空间环境地面模拟装置(Space Environment Simulation and Research Infrastructure,SESRI)为哈尔滨工业大学承建的国家“十二五”重大科技基础设施项目,用于模拟空间辐照环境,研究空间带电粒子对航空航天器件性能的影响效应。1.2 MeV/1...空间环境地面模拟装置(Space Environment Simulation and Research Infrastructure,SESRI)为哈尔滨工业大学承建的国家“十二五”重大科技基础设施项目,用于模拟空间辐照环境,研究空间带电粒子对航空航天器件性能的影响效应。1.2 MeV/10 mA电子加速器是SESRI最大的综合辐照试验舱的电子辐照源之一,可提供最高能量与最大流强分别为1.2 MeV与10 mA的电子束。本文基于1.2 MeV电子加速器的总体设计要求,主要介绍扫描系统中扫描磁铁、扫描电源和扫描不均匀度测量装置的研制及实验验证,重点介绍了45°斜入射样品台给扫描不均匀度带来的特殊问题及解决方法。实验结果表明:1.2 MeV电子加速器的扫描面积可达1000 mm×1000 mm,扫描不均匀度小于10%,达到了设计指标,从而也验证了技术方案与技术路线的正确性。展开更多
目的:探讨韧带样纤维瘤病的临床特点、误诊原因及防范措施。方法:对2022年10月收治的1例曾被误诊为增生性肌炎的韧带样纤维瘤病患者的临床资料进行回顾性分析。结果:1例因左大腿快速增长的疼痛性肿物入院患者,曾误诊为增生性肌炎,入院...目的:探讨韧带样纤维瘤病的临床特点、误诊原因及防范措施。方法:对2022年10月收治的1例曾被误诊为增生性肌炎的韧带样纤维瘤病患者的临床资料进行回顾性分析。结果:1例因左大腿快速增长的疼痛性肿物入院患者,曾误诊为增生性肌炎,入院后经多学科医师会诊,给予手术治疗,术后病理及免疫组织化学检查明确诊断韧带样纤维瘤病,术后恢复良好,尚在随访中,无复发。结论:韧带样纤维瘤病的临床误诊率高,病理及免疫组织化学检查可明确诊断。临床医师应加强对其认识,认真鉴别诊断,以减少和避免该病误诊误治。Objective: To investigate the clinical features, causes of misdiagnosis and preventive measures of desmoid fibromatosis. Methods: The clinical data of a patient with desmoid fibromatosis who was misdiagnosed as proliferative myositis in October 2022 were analyzed retrospectively. Results: One patient was misdiagnosed as proliferative myositis because of a painful mass growing rapidly in his left thigh. After admission, he was consulted by a multi-disciplinary physician and was given surgical treatment, the diagnosis of desmoid fibromatosis was confirmed by pathology and immuno-histochemistry after operation. The postoperative recovery is good and still in follow-up, with no recurrence. Conclusions: The misdiagnosis rate of desmoid fibromatosis is high. The diagnosis can be made by pathological and immunohistochemical examination. Clinicians should pay more attention to its differential diagnosis so as to avoid misdiagnosis and mistreatment.展开更多
文摘目的:探讨韧带样纤维瘤病的临床特点、误诊原因及防范措施。方法:对2022年10月收治的1例曾被误诊为增生性肌炎的韧带样纤维瘤病患者的临床资料进行回顾性分析。结果:1例因左大腿快速增长的疼痛性肿物入院患者,曾误诊为增生性肌炎,入院后经多学科医师会诊,给予手术治疗,术后病理及免疫组织化学检查明确诊断韧带样纤维瘤病,术后恢复良好,尚在随访中,无复发。结论:韧带样纤维瘤病的临床误诊率高,病理及免疫组织化学检查可明确诊断。临床医师应加强对其认识,认真鉴别诊断,以减少和避免该病误诊误治。Objective: To investigate the clinical features, causes of misdiagnosis and preventive measures of desmoid fibromatosis. Methods: The clinical data of a patient with desmoid fibromatosis who was misdiagnosed as proliferative myositis in October 2022 were analyzed retrospectively. Results: One patient was misdiagnosed as proliferative myositis because of a painful mass growing rapidly in his left thigh. After admission, he was consulted by a multi-disciplinary physician and was given surgical treatment, the diagnosis of desmoid fibromatosis was confirmed by pathology and immuno-histochemistry after operation. The postoperative recovery is good and still in follow-up, with no recurrence. Conclusions: The misdiagnosis rate of desmoid fibromatosis is high. The diagnosis can be made by pathological and immunohistochemical examination. Clinicians should pay more attention to its differential diagnosis so as to avoid misdiagnosis and mistreatment.
文摘我国乳腺癌发病人数及死亡人数均居世界首位,早发现、早诊治对乳腺癌患者至关重要。超声弹性成像技术(Ultrasonic Elastography, UE)可以提高常规超声诊断乳腺癌的准确性,UE技术主要分为应变式弹性成像技术、声辐射脉冲成像技术和剪切波弹性成像技术三大类,UE技术不只在乳腺病变良恶性的鉴别方面,还在乳腺影像报告和数据系统(Breast Imaging Reporting and Data System, BI-RADS)分类优化、新辅助化疗疗效和乳腺癌患者预后评估等方面发挥着重要作用。
