Phase direction: The phase direction in which the MRI acquisition is performed can influence the appearance and severity of flow artifacts. By altering the direction of flow relative to the imaging plane, it is possible to minimize the impact of these artifacts. In the case of knee imaging in ...
No flow was visualized in 25 readings of the AS; in 9 of those cases we expected flow to be present. Table 1. Conclusion Establishing qualitative patency between adjacent CSF compartments using MRI is possible with a modified ASL technique. This technique has excellent (above 80%) sensitivity,...
Since the introduction of cardiac gated gradient echo sequences in MRI, the noninvasive study of intracranial cerebrospinal fluid (CSF) pulsations became possible [2, 5]. Especially in hydrocephalic patients disturbances of CSF flow in the mesencephalic aqueduct may be of clinical importance in ...
Superb microvascular imaging (SMI) is a novel US imaging technique allowing the visualization of low velocity blood flow in small vessels. The essential technical aspect of this new US procedure is based on the fact that noise generated from motion artifacts can be suppressed. The images contain ...
(CGE)、尺寸排阻色谱(SEC)、分析超速离心(AUC)、场流分级(FFF)、沉降速度、UV光谱、差示扫描量热法、比浊法、浊度法、尺寸排阻-高效液相色谱法(SE-HPLC)、反相高效液相色谱(RP-HPLC)、电喷雾离子化串联质谱(ESI-MS)和串联RP-HPLC/ESI-MS、流场流分离技术(flowfield-flowfractionationtechnique)和静态和/或...
Flow compensation, a gradient pulse used for artifact reduction, often used to suppress cerebrospinal fluid (CSF) flow artifacts in spinal magnetic resonance imaging (MRI), can be switched off to make the CSF flow voids within syrinx (syringomyelia) and within aqueduct [normal pressure hydrocephalus...
Imaging techniques may be underutilised when clinicians are unaware of the technique or do not recognise its potential. Phase-contrast MR imaging (PC-MRI) is a rapid, simple and non-invasive technique that is sensitive to CSF flow. It de... SS Mbonane,S Andronikou - 《South African Journa...
To determine whether adjuvant testosterone-treatment modulates the CSF secretion rate, we quantified the relative CSF flow rate in the testosterone-treated obese rats versus their lean control counterparts with LI-COR live imaging. This swift technique relies on quantification of caudal flow of a fluor...
Strengths of the PRM technique are that it allows for investigation of proteins for which there are no antibodies available and that the specificity is very high. This is important in the search for new biomarkers and for verification of shotgun proteomic findings. A disadvantage, however, is ...
Lumbar puncture (LP), also known as spinal tap, is the most frequently used technique through which the restricted compartment of the subarachnoid space is accessed to sample cerebrospinal fluid. An LP can have both diagnostic and therapeutic indications. To perform an LP, the optimal length, siz...