Patent ID: 11944424
Assignee: DUKE UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 1:
2. The method of claim 1, wherein the fitting is carried out with the 129Xe barrier resonance curve fitted as a Voigt line shape characterized by both a Lorentzian FWHM parameter and a Gaussian FWHM (FWHMG) (ppm) parameter and the 129Xe RBC resonance curve fitted using a Lorentzian line shape, wherein the diagnosing is carried out so that when RBC transfer defects are above a defined threshold along with when ventilation defects and/or barrier defects are below a defined threshold, in combination with when the corrected peak-to-peak amplitude of RBC amplitude oscillations is 7.9% or less, the subject is diagnosed as likely to have pre-capillary pulmonary hypertension, wherein the RBC transfer defects, the ventilation defects and the barrier defects are electronically automatically calculated from 129Xe Magnetic Resonance Imaging (MRI) gas exchange images of the lung or lungs of the subject, and wherein the corrected peak to peak amplitude of the RBC amplitude oscillations is carried out using the calculated RBC transfer defects.