1Institute of Radiology, Medical School Hannover, Hannover, Lower Saxony, Germany; 2Institute of Radiology, Hannover Medical School, Hannover, Lower Saxony, Germany; 3Clinic for Nuclear Medicine, Medical School Hannover, Hannover, Lower Saxony, Germany; 4Clinic of Pneumology, Medical School Hannover, Hannover, Lower Saxony, Germany
Dynamic contrast-enhanced (DCE) MR perfusion imaging and perfusion-weighted (pw) MR Fourier decomposition (FD) are compared to single-photon emission computed tomography (SPECT) ventilation/ perfusion (V/Q) scan as clinical reference standard for lung perfusion in patients with suspected chronic thromboembolic pulmonary hypertension (CTEPH). The lung segments of 13 patients were scored as segmental, subsegmental or no perfusion defect for the evaluated methods. In all patients CTEPH was diagnosed by the three methods. The analysis provided a good agreement of DCE MR perfusion imaging compared to SPECT and a moderate agreement of FD compared to SPECT.