Magnetic Resonance Imaging Of Ventilation And Perfusion In The Lung


Methods, devices, and systems are disclosed for implementing a fully quantitative non-injectable contrast proton MRI technique to measure spatial ventilation-perfusion (VA/Q) matching and spatial distribution of ventilation and perfusion. In one aspect, a method using MRI to characterize ventilation and perfusion in a lung includes acquiring an MR image of the lung having MR data in a voxel and obtaining a breathing frequency parameter, determining a water density value, a specific ventilation value, and a perfusion value in at least one voxel of the MR image based on the MR data and using the water density value to determine an air content value, and determining a ventilation-perfusion ratio value that is the product of the specific ventilation value, the air content value, the inverse of the perfusion value, and the breathing frequency.

Download PDF
Document Preview
Document History
  • Publication: Sep 5, 2017
  • Application: Dec 7, 2011
    US US 201113992231 A
  • Priority: Dec 7, 2011
    US US 201113992231 A
  • Priority: Dec 7, 2011
    US US 2011/0063854 W
  • Priority: Dec 7, 2010
    US US 42055410 P

Download Citation

Sign in to the Lens