Article(id=1320388875428671921, tenantId=1146029695717560320, journalId=1319373289681944729, issueId=1320388863101612371, articleNumber=null, orderNo=null, doi=10.11876/mimt202502004, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1792734839540, onlineDateStr=2026-10-23, pubDate=1744214400000, pubDateStr=2025-04-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792734839540, onlineIssueDateStr=2026-10-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792734839540, creator=13701087609, updateTime=1792734839540, updator=13701087609, issue=Issue{id=1320388863101612371, tenantId=1146029695717560320, journalId=1319373289681944729, year='2025', volume='31', issue='2', pageStart='1', pageEnd='96', issueExtLink='null', onlineDate='null', pubDate='1744214400000', pubDateStr='2025-04-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792734836602, creator='13701087609', updateTime=1792746450319, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320437574611620097, tenantId=1146029695717560320, journalId=1319373289681944729, issueId=1320388863101612371, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320437574611620098, tenantId=1146029695717560320, journalId=1319373289681944729, issueId=1320388863101612371, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=19, endPage=23, ext={EN=ArticleExt(id=1320388875613221298, articleId=1320388875428671921, tenantId=1146029695717560320, journalId=1319373289681944729, language=EN, title=Application of magnetic resonance imaging sequences in a small animal model of cerebral small vessel hemorrhage, columnId=null, journalTitle=Modern Instruments & Medical Treatment, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Objective The aim of this study is to provide technical support and reference basis for the research on the mechanism of cerebral small vessel hemorrhage and treatment methods through small animal Magnetic Resonance Imaging (MRI) sequences. This will facilitate in - depth exploration of the nature of the disease, optimization of treatment strategies, and promotion of the development of new treatment methods.
Methods In this study, 5 C57 mice overexpressing the mutant sites of PIK3CA and MAP3K3 (p.I441M) were taken as the research objects. Imaging was carried out using different sequences of 7.0T small - animal nuclear magnetic resonance, such as T1WI, T2WI, SWI, DTI, and ASL. Parameter setting and image acquisition were performed, and the scanning results were statistically analyzed in terms of indicators such as the number of lesions, lesion area, and signal - to - noise ratio.
Results SWI shows excellent performance in the detection of the number, size, and signal - to - noise ratio of lesions (P<0.05). T2WI shows lesions more clearly than T1WI (P<0.05). DTI and ASL provide micro - structure and blood perfusion information respectively.
Conclusion The comprehensive application of multiple sequences is helpful for a comprehensive assessment of pathological characteristics
, authors=Zhanjing Wang, Jingdong Bi, Wenqi Wu, Jianfeng Lei
*, authorsList=Zhanjing Wang, Jingdong Bi, Wenqi Wu, Jianfeng Lei, authorCompany=null, correspAuthors=Jianfeng Lei, authorNote=null, correspAuthorsNote=null, copyrightStatement=
All copyrights in 2025 belong to the sponsor of the journal.Not content published by the journal may be reproduced or abridged without authorization., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1320388875940377011, articleId=1320388875428671921, tenantId=1146029695717560320, journalId=1319373289681944729, language=CN, title=小动物脑部小血管出血病灶模型的核磁序列扫描应用探索, columnId=1320381056239387017, journalTitle=现代仪器与医疗, columnName=医学工程, runingTitle=null, highlight=null, articleAbstract=
目的 本研究的目标是通过小动物磁共振成像(Magnetic Resonance Imaging,MRI)序列,为脑小血管出血机制研究和治疗手段提供技术支持与参考依据,利于深入探究该疾病本质与优化治疗策略,促进新治疗方法的研发。
方法 本研究以5只海绵状血管瘤小鼠模型(利用腺相关病毒作为载体,同时过表达突变鼠的PIK3CA和MAP3K3(p.I441M)突变位点)为研究对象,利用7.0T小动物核磁不同序列T1加权成像(T1-Weighted Imaging,T1WI)、T2加权成像(T2-Weighted Imaging,T2WI)、磁敏感加权成像(Susceptibilityweighted Imaging,SWI)、弥散张量成像(Diffusion Tensor Imaging,DTI)和动脉自旋标记成像(Arterial Spin Labeling,ASL)等成像,实行参数设定、图像采集,并从病灶数量、病灶面积、信噪比等指标对扫描结果进行数据统计分析。
结果 SWI在病灶数量、面积及信噪比检测上更加敏感(P<0.01),T2WI较T1WI对病灶显示更清晰(P<0.01)。DTI和ASL分别提供微观结构与血流灌注信息。
, authors=王战京, 毕京东, 武文琦, 雷建锋
*, authorsList=王战京, 毕京东, 武文琦, 雷建锋, authorCompany=null, correspAuthors=雷建锋, authorNote=
王战京,男,硕士研究生,主管技师,研究方向:医学影像技术,小动物磁共振成像技术,小动物CT成像技术;
毕京东,男,硕士研究生,技师,研究方向:医学影像技术,小动物磁共振成像技术
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雷建锋,男,硕士研究生,副主任技师,研究方向:医学影像技术,小动物磁共振成像技术,小动物CT/PET成像技术
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2025年版权归本刊主办单位所有未经本刊书面许可, 不得转载、摘编本刊所有文章内容。, copyrightOwner=中国科学器材公司, extLink=null, articleAbsUrl=null, sourceXml=/ffZeYbXpc6L8GtOI8X7zg==, magXml=jIkEI7ZxP53A7kqHE7r5eA==, pdfUrl=null, pdf=J4XnISYN7ovGVaJ5yXkxaA==, pdfFileSize=2030400, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=P7ViAQ4qIcnEaLm6TKWeIQ==, mapNumber=null, fund=null)}, authors=[Author(id=1320388876343030201, tenantId=1146029695717560320, journalId=1319373289681944729, articleId=1320388875428671921, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1320388876435304891, tenantId=1146029695717560320, journalId=1319373289681944729, articleId=1320388875428671921, authorId=1320388876343030201, language=EN, stringName=Zhanjing Wang, firstName=Zhanjing, middleName=null, lastName=Wang, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Core Facility Center, Capital Medical University, Beijing 100069, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1320388876514996668, tenantId=1146029695717560320, journalId=1319373289681944729, articleId=1320388875428671921, authorId=1320388876343030201, language=CN, stringName=王战京, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=首都医科大学中心实验室,北京 100069, bio={"content":"
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