CAJ | 학술논문

目的探讨磁共振DWI和PWI扫描技术在界定超急性期脑梗死影像半暗带的可行性和应用价值.方法回顾性分析2008年1月~2011年12月笔者所在神经内科收治的38例经临床确诊为超急性期脑梗死患者.38例患者经临床确诊后立即先后行CT和MRI扫描,排除脑出血,并在临床治疗后2d~1个月后进行MRI复查.对比区域表观扩散系数(ADC)和表观扩散系数比例(ADCR).结果38例病例超急性期脑梗死发病时MRI平扫T2WI未能明显显示新近梗死灶,而同一层面DWI 38例患者全部显示脑梗死的强异常高信号区,其中32例为大面积脑梗死,5例为腔隙性脑梗死.梗死中心对侧镜像区(ADC值10.112+0.976)与影像半暗带区ADC值对比无统计学意义外(P>0.05),与其他两个测量部位影像半暗带对侧正常区、病灶中心区对比均有统计学意义(P<0.05).讨论：DWI和PWI扫描技术均能及早发现超急性期脑梗死,综合应用二者能显著提高缺血性半暗带的预测率.
목적탐토자공진DWI화PWI소묘기술재계정초급성기뇌경사영상반암대적가행성화응용개치.방법회고성분석2008년1월~2011년12월필자소재신경내과수치적38례경림상학진위초급성기뇌경사환자.38례환자경림상학진후립즉선후행CT화MRI소묘,배제뇌출혈,병재림상치료후2d~1개월후진행MRI복사.대비구역표관확산계수(ADC)화표관확산계수비례(ADCR).결과38례병례초급성기뇌경사발병시MRI평소T2WI미능명현현시신근경사조,이동일층면DWI 38례환자전부현시뇌경사적강이상고신호구,기중32례위대면적뇌경사,5례위강극성뇌경사.경사중심대측경상구(ADC치10.112+0.976)여영상반암대구ADC치대비무통계학의의외(P>0.05),여기타량개측량부위영상반암대대측정상구、병조중심구대비균유통계학의의(P<0.05).토론：DWI화PWI소묘기술균능급조발현초급성기뇌경사,종합응용이자능현저제고결혈성반암대적예측솔.
Objective: To study the MRI DWI and PWI scanning technology in super acute cerebral infarction definition image penumbra of the feasibility and application value.Method: a retrospective analysis of 2008 January ~ 2011 December the neurological department of internal medicine 38 cases diagnosed in the acute phase of cerebral infarction patients.In 38 patients with clinically diagnosed immediately after has CT and MRI scanning, to exclude cerebral hemorrhage, and in the clinical treatment of 2D ~ 1 months after MRI review.In contrast to the regional apparent diffusion coefficient (ADC) and apparent diffusion coefficient ratio (ADCR).Results: 38 cases of hyperacute cerebral infarction onset unenhanced MRI T2WI failed to show recent infarct, and the same level of DWI 38 cases all showed cerebral infarction of the abnormal high signal intensity area, including 32 cases of large area cerebral infarction, 5 cases of lacunar cerebral infarction.Infarction center on the side mirror region (ADC 10.112+0.976) and imaging the penumbra zone ADC values of no statistical significance (P >0.05), and with the other two measuring site image penumbra contralateral normal zone, center of the lesion area contrast were statistically significant (P < 0.05).Discussion: DWI and PWI scanning technology to early detection of hyperacute cerebral infarction, comprehensive application two can significantly improve the ischemic penumbra prediction rate.