MR tractography predicts visual field defects following temporal lobe resection.
case_report · Level V
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Abstract
A superior homonymous quadrantanopia is a well recognized complication of anterior temporal lobe resection and occurs because of disruption of the Meyer loop, the anterior part of the optic radiation. The authors used diffusion tensor imaging tractography to visualize the optic radiation before and after surgery, demonstrating the disruption of Meyer loop in a patient who developed a quadrantanopia. Preoperative imaging of the optic radiation will be useful in predicting visual field defects following temporal lobe resection.
Medical subject headings
- Diffusion Magnetic Resonance Imaging
- Hemianopsia
- Neurosurgical Procedures
- Postoperative Complications
- Temporal Lobe
- Visual Pathways