text: import cornerstone from 'cornerstone-core'
  
  
  import { mat4 } from 'gl-matrix'
  
  
  const originalSeriesElement = document.getElementById('cornerstone-target')
  const mprAxialSeriesElement = document.getElementById('axial-target')
  const mprCoronalSeriesElement = document.getElementById('coronal-target')
  const mprSagittalSeriesElement = document.getElementById('sagittal-target')
  