FIG 4. Seat-belt deceleration vertical fracture of anterior aspect of second thoracic (T2) vertebral body. Multidetector CT in standard (A and C) and swimmer’s (B and D) position obtained by reformatted 0.6-mm-thick axial images then sagittally reconstructed. The superior mediastinum and soft tissues are more distinct in panel B than in panel A, whereas swimmer’s sagittal reconstruction (D) more sharply demarcates the fracture boundary and endplate defects (arrow). E, Proton density-weighted sagittal MR confirms the lower T2 endplate defect (arrow). F, Fat-suppressed T2-weighted sagittal MR confirms acuity of fracture on the basis of marrow edema (arrow).