国际医学放射学杂志
國際醫學放射學雜誌
국제의학방사학잡지
INTERNATIONAL JOURNAL OF MEDICAL RADIOLOGY
2014年
3期
238-241
,共4页
磁共振成像%动态增强%定量%头颈部%肿瘤
磁共振成像%動態增彊%定量%頭頸部%腫瘤
자공진성상%동태증강%정량%두경부%종류
Magnetic resonance imaging%Dynamic contrast-enhanced%Quantification%Head and neck%Neoplasm
动态增强MRI基于小分子对比剂在灌注程度和渗透性不同的组织中分布不同而引起信号变化进行成像，常用T1WI扫描序列如快速三维容积内插屏气检查（VIBE）、肝脏快速容积采集（LAVA）序列、时间分辨随机轨道成像（TWIST）。这些序列各有优缺点。动态对比增强MR（DCE-MRI）原始图像经过后处理，可以进行定性、半定量、定量分析。定量分析根据不同的参数值，对肿瘤进行诊断、鉴别诊断，肿瘤分级及疗效评价等。就定量DCE-MRI在头颈部肿瘤中的应用进展进行综述。
動態增彊MRI基于小分子對比劑在灌註程度和滲透性不同的組織中分佈不同而引起信號變化進行成像，常用T1WI掃描序列如快速三維容積內插屏氣檢查（VIBE）、肝髒快速容積採集（LAVA）序列、時間分辨隨機軌道成像（TWIST）。這些序列各有優缺點。動態對比增彊MR（DCE-MRI）原始圖像經過後處理，可以進行定性、半定量、定量分析。定量分析根據不同的參數值，對腫瘤進行診斷、鑒彆診斷，腫瘤分級及療效評價等。就定量DCE-MRI在頭頸部腫瘤中的應用進展進行綜述。
동태증강MRI기우소분자대비제재관주정도화삼투성불동적조직중분포불동이인기신호변화진행성상，상용T1WI소묘서렬여쾌속삼유용적내삽병기검사（VIBE）、간장쾌속용적채집（LAVA）서렬、시간분변수궤궤도성상（TWIST）。저사서렬각유우결점。동태대비증강MR（DCE-MRI）원시도상경과후처리，가이진행정성、반정량、정량분석。정량분석근거불동적삼수치，대종류진행진단、감별진단，종류분급급료효평개등。취정량DCE-MRI재두경부종류중적응용진전진행종술。
The dynamic contrast-enhanced MRI (DCE-MRI) images were generated according to the signal changes aroused by the different perfusion and permeability of micro-molecule contrast agents in tissues. The common T 1WI sequences include volumetric interpolated breathhold examination (VIBE), liver acquisition with volume acceleration (LAVA), time-resolved angiography with interleaved stochastic trajectories (TWIST). The qualitative, semi-quantitative and quantitative conclusions could be drawn after the post-processing of the original DCE-MRI images. Among them, the quantitative analysis was conducted according to different parameters, and then was applied in the diagnosis, differentiate diagnosis, and the classification of tumors and tumors’ therapeutic evaluations. In this review we summarized the applications of the quantitative DCE-MRI in the head and neck neoplasms.
