MR Imaging of the Abdomen and Pelvis in Infants, Children, and Adolescents
MR Imaging of the Abdomen and Pelvis in Infants, Children, and Adolescents
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DOI：
10.1148/radiol.11101922
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发表时间：
2011-10-01
期刊：
影响因子：
19.7
通讯作者：
Jaramillo, Diego
中科院分区：
文献类型：
--
作者：
Darge, Kassa;Anupindi, Sudha A.;Jaramillo, Diego
磁共振 (MR) 成像的最新发展深刻改变了儿科腹部和盆腔疾病的研究。运动减少技术，例如具有增强重建功能的周期性旋转重叠平行线或 PROPELLER，已经在安静呼吸的情况下实现了可靠的成像。更快的成像序列可最大限度地减少伪影并实现更有效的研究。弥散加权成像在肿瘤疾病的评估中变得越来越重要，它可以描绘细胞数量增加的疾病，并有助于区分良性和恶性肿块。磁共振肠造影有助于观察肠腔内和肠外的病理状况。磁共振胰胆管造影可以描述胰腺和胆道异常的先天性和后天性原因。磁共振尿路造影是一种有效的一站式评估结构性尿路异常和肾功能的技术。三维采集允许从多个角度对结构进行体积显示。专门的技术可以分别对溶血性贫血和肥胖儿童内脏中的铁和脂肪进行定量。本文介绍了当前对婴儿、儿童和青少年进行和优化腹部和骨盆 MR 成像的技术和策略，并描述了重要的实际应用。
Recent developments in magnetic resonance (MR) imaging have profoundly changed the investigation of abdominal and pelvic disease in pediatrics. Motion reduction techniques, such periodically rotated overlapping parallel lines with enhanced reconstruction, or PROPELLER, have resulted in reliable imaging with quiet breathing. Faster imaging sequences minimize artifact and allow for more efficient studies. Diffusion-weighted imaging has become increasingly important in the evaluation of neoplastic disease, depicting disease with increased cellularity and helping to differentiate benign from malignant masses. MR enterography helps visualize intra-and extraluminal bowel pathologic conditions. MR cholangiopancreatography can depict congenital and acquired causes of pancreatic and biliary abnormalities. MR urography is an effective technique for a one-stop-shop evaluation of structural urinary tract abnormality and renal function. Three-dimensional acquisitions allow volumetric display of structures from multiple angles. Specialized techniques allow quantification of iron and fat in the viscera in children with hemolytic anemia and obesity, respectively. This article covers current techniques and strategies to perform and optimize MR imaging of the abdomen and pelvis in infants, children, and adolescents and describes important practical applications.