoma (SSEH) is a rare idiopathic condition that leads to the acute onset of neurological deficits, which can have catastrophic consequences if not recognized early. It is important to make an early precise diagnosis. Spinal epidural hematoma has been increasingly recognized since the advent of magnetic resonance imaging (MRI). However, T1- and T2-weighted gradient-echo sequences are relatively less sensitive to the magnetic susceptibility effects of hemorrhage. Echo-planar gradient-echo T2*-weighted MR imaging (T2* MRI) is sensitive to these magnetic susceptibility effects and is commonly used for the detection of hemorrhage. We reported that the case of a 76-year-old man who presented with tetra paresis had an early diagnosis of spontaneous spinal epidural hematoma early diagnosed by T2* MRI.

基于半暗带缺血区鉴别角度分析多模态MRI在不同时期脑梗死患者诊断中的价值

目的基于半暗带缺血区鉴别角度分析多模态MRI在不同时期脑梗死患者诊断中的应用价值。方法选取2021-05—2023-06在新疆医科大学第一附属医院接受检查的198例脑梗死疑似患者,根据发病时间分为A组(发病时间≤4.5 h)、B组(4.5 h<发病时间≤7 d)和C组(7 d<发病时间≤3个月),均接受常规MRI序列、扩散加权成像(DWI)、灌注加权成像(PWI)等多模态MRI技术和DSA检查,以DSA检查结果为金标准,比较常规MRI平扫、DWI和多模态MRI(常规MRI平扫+DWI+PWI)检查对3组脑梗死患者诊断的敏感度、特异度、准确率。制作3种检查方法诊断不同时期脑梗死患者的受试者工作特征(ROC)曲线,测算曲线下面积(AUC)。结果A组52例脑梗死疑似患者,确诊32例;B组103例脑梗死疑似患者,确诊67例;C组43例脑梗死疑似患者,确诊28例。在A组、B组、C组中,常规MRI平扫、DWI、多模态MRI 3种方法对脑梗死的诊断效能均有差异,以多模态MRI的灵敏度、特异度、准确率最高(P<0.05)。A组中常规MRI平扫、DWI、多模态MRI 3种方法诊断脑梗死的ROC曲线AUC值分别为0.6738、0.7642、0.8329,B组分别为0.6857、0.7714、0.8582,C组分别为0.6912、0.7806、0.8629,差异有统计学意义(P<0.05)。结论基于半暗带缺血区鉴别角度分析多模态MRI在不同时期脑梗死患者诊断中具有较高的临床应用价值,能够显著提高灵敏度、特异度、准确率及AUC值,值得推广应用。

MRI影像组学用于心脏疾病的诊断价值及其研究进展

影像组学是一种基于医学影像数据的分析方法,传统的心脏磁共振扫描序列与其相结合可以从原始数据中获取定量空间数据,能够更加精准诊断心脏疾病的类型、严重程度和进展情况。基于此,本文就MRI影像组学在心脏疾病的诊断方面已体现的价值及不同序列MRI影像组学用于心脏疾病的研究进展进行综述。

MSCT及MRI影像参数在腰椎管狭窄症的诊断价值及与腰椎功能改善的相关性

目的探索MSCT及MRI影像参数在腰椎管狭窄症的诊断价值及与腰椎功能改善的相关性。方法回顾性分析的80例腰椎管狭窄症患者(观察组)、81例非腰椎管狭窄症者(对照组)均在2020年5月至2023年4月期间收集,均进行了MSCT、MRI检查,比较两组各影像参数(椎管面积、椎管矢径、椎管横径、硬膜囊面积),再针对观察组腰椎功能改善情况分为两组,即改善者(n=58),未改善者(n=22),比较两组MSCT及MRI的影像参数。结果MSCT检查下,改善患者椎管面积(202.87±36.43)mm^(2)、椎管矢径(15.75±2.49)m m、椎管横径(15.88±2.65)mm、硬膜囊面积(157.59±12.72)mm^(2)高于未改善患者(P<0.05),MRI.检查下,改善患者椎管面积(204.82±34.22)mm^(2)、椎管矢径(16.93±2.51)mm、椎管横径(15.98±1.44)mm、膜囊面积(158.77±10.51)mm^(2)高于未改善患者(P<0.05)。经RDC曲线分析,MSCT椎管面积、椎管矢径、椎管横径、硬膜囊面积预测腰椎管狭窄症患者腰椎功能改善情况的AUC分别为0.762、0.620、0.788、0.795。MRI椎管面积、椎管矢径、椎管横径、硬膜囊面积预测腰椎管狭窄症患者腰椎功能改善情况的AUC分别为0.806、0.796、0.874、0.880。结论MSCT、MRI在预测腰椎管狭窄症患者腰椎功能中均具有较高效能。

