小儿血液系统常见疾病的骨髓MRI表现  

MRI Manifestation of Bone Marrow for the Common Disease of Blood System in Children

作　　者：叶滨滨[1] 范国光 陈丽英 董文翰[2] 杨丽梅 

机构地区：[1]中国医科大学第二临床学院放射科,沈阳市1100032 [2]中国医科大学第二临床学院儿科,沈阳市110003

出　　处：《中国医学影像学杂志》1999年第3期161-164,共4页Chinese Journal of Medical Imaging

摘　　要：目的：探讨小儿血液系统常见疾病的骨髓 ＭＲＩ 表现。材料和方法：贫血２１ 例（ 缺铁性３ 例；巨细胞性２ 例，出血性２ 例，溶血性１ 例，再障性１３ 例） ；白血病１４ 例。正常对照组２２ 例。用０．３５Ｔ ＭＲＩ 机，ＳＥ、ＳＴＩＲ 序列，椎体扫描。结果：正常组在ＳＴＩＲ 序列椎体边缘骨髓呈高信号，中心呈低信号。增生性贫血可见椎体边缘高信号区明显扩大，但仍为正常分布。再障贫血骨髓信号明显减低，椎体边缘高信号消失，但有４ 例可见点状高信号残存。白血病骨髓信号增高且混杂，椎体中心也见高信号，失去正常分布。结论：ＭＲＩ 对小儿血液系统疾病骨髓改变的评价有意义。Purpose: To evaluate MRI manifestation of bone marrow for the common diseases of the blood system in children. Materials and methods: 21 cases of anemia (including hypoferric anemia in 3 cases; macrocytic anemia in 2 cases; bleeding anemia in 2 cases; homolytic anemia in 1 case; aplastic anemia in 13 cases), 14 cases of leukemia were reported correlating with 22 cases of normal children. SE and STIR sequence images were obtained on 0.35 T MR device. Results: Peripheral high intensity and central low intensity of bone marrow at the marginal vertebrae appeared on STIR image in the normal children group. The more expansive area of high intensity with normal configuration at the margin of vertebrae was present in proliferative anemia; while apparent decrease in intensity of bone marrow combining with absence of high intensity at the margin of the vertebrae was present in aplastic anemia with exception for mottled high intensity remained in 4 cases. Miscellaneous high intensity of bone marrow and central vertebrae with abnormal configuration was present in leukemia. Conclusion: MRI plays an important role in the evaluation of bone marrow character of blood system disease in children.

关 键 词：血液系统疾病 儿童 NMR 成像 骨髓 

分 类 号：R725.5[医药卫生—儿科]