Quantification of SNR and g-factor for parallel MRI: universal application to image-based and k-space-based image recnstructions. Proc Int Soc Magn Reson Med 2008;16:p1295.Robson PM,Grant AK,Madhuranthakam AJ, et al.Quantification of SNR and g-factor for parallel MRI: Un...
Retained g-factor maps (1/g) were computed for the combination of several in-plane accelerations (along the anterior–posterior phase encode direction) with different multiband acceleration factors, using coil sensitivity maps estimated from the fully sampled data using ESPIRiT79and measured noise-covar...
其中q1和q2各自独立地是h、och3、co2h或ch2co2g4,g4是h、直链或支链结构的c1至c12取代或未取代的烷基基团或peg基团(-ch2ch2o-)n(n=1–12),q3是h、直链或支链结构的c1至c12取代或未取代的烷基基团或peg基团(-ch2ch2o-)n(n=1-12),q4和q5各自独立地是h、och3、co2h或者直链或支链结构的取代或未取...
(1)R2弛豫定量方法已在多国获得监管批准,且已在1.5T下得到了多中心多平台验证,但在3T下还没有。 (2)R2弛豫定量方法适用于低至高严重程度的铁过载,但不适用于LIC高于40 mg/g(700 μmol/g)的定量 (3)基于实施成本和采集时间,如果不能使用R2*弛豫定量方法,则应考虑使用R2弛豫定量方法。 3.3 R2*弛豫定量方...
称取46mg D03A-PEG-EBP,溶解于5mL水中,等完全溶解后,加过量Gd (OAc )3,滴加 0.01N NaOH调节pH至5.5~6.0后,50 °C下揽拌反应4她,用邸TA二钟除去游离的Gd3%制成Gd-D03A- 阳G-邸P。[0033] 实施例5:p-SCN-Bn-D03A(2-[(4-异硫氯基苯基)甲基]-D03A)的合成[0034] 1.5g D03A-S叔下基醋溶入...
Mandeville, J. B., B, G. Jenkins, et al. (2001). "Regional sensitivity and coupling of BOLD and CBV changes duringstimulation of rat brain." Magn Reson Med 45(3): 443-7. Morcuende, S., C. A. Gadd, et aJ. (2003》"Increased neurogenesis and brain-derived neurotrophic factor in ...
measured CT attenuation [Hounsfield units (HU)] can be observed in normal and infarcted myocardium in the arterial first pass, indicating that no absolute HU values can be defined, but the relative measurement of normal and infarcted tissue is the decisive factor [37]. Wall thinning of the ...
ETL(echo train length;turbo factor): 180°脉冲次数 称为回波链长度或快速系数。 FSE 脉冲序列 〖3〗FSE 脉冲序列的优点及缺点 1 FSE图像与常规SE非常接近,但扫描时间显著缩短。 SE的扫描时间=TR×相位编码次数×激励次数 (number of excitations,NEX) FSE的扫描时间=TR ×相位编码次数/快速系数× NEX 2 ...
Then a model is fitted to the signal and a set of parameters can be obtained for each voxel in the image—either for signal representations (e.g. DT-MRI) (Basser et al., 1994b) or modelling (Stanisz et al., 1997). These parameters are related to the microstructural properties of ...
S01.222: coagulation factor G (Tachypleus),Serine Proteasehorseshoe crab activated S09.007: fibroblast activation protein alphaSerine ProteaseHuman subunit S01.154: pancreatic endopeptidase ESerine ProteaseHuman M17.001: leucyl aminopeptidase (animal)Metallo ProteaseHuman ...