A high-resolution fast spin-echo inversion-recovery sequence for preoperative localization of the internal globus pallidus

Academic Article


  • A fast spin-echo inversion-recovery (FSE-IR) sequence is described for its utility regarding surgical planning for patients with Parkinson's disease (PD) who are undergoing microelectrode-guided internal globus pallidus (GPi) ablation. Images from thirty-seven adult patients with PD were reviewed and visualization of the GPi, globus pallidus externa (GPe), and the intervening lamina was noted. High-resolution images were acquired from all patients despite the external hardware and the patients' movement disorder. In all cases, the conventional surgical trajectory, determined indirectly by a fixed measurement from the anteroposterior commissure line, was modified by the ability to visualize the GPi and optic tract directly. This sequence facilitated accurate stereotactic targeting.
  • Authors

    Published In

    Author List

  • Reich CA; Hudgins PA; Sheppard SK; Starr PA; Bakay RAE
  • Start Page

  • 928
  • End Page

  • 931
  • Volume

  • 21
  • Issue

  • 5