Faingold Ricardo, Oudjhane Kamaldine, Armstrong Derek C, Albuquerque Pedro A B
Department of Diagnostic Imaging, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario M5G 1X8, Canada.
Top Magn Reson Imaging. 2002 Aug;13(4):241-61. doi: 10.1097/00002142-200208000-00005.
Magnetic resonance imaging has the advantages of multiplanar capability and high degree of tissue differentiation. It is useful for assessing the extent of soft-tissue abnormalities, such as vascular malformations, inflammatory and infectious processes, muscle disorders, and limb hypertrophy. Magnetic resonance imaging is sensitive to the presence of water and edema and is a good indicator for early diagnosis of inflammation and its level of activity. Fat-saturation techniques, including T2-weighted sequences and inversion recovery imaging, optimize diagnostic accuracy. T1-weighted images are good at defining the distribution and proportion of fat in the body, so they are useful in evaluating syndromes of the limbs, including vascular malformations, as well as lipoatrophy-lipodystrophy conditions. Magnetic resonance imaging provides guidance for efficient tissue biopsy. It allows comprehensive pretherapeutic assessment of soft-tissue vascular anomalies. It constitutes a good modality for following up the natural history of soft-tissue disorders during childhood.
磁共振成像具有多平面成像能力和高度的组织分辨能力。它对于评估软组织异常的范围很有用，如血管畸形、炎症和感染性病变、肌肉疾病以及肢体肥大。磁共振成像对水和水肿的存在敏感，是炎症早期诊断及其活动水平的良好指标。脂肪抑制技术，包括T2加权序列和反转恢复成像，可优化诊断准确性。T1加权图像擅长界定体内脂肪的分布和比例，因此在评估肢体综合征，包括血管畸形以及脂肪萎缩-脂肪代谢障碍情况时很有用。磁共振成像为有效的组织活检提供指导。它允许对软组织血管异常进行全面的治疗前评估。它是追踪儿童期软组织疾病自然病程的良好方式。
