Abstract #2681

Evaluation of Kinematics and Image Quality of Thoracic Outlet during Humeral Elevation in Normal Volunteers Using 3D-MRI with Compressed Sensing

Manabu Arai^1,2, Taiki Nozaki², Saya Horiuchi², Takahiro Sato², Miki Hirano², Shigekazu Funada², Takeshi Hara³, Atsushi Tasaki⁴, Nobuto Kitamura⁴, Masahiro Jinzaki¹, and Yasuyuki Kurihara²

¹Department of Radiology, Keio University School of Medicine, Tokyo, Japan, ²Department of Radiology, St. Luke's International Hospital, Tokyo, Japan, ³Department of Intelligent Image Information, Gifu University School of Medicine, Gifu, Japan, ⁴Department of Orthopaedic Surgery, St. Luke's International Hospital, Tokyo, Japan

We performed 3D-MR imaging with compressed sensing on the thoracic outlet of 23 normal volunteers, comparing it with conventional 2D-MR imaging. The image quality score of 3D-PDWI with compressed sensing was significantly lower than that of 2D-PDWI. However, no significant difference in the image quality score of MRA with compressed sensing due to arm position was demonstrated. Subclavian arterial stenosis during humeral elevation was shown in 30.4% of asymptomatic subjects without gender predominance. 3D-MR imaging using compressed sensing enables us to evaluate the kinematics of the thoracic outlet, and may contribute to the diagnosis of TOS in clinical settings.

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.