Pulmonary ventilation-perfusion MR imaging in clinical patients |
| |
Authors: | Nakagawa T Sakuma H Murashima S Ishida N Matsumura K Takeda K |
| |
Institution: | Department of Radiology, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan. housya@clin.medic.mie-u.ac.jp |
| |
Abstract: | The purpose of this study was to evaluate the feasibility of comprehensive magnetic resonance (MR) assessment of pulmonary perfusion and ventilation in patients. Both oxygen-enhanced ventilation MR images and first-pass contrast-enhanced perfusion MR images were obtained in 16 patients with lung diseases, including pulmonary embolism, lung malignancy, and bulla. Inversion recovery single-shot fast spin-echo images were acquired before and after inhalation of 100% oxygen. The overall success rate of perfusion MR imaging and oxygen-enhanced MR imaging was 94% and 80%, respectively. All patients with pulmonary embolism showed regional perfusion deficits without ventilation abnormality on ventilation-perfusion MR imaging. The results of the current study indicate that ventilation-perfusion MR imaging using oxygen inhalation and bolus injection of MR contrast medium is feasible for comprehensive assessment of pulmonary ventilation-perfusion abnormalities in patients with lung diseases. |
| |
Keywords: | magnetic resonance imaging lung ventilation perfusion pulmonary embolism |
本文献已被 PubMed 等数据库收录! |
|