Publications by authors named "Gracyn Campbell"
Background Context: Preoperative imaging for lumbar spine surgery often includes magnetic resonance imaging (MRI) for soft tissues and computer tomography (CT) for bony detail. While CT scans expose patients to ionizing radiation, whereas MRI scans do not. Emerging MRI techniques allow CT-like 3-dimensional (3D) visualization of bony structures, potentially removing the need for ionizing radiation from CT scans.
View Article and Find Full Text PDFIntroduction: T2 mapping can characterize peripheral neuropathy and muscle denervation due to axonal damage. Three-dimensional double echo steady-state (DESS) can simultaneously provide 3D qualitative information and T2 maps with equivalent spatial resolution. However, insufficient signal-to-noise ratio may bias DESS-T2 values.
View Article and Find Full Text PDFArticle Synopsis
- * A total of 40 adult patients were analyzed, and the images reconstructed with the new DL method showed significantly better signal-to-noise ratio and contrast between nerves and surrounding tissues compared to traditional methods.
- * Results indicated that the combination of DL and geometric image enhancement techniques led to improved visualization of smaller nerve branches, making it easier to identify nerve structures compared to standard imaging methods.
Background: Parsonage-Turner syndrome (PTS) is characterized by severe, acute upper extremity pain and subsequent paresis and most commonly involves the long thoracic nerve (LTN). While MR neurography (MRN) can detect LTN hourglass-like constrictions (HGCs), quantitative muscle MRI (qMRI) can quantify serratus anterior muscle (SAM) neurogenic changes.
Purpose/hypothesis: 1) To characterize qMRI findings in LTN-involved PTS.