Journal: Nmr in Biomedicine

Article Title: Time‐encoded golden angle radial arterial spin labeling: Simultaneous acquisition of angiography and perfusion data

doi: 10.1002/nbm.4519

Figure Lengend Snippet: Subtracted ASL signal at seven postlabeling delay time points for 10 slices. The top part shows the angiographic phases and the bottom part shows the perfusion phase, which was smoothed post hoc using a Gaussian filter in MATLAB

Article Snippet: Perfusion images were smoothed post hoc with a 3‐mm Gaussian kernel in MATLAB R2019B.

Techniques:

Journal: PLoS ONE

Article Title: Iterative Cross-Correlation Analysis of Resting State Functional Magnetic Resonance Imaging Data

doi: 10.1371/journal.pone.0058653

Figure Lengend Snippet: In (A) and (B), the DMNs obtained with different initial seed regions of interest (ROIs) using sCCA (A) and siCCA (B) are displayed in two axial slices ( z = +30 and −27 for the Philips 3.0 T dataset; z = +30 and −21 for the Siemens 1.5 T dataset). The siCCA-derived DMNs are shown in additional axial slices in (C). White arrows and asterisks indicate the regions with different peak locations (PHG, temporal poles and thalamus) and distinct regions (a ACC/caudate/thalamus cluster for Philips 3.0 T and bilateral middle OFC for Siemens 1.5 T) in the two datasets respectively. The VBS net index depicting the similarity among the DMNs obtained with different initial seed regions of interest was plotted in (D). The abscissa label in (D) describes the initial seed ROIs being compared. The similarity between the siCCA-derived DMN and the sCCA-derived DMNs with different initial seed ROIs was evaluated in (E). Please refer to the Selection of Initial seed ROIs section for definitions of the abbreviations for the seed ROIs.

Article Snippet: The remaining volumes (i.e., 210 for Philips 3.0 T dataset and 170 for Siemens 1.5 T dataset) were put into subsequent processing procedures, including slice timing and head motion corrections, spatial normalization to the standard Montreal Neurological Institute (MNI) space (i.e., all data resampled to a voxel size of 3 mm×3 mm×3 mm), spatial smoothing with a 6-mm full width at half maximum (FWHM) isotropic Gaussian kernel, removal of linear drift and temporal band-pass filtering (0.01–0.08 Hz).

Techniques: Derivative Assay, Selection