MRI和CT诊断在颅底沟通性脑膜瘤患者中的应用价值

目的 探讨MRI和CT诊断在颅底沟通性脑膜瘤患者中的应用价值。方法 选取延安大学附属医院2016年3月至2024年3月收治的98例颅底沟通性脑膜瘤患者实施研究,对患者CT、MRI诊断资料及临床资料进行回顾,分析CT、MRI在疾病诊断,肿瘤对周围骨质、软组织结构侵犯的价值。结果 98例患者在颅底位置内外沟通,其中62例患者呈现颅眶沟通,26例患者呈现颅鼻沟通,10例患者呈现颅颈沟通。CT诊断在颅底沟通性脑膜瘤的定性诊断中准确率达到85.71%(84/98),MRI诊断的定性诊断准确率达到87.76%(86/98),两组对比差异无统计学意义(P>0.05)。CT对颅底沟通性脑膜瘤侵犯周围骨质的诊断符合率为83.67%(82/98),MRI的诊断符合率为64.29%(63/98),CT高于MRI,组间对比差异有统计学意义(P<0.05)。CT对颅底沟通性脑膜瘤侵犯周围软组织的诊断符合率为66.33%(65/98),MRI的诊断符合率为93.88%(92/98),MRI高于CT,组间对比差异有统计学意义(P<0.05)。结论 CT与MRI均可应用于颅底沟通性脑膜瘤的诊断,在疾病定性诊断中均具有较高的诊断价值;CT的优势是能够清晰地显示颅底孔道、周围骨质增生变化、病灶斑片钙化;MRI的优势是可清晰地显示对周围软组织的侵犯。提示合理应用两种影像学技术,是更准确、更全面地诊断颅底沟通性脑膜瘤的重要方式。

1.5 T MRI对子宫内膜癌术前分期的诊断价值

目的分析1.5 T MRI对子宫内膜癌术前分期的诊断价值。方法回顾性选取2019年1月至2023年12月就诊于新疆生产建设兵团第二师库尔勒医院妇科且临床资料完整的42例子宫内膜癌患者作为研究对象,术前均接受1.5 T MRI检查且影像学资料完整。以术后病理分期结果为“金标准”,检验术前1.5 T MRI对子宫内膜癌分期的一致性及诊断效能。结果42例患者术后病理诊断检出Ⅰ期27例(64.29%)、Ⅱ期6例(14.29%)、Ⅲ期8例(19.05%)、Ⅳ期1例(2.38%);术前1.5 T MRI检出Ⅰ期25例(59.52%)、Ⅱ期9例(21.43%)、Ⅲ期6例(14.29%)、Ⅳ期2例(4.76%),与术后病理诊断结果的吻合度较强(Kappa=0.829);术前1.5 T MRI鉴别诊断子宫内膜癌Ⅰ期、Ⅱ期、Ⅲ期、Ⅳ期的准确度(95.24%、97.62%、92.86%、97.62%)、敏感度(92.59%、100.00%、75.00%、100.00%)、特异度(100.00、97.22%、97.06%、97.22%)较高;术前1.5 T MRI鉴别诊断Ⅰa期、Ⅰb期的敏感度为100%,特异度为83.33%,准确度为96.30%,与术后病理诊断的吻合度较强(Kappa=0.886)。结论1.5 T MRI在子宫内膜癌术前分期诊断中具有较高的吻合度,且各期诊断的准确度、敏感度及特异度均较高,并且在Ⅰ期的浸润程度评估中同样具有较高价值,可为临床子宫内膜癌患者术前病情诊断及手术方案的制定提供客观依据,临床应用价值较高。