CT and MR imaging features of oral and maxillofacial hemangioma and vascular malformation
CT and MR imaging features of oral and maxillofacial hemangioma and vascular malformation
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DOI：
10.1016/j.ejrad.2004.09.011
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发表时间：
2005-07-01
影响因子：
3.3
通讯作者：
Kreiborg, S
中科院分区：
文献类型：
--
作者：
Kakimoto, N;Tanimoto, K;Kreiborg, S
目的：目的：分析口腔颌面部血管瘤和血管畸形的CT和MRI表现，并比较其CT和MRI特征。材料和方法：收集1996年11月至2002年3月间9例口腔颌面部血管瘤患者的临床资料，均行CT和MRI检查。回顾性评价CT和MR图像。对病灶的可探测性、病灶边界、肿瘤边缘、病灶内部性质、病灶与周围组织的对比度、病灶的CT值或信号强度、造影剂强化程度、注射造影剂后病灶内部性质、静脉结石的可探测性和骨吸收的可探测性进行评价。在两名患者中，由于牙齿和/或牙齿矫正的伪影，我们无法在任何CT图像中检测到病变。相反，我们可以发现所有病变的T2加权像和增强T1加权像。在T2加权图像与脂肪抑制技术，肿瘤往往表现出较高的对比度相比，周围tissue.Conclusion：T2加权图像与脂肪抑制技术和对比增强T1加权图像与脂肪抑制技术是非常有用的血管病变的检测。从任意方向（轴位、冠状位和矢状位图像）观察似乎适合于描绘肿瘤的延伸范围。CT对静脉结石的检出率上级优于MR。(C)2004爱思唯尔爱尔兰有限公司保留所有权利。
Purpose: To present CT and MR images and compare CT and MRI features of oral and maxillofacial hemangioma and vascular malformation.Material and methods: The clinical materials consisted of nine vascular tumors from nine patients examined by both CT and MR scanners between November 1996 and March 2002. Both CT and MR images were retrospectively evaluated. The following features were evaluated: detectability of the lesion, border of the lesion, tumor margin, inner nature of the lesion, contrast between the lesion and surrounding tissues, degree of CT value or signal intensity of the lesion, enhancement of contrast medium, inner nature of the lesion after contrast medium injection, delectability of phleboliths and delectability of bone resorption.Results: In two patients, we could not detect lesions in any of the CT images because of artifacts from the teeth and/or dental restorations. In contrast, we could detect all lesions on T2-weighted MR images and contrast enhanced T1-weighted MR images. On T2-weighted images with the fat suppression technique, tumors tended to show higher contrast compared to surrounding tissues.Conclusion: T2-weighted images with the fat suppression technique and contrast enhanced T1-weighted images with the fat suppression technique were very useful for the detection of vascular lesions. Observation from optional directions (axial, coronal and sagittal images) seemed appropriate for delineating the extension of the tumor. Phleboliths delectability on CT images was superior to that on MR images. (C) 2004 Elsevier Ireland Ltd. All rights reserved.