MRIONLINE:磁敏感加权成像(20201209Susceptibility - Weighted Imaging - What and Why), 视频播放量 206、弹幕量 0、点赞数 6、投硬币枚数 0、收藏人数 9、转发人数 2, 视频作者 医学影像学英语, 作者简介 医学影像学英语的学习者、分享者、传播者、推广者,21年12月16
The signal intensity in MRI depends on the proton density, T1, T2 and T2 relaxation processes of any ensemble of the spins within each imaging elements (voxel). Another important contrast mechanism in MRI is signal loss caused by proton dephasing in the presence of coherent and incoherent flow...
What is the most likely diagnosis (T2-weighted MRI cervical spine)? Pyogenic myelitis [No authors listed] N Listed - 《Journal of Clinical Neuroscience》 被引量: 0发表: 2002年 What is an Optimal Diagnosis? Within diagnostic reasoning there have been a number of proposed definitions of a ...
Figure 2.Axial T2-weighted MRI through the body of the lateral ventricles, showing superior extension of a right middle cranial fossa lesion. The lesion is homogeneous, with no perceptible wall, no internal complexity, and CSF signal intensity. There is associated remodeling of the adjacent calvari...
Magnetic resonance imaging (MRI) is a common medical imaging methodology with high spatial resolution and can also describe different physiological and anatomical characteristics based on various sequences. For example, T2-weighted imaging (T2WI) can describe the anatomical structures of tumors and is,...
A 69-year-old female with probable CAA. MMSE score is 21. T2*-weighted image (a) and T2-weighted image (b) show hypointensity in the left parietal gyrus, indicating an intragyral hemorrhage (arrow). In addition, enlarged PVS (arrowheads) are observed around the intragyral hemorrhage on ...
Cardiac magnetic resonance (CMR) imaging is a fundamental imaging modality for the diagnosis of myocarditis [79], as described in the Lake Louise criteria. CMR allows for a noninvasive means of tissue characterization with the use of late gadolinium enhancement (LGE), T2-weighted imaging, extracel...
Background and Purpose—Infarct size on T2-weighted MRI correlates only modestly with outcome, particularly for small strokes. This may be largely because ... R Pineiro,ST Pendlebury,S Smith,... - 《Stroke》 被引量: 212发表: 2000年 Assessment of Cerebral Blood Flow and CO2 Reactivity After...
sequence, sus- ceptibility-weighted imaging (SWI), which has shown high sensitivity in detecting iron containing tissues and small veins due to their paramagnetic properties, has added value for these purposes particularly when co-reg- istered and mixed with standard pulse sequences such as T2-...
2D black-blood MRI Blood suppression is essential for achieving accurate delineation of the vessel wall, which would otherwise be compromised by smearing of the bright-blood lumen signal. Two-dimensional (2D) T2-weighted (T2w) spin-echo sequences have inherent blood suppression due to outflow ef...