湖南师范大学学报(医学版)
湖南師範大學學報(醫學版)
호남사범대학학보(의학판)
JOURNAL OF HUNAN NORMAL UNIVERSITY(MEDICAL SCIENCE)
2015年
2期
7-10
,共4页
阮晓花%金科%刘均喜%金仕新%周军校
阮曉花%金科%劉均喜%金仕新%週軍校
원효화%금과%류균희%금사신%주군교
新生儿%局灶性脑白质损伤%SWI%DWI
新生兒%跼竈性腦白質損傷%SWI%DWI
신생인%국조성뇌백질손상%SWI%DWI
Newborn%Punctate white matter lesions%SWI%DWI
目的:利用1.5T 核磁共振磁敏感加权成像(SWI)及扩散加权成像(DWI)对新生儿局灶性脑白质损伤中的 T1WI 高信号病灶机制进行探讨。方法:选择2012年6月至2013年6月在我院确诊的局灶性脑白质损伤患儿42例,其中早产儿20例,足月儿22例,分别采用 MR 常规序列(T1WI、T2WI、FLAIR)、DWI 及 SWI 序列进行扫描,对新生儿局灶性脑白质损伤 T1WI 高信号病灶机制进行探讨。结果:38例 SWI 显示中等信号,与周围信号无差别,4例患儿 SWI 在双侧侧脑室后角旁发现斑片状低信号,其中早产儿1例,足月儿3例,经卡方检验,早产儿和足月儿 PWML 在 SWI 发生出血率无明显差异。50.0%(21)的病例在 DWI 上呈现高信号,早产儿组和足月儿组 PWML 在DWI 上脑白质缺氧缺血的发生率无统计学差异。结论:大多数新生儿脑白质损伤 T1WI 呈高信号病灶并不代表微出血,T1WI 高信号产生主要与脑白质缺氧缺血、缺氧缺血-再灌注及出血三种病理改变同时或不同阶段存在有关。
目的:利用1.5T 覈磁共振磁敏感加權成像(SWI)及擴散加權成像(DWI)對新生兒跼竈性腦白質損傷中的 T1WI 高信號病竈機製進行探討。方法:選擇2012年6月至2013年6月在我院確診的跼竈性腦白質損傷患兒42例,其中早產兒20例,足月兒22例,分彆採用 MR 常規序列(T1WI、T2WI、FLAIR)、DWI 及 SWI 序列進行掃描,對新生兒跼竈性腦白質損傷 T1WI 高信號病竈機製進行探討。結果:38例 SWI 顯示中等信號,與週圍信號無差彆,4例患兒 SWI 在雙側側腦室後角徬髮現斑片狀低信號,其中早產兒1例,足月兒3例,經卡方檢驗,早產兒和足月兒 PWML 在 SWI 髮生齣血率無明顯差異。50.0%(21)的病例在 DWI 上呈現高信號,早產兒組和足月兒組 PWML 在DWI 上腦白質缺氧缺血的髮生率無統計學差異。結論:大多數新生兒腦白質損傷 T1WI 呈高信號病竈併不代錶微齣血,T1WI 高信號產生主要與腦白質缺氧缺血、缺氧缺血-再灌註及齣血三種病理改變同時或不同階段存在有關。
목적:이용1.5T 핵자공진자민감가권성상(SWI)급확산가권성상(DWI)대신생인국조성뇌백질손상중적 T1WI 고신호병조궤제진행탐토。방법:선택2012년6월지2013년6월재아원학진적국조성뇌백질손상환인42례,기중조산인20례,족월인22례,분별채용 MR 상규서렬(T1WI、T2WI、FLAIR)、DWI 급 SWI 서렬진행소묘,대신생인국조성뇌백질손상 T1WI 고신호병조궤제진행탐토。결과:38례 SWI 현시중등신호,여주위신호무차별,4례환인 SWI 재쌍측측뇌실후각방발현반편상저신호,기중조산인1례,족월인3례,경잡방검험,조산인화족월인 PWML 재 SWI 발생출혈솔무명현차이。50.0%(21)적병례재 DWI 상정현고신호,조산인조화족월인조 PWML 재DWI 상뇌백질결양결혈적발생솔무통계학차이。결론:대다수신생인뇌백질손상 T1WI 정고신호병조병불대표미출혈,T1WI 고신호산생주요여뇌백질결양결혈、결양결혈-재관주급출혈삼충병리개변동시혹불동계단존재유관。
Objective To probe the machanism of SWI and DWI in T1WI high singanl of neonatal Punctate white mat-ter lesions. Methods From June 2012 to June 2013, 42 cases with PWML dignosed by MRI in our hospital was checkted by MRI (T1WI, T2WI and FLAIR), DWI and SWI sequence can scan. We disscuss the machanism of the high signal intensity in the T1WI. Results SWI in 38 cases of displayed medium signal, and there was no difference compared with the signals around. SWI in 4 cases underwent displayed low signal, and 1 case was premature infant and 3 cases was full-term children. There was no difference between preterm infants and full term by the chi-square test. 50.0% (21 cases) showed high signal on DWI, and between preterm infants and full term group, PWML in DWI on the incidence of brain hypoxic ischemia showed no statistical difference. Conclusion The high singal of T1WI in PWML was not meaned micro bleeding in most neonatal. T1WI signal was mainly associated with brain white matter hypoxic ischemia and hypoxic、ischemic -reperfusion and bleeding from the three kinds of pathological changes at the same time or at different stages.