Objective: To evaluate the value of MR signal intensity in pleural diseases.
目的:评价磁共振信号强度在胸膜疾病中的诊断价值。
Conclusion: MR signal intensity is of important significance in differentiating pleural diseases, SIR is the most useful one.
结论:磁共振信号强度在胸膜疾病鉴别诊断中有重要意义,其中SIR最具有诊断价值。
However, the changes of MR signal intensity of neurinoma are not distinguishable with those of meningioma and ependymoma in the spinal canal.
但椎管内神经鞘膜肿瘤的MR信号变化与脊膜瘤和室管腆窟无法区分。
Conclusion: the signal intensity and enhancing pattern of primary intracranial malignant lymphoma on MR images are of great value in the diagnosis and differential diagnosis.
结论:颅内原发恶性淋巴瘤的MR信号强度及增强方式对诊断和鉴别诊断具有重要价值。
Methods: tube flow phantoms which simulating the cerebral blood flow were established. Flow signal intensity of the steady flow in tubes was measured by MR phase-contrast cine technique.
方法:用磁共振相位对比电影法测定模拟脑血液流动的管状模型稳态流动下流体信号强度,并与相应的速率进行相关性分析后分别得出相应的转换函数关系。
On MR images, the necrotic center of the nodes will show intermediate signal intensity on T1-weighted images, low signal intensity on T2-weighted images, and will enhance with contrast.
MR影像上,在T1序列上中央坏死显示中度强度的信号,T2序列上呈低信号,增强扫描有强化。
Aim: To determine the time course of signal intensity changes and the apparent diffusion coefficient (ADC) abnormality on MR diffusion weighted imaging (DWI) after cerebral infarction.
目的:确定脑梗死磁共振弥散加权成像(DWI)信号改变和近似弥散系数(adc)的时间演变规律。
For TA-SPIO-labeled cells, MR images and relaxometry findings showed a 50%-90% decrease in signal intensity and a more than 40-fold increase in T2s.
对于TA-超顺磁性氧化铁标记的细胞,磁共振影像和弛豫时间的测量发现,信号强度减弱50%-90%,而T2弛豫增加40倍。
Methods 34 patients had pathology proven benign tumors in parotid, MR findings were retrospectively analysed, included the number position size shape intensity of signal of the focus.
方法34例腮腺良性肿瘤行MR扫描后与病理诊断作对照研究,MR分析包括病灶数目、部位、大小、形态、信号。
Spinal epidural hemangiomas can have various MR features, but common features (despite histopathologic type) include lobular contour, a rim of low T2 signal intensity, and solid hypervascularity.
脊椎硬膜外血管瘤在MRI上表现多样,但共同的特点(不管其组织病理类型)包括分叶状轮廓,T2序列上低信号环,实性的富血供病变。
Spinal epidural hemangiomas can have various MR features, but common features (despite histopathologic type) include lobular contour, a rim of low T2 signal intensity, and solid hypervascularity.
脊椎硬膜外血管瘤在MRI上表现多样,但共同的特点(不管其组织病理类型)包括分叶状轮廓,T2序列上低信号环,实性的富血供病变。
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