Abstract #4304

Diffusion tensor imaging in human subjects wearing metallic orthodontic braces

Xinyuan Miao^1,2, Yuankui Wu^1,2,3, Dapeng Liu^1,2, Hangyi Jiang¹, Qin Qin^1,2, Peter C.M van Zijl^1,2, Jay J. Pillai^4,5, and Jun Hua^1,2

¹Neurosection, Division of MRI Research, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, United States, ²F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD, United States, ³Department of Medical Imaging, Nanfang Hospital, Southern Medical University, Guangzhou, China, ⁴Johns Hopkins University School of Medicine, Division of Neuroradiology, Russell H. Morgan Department of Radiology and Radiological Science, Baltimore, MD, United States, ⁵Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States

Metallic objects such as dental braces bring substantial susceptibility artifacts in MR images acquired using echo-planar-imaging (EPI) sequences. Here, we demonstrate that diffusion-prepared diffusion tensor imaging (DTI) with three-dimensional fast gradient-echo readout can significantly reduce susceptibility artifacts that are commonly seen in conventional spin-echo (SE) EPI DTI in the presence of metallic orthodontic braces.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.