The pH enh data of rodent stroke brain demonstrated that the lesion/normal tissue contrast was maximized for an RF saturation power pair of 0.5 μT at 2.0 ppm and 1.0 μT at 3.6 ppm, whereas an optimal contrast‐to‐variation ratio (CVR) was obtained with a 0.7 μT saturation at 2.0 ...
ap(feet–eriirn)ttDheenGsEeρ region at the bottom of the tumor area (black arrow; (g)), which is not visible in the GdCE-T1w image (b). As the origin of the DGE contrast is still under discussion1–11, the presented technique does not only form a simple and robust diagnostic ...
We describe an analysis method that characterizes the correlation between coupled time-series functions by their frequencies and phases. It provides a unified framework for simultaneous assessment of frequency and latency of a coupled time-series. The an
While altered BBBP can impact patient recovery, it is not routinely assessed during the workup of acute ischemic stroke (AIS). We study the effectiveness of the non-contrast MRI sequences diffusion-prepared pseudocontinuous arterial spin labeling (DP-pCASL) and Neurite Orientation Dispersion and ...
Dynamic susceptibility contrast (DSC) perfusion imaging was performed as previously described [24], with a T2*W single-shot gradient echo-EPI sequence (1.7 × 2.3 × 5.0 mm3). Whole-brain coverage was obtained using these parameters. PET scanning was performed on a Discovery ST ...
No animal studies were found that assessed the correspondence between the T1w/T2w ratio, R2*, qihMT, SyMRI, or mcDESPOT and myelin histology (Table 1), whereas no human studies were found that assessed the correlation between the T1w/T2w ratio, ihMTR, qihMT, UTE, mcDESPOT, or g-...
CNNs are particularly well suited for image data due to their ability to automatically and adaptively learn spatial hierarchies of features from images. In multi-contrast MRI segmentation, CNNs have been used to combine information from different MRI contrast methods (e.g., T1w, or T2w or ...
Although slightly inferior in performance, the approach published by Preetha et al. [39], may have a potentially significant clinical impact by reducing the necessity of contrast administration for serial scans. The authors generated post-contrast𝑇1T1w synthetic MR images from pre-contrast𝑇1T1...
All patients over 60 yrs who will be receiving contrast, must have a creatinine & BUN or GFR within six weeks of exam. If RENAL FAILURE (Creatinine over 1.8)-ORDER EXAM WITHOUT CONTRAST. Please provide any other relevant clinical information; For Infection & Tumors, please provide type.
A magnetic resonance imaging system and method for detecting blood flow abnormalities according to the time delay for the arrival of a bolus of a MR contrast agent into localized regions as observed i