J. SZKLARUK, P. R. BHOSALE, A. Balachandran, C. S. NG, E. P. TAMM, J. Ma DIAGNOSTIC RADIOLOGY, MD ANDERSON, HOUSTON, TX, United States Introduction MRI of the liver is routinely used in the staging and follow-up of oncologic patients. The current clinical practice is to use a 1.5T magnet. 3.0T MRI scanners offer superior signal to noise ratio (SNR) over the conventional 1.5T. There are limited ...

Background 3T MRI is advantageous to CMR as it offers higher SNR and better T1 contrast. Its slow clinical adoption is partly due to the lack of robustness in SSFP cine imaging [1]. Banding artifact in SSFP caused by main field inhomogeneity is common at 3T. Wideband SSFP [2] or prescans (shimming, frequency scout, etc.) are needed to avoid/ reduce the artifact, increasing patient scan time. We...

Background T2 mapping using T2-prepared SSFP at 1.5T has been shown to be sensitive to oedema in acute myocardial infarction[1]. At 3T, other studies have addressed the problem of the T2 prep module’s sensitivity to the increased B1 inhomogeneity[2]. However, a second problem is that the lengthened T1 at 3T can reduce the contrast between normal and oedematous myocardium, as well as introducing...

Purpose: Non-contrast magnetic resonance angiography (NC-MRA) is an alternative diagnostic tool for assessment of peripheral vascular disease in patients with impaired kidney function. While peripheral NC-MRA based on subtraction of two turbo-spin-echo acquisitions may benefit from increased signal-to-noise ratio at 3T, it also suffers from signal loss in the right femoral artery due to previou...

Introduction: The cerebral metabolic rate of oxygen (CMRO2) is an important indicator for brain function and disease, including stroke and tumor. CMRO2 can be quantified from measurements of venous oxygen saturation (Yv) and cerebral blood flow (CBF) in cerebral veins. Bulk susceptibility measurements based on gradient-echo phase maps have been used to estimate Yv in vivo at 3T [1]. Challenges ...

We describe MR imaging findings applying gradient echo (GRE) T2*-weighted and fluid-attenuated inversion recovery (FLAIR) MR images at 3T to three patients with hyperacute subarachnoid and intraventricular hemorrhage from ruptured aneurysms. Hyperacute subarachnoid and intraventricular hemorrhages (SAH and IVH) were more clearly visualized as an area of decreased signal intensity on GRE T2*-wei...

In nonperturbative regimes, the superfluid instability in two-dimensional Hubbard model can be described by an emergent BCS theory with small effective pairing constants. We compute couplings using a controlled bold-line diagrammatic Monte Carlo approach, which stochastically sums all skeleton Feynman diagrams dressed one- and two-particle channels to high expansion orders, map out resulting gr...