The article reports on the findings of neuroradiologists at the University of Cincinnati on the diagnosis of blood clots in the veins of the brain. The study showed that brain imaging approach that combines standard...
It is difficult for doctors to analyse them. 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 ...
Deep Learning Enables Reduced Gadolinium Dose for Contrast-Enhanced Brain MRI (Journal of Magnetic Resonance Imaging 2018) 这是一篇医学图像增强的论文,介绍了研究人员正在使用人工智能来减少MRI检查后留在体内的造影剂的剂量。 提出背景 钆(gá,gadolinium)是一种用于对比材料的重金属,可增强MRI上的图像,作为一...
Paramagnetic deoxyhemoglobin in venous blood is a naturally occurring contrast agent for magnetic resonance imaging (MRI). By accentuating the effects of this agent through the use of gradient-echo techniques in high yields, the authors demonstrate in vivo images of brain microvasculature with image ...
Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a well-established technique for studying blood–brain barrier (BBB) permeability that allows measurements to be made for a wide range of brain pathologies, including multiple sclerosis and brain tumors (BT). This latter application is...
By detecting focal blood-brain barier (BBB) breakdown, gadolinium (GD-DTPA) contrast-enhanced T1-weighted magnetic resonance imaging (MRI) allows assessmen... C N.,Silver,D C.,... - 《Journal of Neurology》 被引量: 144发表: 2001年 A comparison of Gd-BOPTA and Gd-DOTA for contrast-enha...
Purpose: We wished to assess the merits and weaknesses of postcontrast fat-suppression (FS) brain MR imaging in children for the evaluation of various enhancing lesions as compared with postcontrast conventional T1- weighted or magnetization transfer (MT) imaging. Materials and Methods: We reviewed...
【文献摘要:Patterns of Contrast Enhancement in the Brain and Meninges 脑与脑膜的强化类型】 头颅横断位对比增强技术在20世纪70年代中期用于CT,80年代中期用于MRI。强化类型有助于疾病的鉴别诊断。脑和脊髓的增强可使用血管内和血管外对比剂。轴...
Conventional time-of-flight (TOF) MRV is time consuming, with imaging for a single sequence taking many minutes. MRI was performed with a clinical 1.5-T scanner; conventional TOF MRV followed by CE-MRV was performed using a modified 3D first-pass MR angiography sequence. Ten control subjects ...
Functional MRI techniques such as perfusion imaging are being utilized for brain tumor imaging, based on the principle of increased tumor vascularity. Determination of a threshold value for rCBV on CE-MRI has shown predictive value for differentiating high- and low-grade cerebral tumors [99] and ...