Precision Medicine—Targeted Therapy

To the Editor: Central nervous system pathologic and normal anatomy have long been regarded as essentially static when planning treatment—motion management was thought to be unimportant because physiologic processes such as respiration or peristalsis do not affect intracranial anatomy. Indeed, 3-dimensional rigid registrations between magnetic resonance imaging (MRI) and computed tomography (CT) scans can be carried out with high degrees of accuracy over months and years to permit the re-establishment of stereotactic coordinates for guidance and monitoring (1).

https://ift.tt/2OxGOvu