Role of pulmonary perfusion magnetic resonance imaging for the diagnosis of pulmonary hypertension: A review

Figure 4 Comparing computed tomography chest and dynamic contract enhanced perfusion magnetic resonance imaging for identifying perfusion defects in pulmonary hypertension patient with COPD. A: Chest computed tomography showing lobular emphysema in the lungs; B-D: Quantitative perfusion maps (anterior to posterior) showing heterogeneously reduced pulmonary blood flow, pulmonary blood volume and mean transit time respectively representing thromboembolic occlusion in respective pulmonary segments. Note on the right-hand side, quantitative scale from top to bottom showing higher to lower quantitative values. Citation: Ohno Y, Hatabu H, Murase K, Higashino T, Kawamitsu H, Watanabe H, Takenaka D, Fujii M, Sugimura K. Quantitative assessment of regional pulmonary perfusion in the entire lung using three-dimensional ultrafast dynamic contrast-enhanced magnetic resonance imaging: Preliminary experience in 40 subjects. J Magn Reson Imaging 2004; 20: 353-365 [PMID: 15332240 DOI: 10.1002/jmri.20137].