Abstract #4181

Knee osteochondral junction imaging using a 3D dual adiabatic inversion recovery ultrashort echo time cones (3D DIR-UTE-cones) sequence at 3T

Alecio F. Lombardi^1,2, Zhao Wei¹, Hyungseok Jang¹, Saeed Jerban¹, Lillian Gong¹, Jiang Du¹, Eric Y. Chang^1,2, and Ya-Jun Ma¹

¹Radiology, University of California, San Diego, CA, United States, ²Radiology Service, Veterans Affairs, San Diego, CA, United States

To overcome the limitations of imaging short T2/T2* tissues with conventional MRI and increase contrast between the osteochondral junction and adjacent tissues, we developed a 3D dual adiabatic inversion recovery prepared ultrashort echo times cones (3D DIR-UTE-Cones) sequence for volumetric imaging at a 3T scanner. We expected the proposed DIR-UTE-Cones sequence to generate higher OCJ contrast than the IR-FS-UTE Cones, especially in between OCJ and fat.

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