第四脑室

第四脑室肿瘤的MRI诊断及鉴别诊断

The MRI Features and Differential Diagnosis of the Fourth Ventricle Tumour

儿童第四脑室及小脑常见肿瘤的CT鉴别诊断初探

Common Tumors of the Fourth Ventricle and Cerebellum in Childhood : Evaluation of CT Differential Diagnosis

目的探讨第四脑室区肿瘤的磁共振成像（MRI）诊断价值。

Objective To evaluate diagnostic value of MRI in detecting the fourth ventricular tumors .

第四脑室肿瘤的CT诊断

Diagnosis of CT on Tumor of Fourth Cerebral Ventricle

正常成人侧脑室与第四脑室的CT测量

Measurement of normal lateral and fourth ventricular size of 422 adults by CT and their implications

第四脑室肿瘤的MRI诊断（附12例报告）

MRl of Tumors in the Fourth Ventricle ( Report of 12 Cases )

结果本组第四脑室肿瘤28例不同肿瘤，经CT扫描全部获得阳性特征，诊断准确率较高。

Results 28 cases of varied tumor had positive signs in Ct scan with high diagnostic rate .

结论第四脑室闭塞或狭窄是CT诊断小脑幕裂孔下疝的可靠征象。

Conclusion The occlusion and stricture of the fourth ventricle are reliable CT signs to diagnose traumatic cerebello-tentorial gap hernia .

结论：头颅MRI检查可提高第四脑室肿瘤的诊断水平和显微手术质量。

Conclusions : Head MRI scans could improve diagnosis and microsurgery effect of the fourth ventricle tumors .

结论MRI对第四脑室肿瘤的诊断及鉴别诊断具有重要价值。

Conclusions The MRI features of the fourth ventricular tumor could help to make the true diagnosis .

脑干肿瘤CT诊断基于第四脑室的受压移位，和脑干周围脑池的狭窄变形。

CT diagnosis based on appreciation of displacement of thefouth ventricle and compression and distortion of the cisterns that around the brain stem .

目的认识外伤性小脑幕裂孔下疝的CT征象，并探讨其对判定第四脑室继发性缩窄的意义。

Objective To understand the CT findings of traumatic cerebello-tentorial gap hernia and to discuss their significance for identifying the secondary stricture of the fourth ventricle .

第四脑室周围组织的GABA在家兔低氧循环反应中的作用

The actions of GABA around the area of the fourth ventricle on circulatory response to acute hypoxia in rabbits

若在icvSP之前，预先向第四脑室注射阿片肽受体拮抗剂纳洛酮（100～200μg），可增强SP引起的肺动脉和颈动脉升压反应。

Pretreatment of opioid receptor antagonist naloxone ( 100 ￣ 200 μ g ) by intracerebroventricular ( 4th ) injection could enhance the SP induced pulmonary and carotid pressor responses .

方法：采用第四脑室微量注射方法，观察家兔第四脑室注射组胺受体阻断剂后SP对呼吸的效应。

Methods The method of microinjection in the fourth ventricle was applied to investigate the effect of SP on respiration after pretreating with histamin receptor antagonist .

37例脊髓积水空洞症患者的磁共振成像（MRI）资料显示大多数病例的病变范围较大，且位于脊髓中央，与第四脑室无明显的交通。

Abstract : We reviewed the MR imaging and the clinical data of 37 cases of Hydrosyringomyelia in this paper . MR imaging showed that the lesions in most cases were relatively large and located in the central parts of the spinal cords .

多因素分析提示，第四脑室出血扩张是预测预后的一项最有意义的指标，其次是GCS评分，居第三位的是弥漫性脑室出血。

Logistic regression multivariate analysis demonstrated that hemorrhagic dilation of the fourth ventricle was the most significant outcome predictor , followed by GCS score and then the presence of diffuse IVH .

据Shapiro氏法，第四脑室横径为8.77～16.51mm，前后径为3.49～9.66mm。

Fourth ventricular lateral and anteroposterior diameter was 8.77 mm to 16.51 mm and 3.49 mm to 9.66 mm respectively according to Shapiro ′ s method .

bcl-XL表达水平和强度和首次发病时肿瘤在第四脑室底的浸润是儿童髓母细胞瘤的重要预后因素。

In childhood medulloblastoma patients , the evidence of high expression of bcl-XL and primary infiltration of the floor of the fourth ventricle might serve as important prognostic factors .

第四脑室底部桥脑出血5例，血肿量5-15ml，血肿全部清除。

Of the 5 patients with pons hematoma , hematoma was totally removed .

按年龄和性别分组进行测量，测量的结果经统计学分析表明：各年龄组的VCR均值，第四脑室前后径及横径均值，以及每组男女相应均值之间的差异均无显著性。

The statistical analysis of the measurements demonstrated that no significant difference was found in VCR mean values and fourth ventricular anteroposterior and lateral diameters among the three age groups and between males and females in every age group .

结果出血量≥15ml，出血部位位于小脑蚓部，血肿累及脑干和（或）破入第四脑室，伴急性阻塞性脑积水的患者预后不良，死亡率明显增高。

Results The mortality significantly increased and the prognosis was bad in patients whose manifestations were as followings : bleeding volume ≥ 15 ml , bleeding location was cerebellar vermis , hematoma involved brainstem and ( or ) broke into the fourth ventricle , be complicated with acute obstructive hydrocephalus .

导水管、第四脑室混合性胶质瘤1例报告

One Case : Mixed Glioma of Aqueduct Mesencephalon and Fourth Ventricle

第四脑室出血扩张与预后关系的探讨

The relationship between hemorrhagic dilation of the fourth ventricle and outcome

第四脑室脑囊虫临床误诊分析

The analysis of clinic mistaken diagnosis for the fourth ventricle cysticercosis

第四脑室肿瘤显微手术的临床研究

Clinical study on microsurgery for neoplasm of the fourth ventricle

第四脑室脉络丛乳头状瘤

Choroid plexus papillomas of the fourth ventricle : report of 12 cases

家兔第四脑室微量注射阿托品对迷走&加压反应的影响

Effect of Fourth Ventricular Microinjection of Atropine on Vagus-Pressor Response in Rabbits

833%见有第四脑室变形、前移及幕上脑室扩张；

Distortion , anterior displacement of the fourth ventricle in 83 3 % .

血管紧张素Ⅱ在兔第四脑室的心血管效应

Cardiovascular Effects of Angiotensin ⅱ Injected into the Fourth Cerebral Ventricle in Rabbits