Jan Fritz

Paweena U-Thainual2
Aaron J Flammang2
2Paweena U-Thainual
2Aaron J Flammang
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Magnetic resonance (MR) neurography - guided nerve blocks and injections describe a techniques for selective percutaneous drug delivery, in which limited MR neurography and interventional MR imaging are used jointly to map and target specific pelvic nerves or muscles, navigate needles to the target, visualize the injected drug and detect spread to(More)
Magnetic resonance (MR)-guided spine injections describe techniques for selective spine injection procedures, in which MR imaging is used to visualize spinal targets and needle placement, monitor the injected drugs, and detect spread to potentially confounding nearby structures. The introduction of clinical high-field wide-bore MR imaging systems has(More)
OBJECTIVE The purpose of this study was to prospectively evaluate the accuracy of an augmented reality image overlay system in MRI-guided spinal injection procedures. MATERIALS AND METHODS An augmented reality prototype was used in conjunction with a 1.5-T MRI system. A human lumbar spine phantom was used in which 62 targets were punctured to assess the(More)
Interventional magnetic resonance (MR) neurography is a minimally invasive technique that affords targeting of small nerves in challenging areas of the human body for highly accurate nerve blocks and perineural injections. This cross-sectional technique uniquely combines high tissue contrast and high-spatial-resolution anatomic detail, which enables the(More)
PURPOSE To evaluate the feasibility of magnetic resonance imaging (MRI)-guided vertebroplasty at 1.5 Tesla using augmented reality image overlay navigation. MATERIALS AND METHODS Twenty-five unilateral vertebroplasties [5 of 25 (20%) thoracic, 20 of 25 (80%) lumbar] were prospectively planned in 5 human cadavers. A clinical 1.5-Teslan MRI system was used.(More)
  • Richard T Bedea, John G Bruhn, Ann Marie Ellis, Sarah C Brabant, Steven R Couch, Barry Glassner +56 others
  • 2013
The Clinical Sociology Review is published by Jednota Press, in association with the Sociological Practice Association, a professional organization of clinical and applied sociologists. Abstracts of all articles appear in Sociological Abstracts and selected abstracts appear in Social Work Research and Abstracts Clinical sociology involves the creation of(More)
PURPOSE A clinical augmented reality guidance system was developed for MRI-guided musculoskeletal interventions Magnetic Resonance Image Overlay System (MR-IOS). The purpose of this study was to assess MRI compatibility, system accuracy, technical efficacy, and operator performance of the MR-IOS. METHODS AND MATERIALS The impact of the MR-IOS on the MR(More)
PURPOSE To perform in vitro assessment of needle artifacts with an interactive three-dimensional (3D) near-real-time magnetic resonance (MR) fluoroscopy system for musculoskeletal interventions in a 1.5-T open-bore magnet. MATERIALS AND METHODS One MR-compatible titanium needle, one MR-compatible Inconel (nickel-chromium superalloy) needle, and one(More)
We report a case of a 33-year-old Caucasian male who presented with myocardial infarction and a right atrial mass. Coronary catheterization demonstrated a right coronary aneurysm. In this report, we describe magnetic resonance (MR) imaging findings of a right coronary artery aneurysm with thromboembolism formation, resulting in inferior myocardial(More)
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