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首页> 外文期刊>American Journal of Neuroradiology >Topographical Distribution of Pontocerebellar Microbleeds
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Topographical Distribution of Pontocerebellar Microbleeds

机译：桥小脑微出血的地形分布

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摘要

BACKGROUND AND PURPOSE: Microbleeds (MBs) visualized by use of T2*-weighted gradient-echo MR imaging are pathologic blood-breakdown products after tiny cerebral hemorrhages. The topographic distribution of the lesions has not been compared with that of symptomatic intracerebral hemorrhage (ICH). The purpose of this study was to evaluate the distribution of MBs in the pontocerebellar region and to compare it with the distribution of ICHs reported in the literature. METHODS: We examined 164 consecutive hypertensive patients with ischemic infarction or spontaneous ICH over a 1-year period. Two experienced neuroradiologists assessed cerebral localization of MBs without prior knowledge of the clinical information and in consensus. After obtaining 16 standard axial brain images, we analyzed the anatomic locations and the vascular territories of the MBs in the pontocerebellar area. RESULTS: We detected 374 pontocerebellar MBs in 40 patients (8.1 ± 12.7). Pontine MBs showed a significant predilection for the central portion (middle part along the axial plane, 3.4 ± 4.9 [P < .01]; medial part along the coronal plane, 3.4 ± 4.1 [P < .01]) and mostly belonged to the territory of the anteromedial group arising from the basilar artery. Cerebellar MBs had a frequent distribution around the dentate nucleus, occurring significantly more in the lower half, in the medial part (3.4 ± 4.6; P < .01), and in the middle part along the axial plane (4.8 ± 7.0; P sup> .01). CONCLUSION: These findings were similar to the topography of ICH described in the literature. Our results suggest that MBs may be a lesional marker for ICH.
机译：背景与目的：使用T2 *加权梯度回波MR成像 可视化的微出血（MBs）是微小脑出血后的病理性血液分解产物。尚未将病变的地形分布 与有症状的 脑出血（ICH）进行比较。这项研究的目的是 来评估脑小脑区MBs的分布 ，并将其与 文献中报道的ICH分布进行比较。 。 方法：我们检查了164例连续1年内患有 缺血性梗塞或自发性ICH的高血压患者。 两名经验丰富的神经放射科医生评估了脑部定位<没有临床信息先验知识且共识一致的sup> 。在获得16张标准的轴向脑图像后，我们分析了小脑区MB的解剖位置和血管区域。结果：我们检测到40例患者的374例小脑MBs （8.1±12.7）。桥体MBs对中心部分表现出明显的偏爱（sup> （沿轴向平面的中间部分， 3.4±4.9 [P <.01]；沿冠状体的中间部分 平面，为3.4±4.1 [P <.01]），并且大部分属于 由基底 动脉引起的前中部区域。小脑MB在 齿状核周围频繁分布，在下半部， 在内侧部分的分布明显更多（3.4±4.6； P <.01），而在 沿轴向平面的中间部分（4.8±7.0; P sup> .01）。 结论：这些发现与< sup> ICH在文献中有所描述。我们的结果表明，MBs 可能是ICH的病变标志。

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  • 来源
    《American Journal of Neuroradiology》 |2004年第8期|00001337-00001341|共5页
  • 作者

    Seung-Hoon Lee; Seon-Joo Kwon; Ki Soon Kim; Byung-Woo Yoon; Jae-Kyu Roh;

  • 作者单位

    Department of Neurology, Seoul National University and Neuroscience Research Institute, SNUMRC and Clinical Research Institute, Seoul National University Hospital, Korea;

    Department of Neurology, Seoul National University and Neuroscience Research Institute, SNUMRC and Clinical Research Institute, Seoul National University Hospital, Korea;

    the Department of Preventive Medicine, Chosun University College of Medicine, Gwangju, Korea;

    Department of Neurology, Seoul National University and Neuroscience Research Institute, SNUMRC and Clinical Research Institute, Seoul National University Hospital, Korea;

    Department of Neurology, Seoul National University and Neuroscience Research Institute, SNUMRC and Clinical Research Institute, Seoul National University Hospital, Korea;

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