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stem injury
相关语句
  脑干损伤
    Embryotoxicity and direct toxicity of alcohol can pose many effects on auditory system, such as extending latency of auditory brainstem response (ABR) wave which may caused by direct toxicity of alcohol making brain stem injury and decreasing conduction velosity of nerve impulse in alcohol user.
    随着各种听觉神经功能的测试方法不断进步、完善,关于乙醇直接毒性和胚胎毒性对听觉系统造成诸多影响的研究也越来越多:例如对饮酒者测试听性脑干反应(auditory brainstem response,ABR),发现ABR各波潜伏期延长,且与其累计乙醇摄入量存在对数关系,这可能是乙醇的直接毒性导致饮酒者脑干损伤使神经冲动传导速度降低而引起听功能异常。
短句来源
    The radiation retinopathy incidence of 91.7% (22/24) and 8 patients with brain stem injury had happened in first 3 years after radiotherapy in patients with NPC.
    本组91.7%(22/24)放疗性视网膜病变和8例脑干损伤发生在治疗后3年内。
短句来源
    The visual field injury in 2 patients were found during in 2 and 3 months after radiotherapy, and the brain stem injury had been observed after 9 and 30 months since first term of radiotherapy.
    有2例在放疗后2和3个月时发生视野损害,于首程放疗结束后9和30个月发生脑干损伤
短句来源
    Results There were 36 males and 15 females. The median latency period was 3 years for temporal lobe injury and 20 months for brain stem injury.
    结果男性患者36例,女性15例,颞叶损伤的中位潜伏期为3年,脑干损伤为1年8个月。
短句来源
    Thirty-five patients were treated with dexamethasone and vitamin et al in the early stage. The response rate were 75.0% for temporal lobe injury and 59.1% for brain stem injury.
    35例早期用激素、大量维生素等药物治疗者,对颞叶损伤的有效率75.0%,脑干损伤为59.1%。
短句来源
  “stem injury”译为未确定词的双语例句
    18 (35.3%) patients sufferred from temporal lobe injury,19(37.3%) from brain stem injury,2(3.9%) from cerebellum injury and 12(23.5%) from mixed position injury.
    本组颞叶型18例(35.3%),脑干型19例(37.3%),小脑型2例(3.9%),混合型12例(23.5%)。
短句来源
    Radiation-induced brain injuries were observed in 17 patients including brain stem injury in 1 (0.9%), temporal brain lobes in 3 (2.6%) and cranial nerves in 13 (11.1%).
    全组出现脑干放射性损伤1例(0.9%),大脑颞叶放射性损伤3例(2.6%),后组颅神经损伤13例(11.1%)。
短句来源
    Objective To study the clinical characteristics, MRI findings, diagnosis, treatment and prognostic factors of patients with radiation induced brain stem injury in nasopharyngeal carcinoma.
    目的 探讨鼻咽癌放射治疗后迟发性脑干损伤的临床特点、MRI表现、诊断、治疗、预后及相关因素。
短句来源
    It is suggested that adequate reduction of irradiation volume and dose at the brain stem should be able to lower the incidence of brain stem injury.
    建议设野时注意保护脑干 ,尽量减少脑干照射体积及照射剂量 ,以减少脑干放射损伤的发生率。
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  stem injury
Brain stem injury after radiofrequency trigeminal rhizotomy
      
The findings in this case are identical to the brain stem injury experimentally produced by complete cardiac arrest in the rhesus monkey.
      
Computed tomography correctly identified the injuries, except one brain stem injury, one contusion/rupture of the heart, one hepatic injury, two intestinal injuries, eight vertebral injuries and one joint dislocation.
      
MRI was performed 4 and 7 weeks respectively after traumatic brain-stem injury.
      
Distorted radial growth often occurred after a stem injury or as a branch scar heals.
      


Radiation encephalopathy(REP) after radiotherapy for nasopharyngeal carcinoma(NC)was observed and analysed by magnetic resonance imaging(MRI) in 84 patients.The early symtoms of REP,which occur firstly,are mainly mental symptoms due to lesions of the temporal lobes,and signs of pyramidal tract and cranial nerve lesion syndromes which are associated with the brain stem injury.The features of clinical manifestations of REP might be classified into 3 stages:early response,resting of the disease and delayed...

Radiation encephalopathy(REP) after radiotherapy for nasopharyngeal carcinoma(NC)was observed and analysed by magnetic resonance imaging(MRI) in 84 patients.The early symtoms of REP,which occur firstly,are mainly mental symptoms due to lesions of the temporal lobes,and signs of pyramidal tract and cranial nerve lesion syndromes which are associated with the brain stem injury.The features of clinical manifestations of REP might be classified into 3 stages:early response,resting of the disease and delayed response in the light of the course of disease.In this series of patients. 9.5% had no clinical symptoms.Therefore,We think that diagnosis of REP could not depend on its clinical manifestations and displaying the lesions of the temporal lobes is not difficult by CT but MRI examination is needed for displaying the lesions of the brain stem and cerebellum.

作者对84例鼻咽癌放疗后放射性脑病(REP)进行了研究。(1)REP的首发症状,多以颞叶受损的精神症状和癫痫;脑干受损的锥体束征和颅神经症状为首发症状。(2)各型REP的临床表现特点,按病程可分为:早期反应阶段,病情静止阶段和延迟反应阶段。(3)REP的MRI表现与临床症状关系。本组REP有9.5%没有临床症状,REP的诊断,仅凭临床表现诊断是有限的。CT显示颞叶病变多无困难,但要显示脑干和小脑的病变,需行MRI检查。

Objective To study the clinical characteristics, MRI findings, diagnosis, treatment and prognostic factors of patients with radiation induced brain stem injury in nasopharyngeal carcinoma. Methods From January 1991 to January 2001, 24 patients with radiation injury of brain stem were treated, 14 males and 10 females. The latency ranged from 6 to 38 months, with a median of 18 months. The lesions were located in the pons in 10 patients, mesencephalon+pons in 4, pons+medulla oblongata in 5,...

