This is very promising, but work remains to be done to confirm or exclude lesions of common MS mimics, such as acute disseminate encephalomyelitis, as venocentric. A number of technical challenges must be addressed before the introduction of this technique as a complementary tool in current ...
MS: Facts You May Not Know; DAMAGE: Highlighted in Blue, an MRI Scan Reveals MS Lesions
(b) Raman spectrum of MGNs (excitation 633 nm), showing the D-band and G-band of graphitic carbon. (c) MR T2 relaxivity characterization. The r2 relaxivity value was obtained from the slope of the linear fit (red solid line) of the experimental T2 data. (d) Cell viability test ...
These findings are consistent with substantial focal inflammatory demyelination early on, with neurodegeneration in the deep grey matter being secondary to lesion accumulation8,9, related to the degeneration of tracts transected in MS lesions or concomitant inflammatory processes in the white matter and ...
Abnormal-appearing tumoral lumbar bone marrow was defined as nodular or diffuse lesions with low-signal intensity on SE T1-weighted images, and high-signal intensity on STIR and fat-suppressed gadolinium-enhanced T1-weighted MR images. All patients underwent a standardized DWSSFSE sequence in three ...
B–D ADC maps showing the ROIs used to determine ADCmin (three different visually lowest ADC regions, red), ADCmean (largest tumor cross-section measurement, green), and ADCnawm (normal-appearing white matter in contralateral centrum semiovale, yellow) Full size image Histopathologic analysis ...
目的 探讨以Transmantle征(T2WI或T2 FLAIR序列白质内向脑室方向延伸锥形高信号)为主要磁共振成像(Magnetic resonance imaging,MRI)征象的局灶性皮质发育不良(Focal cortical dysplasia,FCD)患儿术后癫痫控制情况,并分析诸因素对手术预后的影响。方法 回顾性分析2015年5月—2020年3月于山东大学齐鲁儿童医院经病理证实的56例...
MRI visualizes structural abnormalities like cerebral atrophy and ischemic pathology such as white matter lesions (WML) (Brant-Zawadzki et al., 1996), which have been associated with dementia (Oppedal et al., 2015). With MRI, patients can be serially monitored to identify increasing WML volumes...
5a, confirming that both in MS lesions and in NAWM, D(t) obeys the power-law relation in Eq. (1), with P-values = 0.042 and 0.012, respectively. Fig. 5: Time-dependent axial diffusivity D(t) and fit parameters (D∞, c) estimated in brain lesions (red) and normal-appearing...
Sodium (23Na) MRI non-invasively and directly probes sodium ions which play a key role in regulating osmotic pressure and ionic homeostasis at the cellular level9. It has been shown that total sodium concentration (TSC) is significantly higher in malignant breast lesions compared to benign lesions...