2 citations · 4 across the 6 of their papers we have counts for
6 papers
Optimizing Variable Flip-Angles in Magnetization-Prepared Gradient Echo Sequences for Efficient 3D-T1rho Mapping
Marcelo V W Zibetti, Hector L. De Moura, Mahesh B. Keerthivasan +1
Purpose: To optimize the choice of the flip-angles of magnetization-prepared gradient echo (MP-GRE) sequences for improved accuracy, precision, and speed of 3D-T1rho mapping. Metho…
A Contrast Synthesized Thalamic Nuclei Segmentation Scheme using Convolutional Neural Networks
Lavanya Umapathy, Mahesh Bharath Keerthivasan, Natalie M. Zahr +2
Thalamic nuclei have been implicated in several neurological diseases. WMn-MPRAGE images have been shown to provide better intra-thalamic nuclear contrast compared to conventional…
A Comparison of Deep Learning Convolution Neural Networks for Liver Segmentation in Radial Turbo Spin Echo Images
Lavanya Umapathy, Mahesh Bharath Keerthivasan, Jean-Phillipe Galons +4
Motion-robust 2D Radial Turbo Spin Echo (RADTSE) pulse sequence can provide a high-resolution composite image, T2-weighted images at multiple echo times (TEs), and a quantitative T…
Automated Thalamic Nuclei Segmentation Using Multi-Planar Cascaded Convolutional Neural Networks
Mohammad S Majdi, Mahesh B Keerthivasan, Brian K Rutt +3
A cascaded multi-planar scheme with a modified residual U-Net architecture was used to segment thalamic nuclei on conventional and white-matter-nulled (WMn) magnetization prepared…
Quantitative T2 Estimation Using Radial Turbo Spin Echo Imaging
Mahesh B Keerthivasan, Ali Bilgin, Maria I Altbach
There has been increased interest in the quantitative characterization of tissues based on T2 in abdominal imaging. Techniques based on spin-echo or turbo spin-echo sequences are t…
T2-weighted Spine Imaging using a Single-Shot Turbo Spin Echo Pulse Sequence
Mahesh Bharath Keerthivasan, Blair Winegar, Jennifer L Becker +1
T2 weighted imaging of the spine is commonly performed using fast spin echo (FSE/TSE) based sequences, resulting in long scan times and vulnerability to motion artifacts. While sin…