Non-T1-weighted spin-echo MR imaging with contrast material: experimental and preliminary clinical assessment

To clarify the role of contrast-enhanced non-T1-weighted spin-echo (SE) MR imaging, phantom experiments and 20 clinical examinations were conducted. All of the SE pulse sequences demonstrated enhancement on gadopentetate dimeglumine solution phantoms. Enhancement effect was also observed on proton density-weighted and T2-weighted images in tumors. This property might be better recognized and utilized in selecting pulse sequences in routine MR examinations.