Objective To study the clinical characteristics, MRI findings, diagnosis, treatment and prognostic factors of patients with radiation induced brain stem injury in nasopharyngeal carcinoma. Methods From January 1991 to January 2001, 24 patients with radiation injury of brain stem were treated, 14 males and 10 females. The latency ranged from 6 to 38 months, with a median of 18 months. The lesions were located in the pons in 10 patients, mesencephalon+pons in 4, pons+medulla oblongata in 5, medulla oblongata in 2 and mesencephalon+pons+medulla oblongata in 3. MRI findings showed that the injury was chiefly presented as hypointensity foci on T 1 WI and hyperintensity foci on T 2 WI. Results Eighteen patients were treated with dexamethasone in the early phase, with symptoms relieved in 12 patients but unimproved in 6 patients. Eight 44% patients died within the 8~38 months, leaving 16 patients surviving for 0.5 to 6.0 years.Conclusions Radiation injury of brain stem has a short latency with severe symptoms, signifying poor prognosis. It is suggested that adequate reduction of irradiation volume and dose at the brain stem should be able to lower the incidence of brain stem injury.

目的 探讨鼻咽癌放射治疗后迟发性脑干损伤的临床特点、MRI表现、诊断、治疗、预后及相关因素。方法 对 2 4例鼻咽癌放射治疗后脑干损伤患者进行回顾性分析 ,男 14例 ,女 10例。潜伏期为 6~ 38个月 ,中位潜伏期 18个月。病灶部位 :脑桥 10例 ,中脑 +脑桥 4例 ,脑桥 +延髓 5例 ,延髓 2例 ,中脑 +脑桥 +延髓 3例。MRI表现为T1WI以低信号为主 ,T2 WI均为高信号。结果  18例早期用地塞米松治疗 ,12例症状体征有不同程度的改善 ,6例无效。 8例在出现神经症状 8~ 38个月死亡 ,现生存 16例 ,生存时间为 0 .5~ 6 .0年。结论 放射性脑干损伤潜伏期短 ,症状重 ,治疗困难 ,预后差。建议设野时注意保护脑干 ,尽量减少脑干照射体积及照射剂量 ,以减少脑干放射损伤的发生率。

Objective To study the clinical features,CT and MRI findings,diagnosis,treatment and prognostic factors of brain injury after radiotherapy in nasopharyngeal carcinoma(NPC).Methods From January 1991 to April 2004,51 patients of NPC with post-radiation brain injury in our hospital were analyzed retrospectively.Results There were 36 males and 15 females.The median latency period was 3 years for temporal lobe injury and 20 months for brain stem injury.18 (35.3%) patients sufferred from temporal lobe injury,19(37.3%)...

Objective To study the clinical features,CT and MRI findings,diagnosis,treatment and prognostic factors of brain injury after radiotherapy in nasopharyngeal carcinoma(NPC).Methods From January 1991 to April 2004,51 patients of NPC with post-radiation brain injury in our hospital were analyzed retrospectively.Results There were 36 males and 15 females.The median latency period was 3 years for temporal lobe injury and 20 months for brain stem injury.18 (35.3%) patients sufferred from temporal lobe injury,19(37.3%) from brain stem injury,2(3.9%) from cerebellum injury and 12(23.5%) from mixed position injury.MRI findings showed abnormal foci in the injured site as hypointensity foci on T_1WI and hyperintensity foci on T_2WI.Thirty-five patients were treated with dexamethasone and vitamin et al in the early stage.The response rate were 75.0% for temporal lobe injury and 59.1% for brain stem injury.Forty-four patients were followed up for 3 months to 10 years.20 patients died within the 7 months to 6 years after the emergence of symptoms of brain injury.10 patients died from the brain injury,5 from tumour metastases,2 from suicide,1 from nasopharyngeal hemorrhage,2 from unknown cause.25 patients survived until now.The symptoms of brain injury lasted for 3 months to 10 years.Conclusion MRI examination is preferred for post-radiation brain injury.The patients with brain stem injury have a shorter latency period and more severe symptoms than patients with temporal lobe injury do.Post-radiation brain injury has no effective treatment method.The incidence of post-radiation brain injury is associated with fractional dose,irradiation dose and volume.

目的探讨鼻咽癌放射治疗后脑损伤的临床特点、CT及MRI表现、诊断、治疗及预后因素。方法回顾性分析1991年1月至2004年4月收治的51例鼻咽癌放射治疗后脑损伤患者的临床病例资料。结果男性患者36例,女性15例,颞叶损伤的中位潜伏期为3年,脑干损伤为1年8个月。本组颞叶型18例(35.3%),脑干型19例(37.3%),小脑型2例(3.9%),混合型12例(23.5%)。MRI主要表现为信号异常,T1WI以低信号为主,T2WI为高信号。35例早期用激素、大量维生素等药物治疗者,对颞叶损伤的有效率75.0%,脑干损伤为59.1%。44例随访3个月~10年,20例在出现神经症状7个月~6年内死亡,其中死于脑损伤10例,肿瘤转移5例,自杀2例,鼻咽部大出血1例,死因不明2例。现生存25例,出现神经症状后生存3个月~10年,13例能生活自理,12例需人照顾。结论放射性脑损伤首选MRI检查;以颞叶损伤相比,脑干损伤潜伏期短,症状较重,治疗效果较差。放射性脑损伤缺乏特异性的治疗手段,它的发生与照射剂量、照射体积及分次剂量有关。

 
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