The objective of this work was to determine whether a 3D gradient echo-based mDIXON T1-weighted sequence can replace a TSE-based mDIXON sequence in the evaluation of bone and musculoskeletal soft tissue lesions. Read More

Meeting name: IPR 2016 Conjoint Meeting & Exhibition , 2016

Authors: Peterson Michael, Patel Mittun, Dance Logan, Keehn Brian, Pokorney Amber, Barnes Craig

Keywords: mDixon, Gradient Echo, MRI Techniques, mDixon FFE, mDixon TSE

Radiologists have classically been taught the imaging findings of skeletal “Don’t touch lesions” on radiographs. The radiologist's goal is to best characterize these boney lesions and avoid tissue biopsy, especially since some bone lesions are misleading when viewed histologically, with nonaggressive lesions appearing aggressive. Many of these classical “Don’t touch lesions” are now being further evaluated with contrast enhanced magnetic resonance imaging (MRI). MRI findings of these radiographically classical lesions are not as well understood by radiologists with less MRI experience. We will provide an education exhibit to display MRI and corresponding radiographic appearances of characteristic “Don’t touch lesions”. Read More

Meeting name: IPR 2016 Conjoint Meeting & Exhibition , 2016

Authors: Keehn Brian, Patel Mittun, Peterson Michael, Dance Logan, Biyyam Deepa, Pokorney Amber, Barnes Craig

Keywords: Don't touch lesions, benign bone lesions

3D mDIXON Gradient Echo (GRE) technical superiority has already been established: improved fat saturation, faster acquisition time, high spatial resolution, and volumetric data acquisition allowing for a comprehensive multiplanar and 3D post-contrast evaluation of vessels and soft tissue lesions. Vascular malformation imaging requires large field of view images that can adversely affect fat saturation, is frequently performed with a non-sedated patient resulting in motion artifact, and requires higher spatial resolution to better characterize a lesion and evaluate lesion extent. Additionally the interventional radiologists at our institution prefer 3D post-contrast imaging to assist in treatment planning. We believe that this sequence is well suited for vascular malformation MRI imaging. The primary purpose is to illustrate the clinical utility and superior image quality of the 3D mDIXON GRE sequence over more conventional mDIXON TSE sequence through a series of cases of a variety of vascular malformations in different body regions. The secondary purpose of this presentation is to validate the clinical superiority of this sequence through a blinded reviewer comparison to the more conventional mDIXON TSE sequence. Read More

Meeting name: IPR 2016 Conjoint Meeting & Exhibition , 2016

Authors: Dance Logan, Keehn Brian, Patel Mittun, Pokorney Amber, Peterson Michael, Aria David, Barnes Craig, Bailey Smita

Keywords: vascular malformation, MRI, water fat imaging