EXAM:MRI BRAIN without and with contrast 40/5000 源语言: 英语 目标语言: 简体中文 结果(简体中文) 1: [复制] 考试:没有和有对比的MRI脑 结果(简体中文) 2:[复制] 考试:无和对比的MRI大脑 结果(简体中文) 3:[复制] 无脑磁共振造影其它语言...
Comparison of CT and MRI, with and without Contrast Enhancement, in the Detection of Brain TumorsMagnetic resonance imaging (MRI) as a clinical investigation became available in the early 1980s. Since then this method has proven to be a valuable additional diagnostic tool in the recognition and ...
By increasing the contrast of an image, it will be easy for analysing because of detailed information. This increase in contrast can be done by number of ways in image processing. This paper compares different methods of enhancement of brain MRI using histogram based techniques. 展开 ...
Objective To study the brain small metastatic focus from primary lesion of the lung by means of MR imaging with contrast enhanced magnetization transfer (MT) Methods SE T 1WI was obtained before and after the administration of Gd DTPA (0 1 mmol/kg) with and without MT in 172 lesions of ...
INTRODUCTION: The aim of this study is to investigate perfusion characteristics of brain arteriovenous malformation (AVM) by means of MRI perfusion-weighted imaging (PWI). METHODS: Forty-three patients with brain AVM were prospectively included and investigated by PWI-MRI. Diagnosis of type of diseas...
Multimodal machine learning studies show promise in brain aging23; however, most rely on structural magnetic resonance imaging (MRI), overlooking brain network dynamics. Complex spatiotemporal dimensions can be tracked with spatial accuracy through functional magnetic resonance imaging (fMRI) and with mill...
In H(x), it can be assumed that the highest intensity peaks are also located around x = μ because the large number of pixels have large influence on the mean value and the concavities surrounding these peaks are often in contrast with the convex part of P(x)27. Therefore, we ...
Dynamic contrast-enhanced MRI (DCE-MRI) using a standard dose of a gadolinium-based contrast agent (GBCA) is presently the most promising technique for quantitative imaging of subtle leakage [86] and has been applied in several studies of cSVD and related conditions [86], [88], [89], [90...
Using 3D VASO imaging for fMRI with CBV contrast (rather than BOLD) at 0.39 to 0.45 mm isotropic resolution showed reproducible cortical layer-dependent functional activity, revealing laminar functional organization in the brain. Due to the Nyquist theorem, conventional 0.8 mm resolutions cannot...
Magnetization-transfer MRI provides proton-density contrast in brain while saturating extracellular free water protons.(a)Comparison of M0map (M0), proton-density-weighted MRI with MT (α15MT), R1map (R1), T1-weighted MRI without (α70) and with MT (α70MT), MT ratio map (α70MTR).(...