title: Redistributed regional ventilation after the administration of a bronchodilator demonstrated on xenon-inhaled dual-energy CT in a patient with asthma.
abstract: We report here on the redistributed regional ventilation abnormalities after the administration of a bronchodilator and as seen on xenon-inhaled dual-energy CT in a patient with asthma. The improved ventilation seen in the right lower lobe and the decreased ventilation seen in the right middle lobe after the administration of a bronchodilator on xenon-inhaled dual-energy CT could explain a positive bronchodilator response on a pulmonary function test. These changes may reflect the heterogeneity of the airway responsiveness to a bronchodilator in patients with asthma.
authors: Department of Radiology and the Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 138-736, Korea. hwgoo@amc.seoul.kr
authors: Hyun Woo
authors: HW
authors: Goo
authors: Jinho
authors: J
authors: Yu
references: Radiographics. 2010 May;30(3):685-98
references: 20462988
references: Radiology. 2010 Jun;255(3):790-8
references: 20501716
references: Pediatr Radiol. 2008 Oct;38(10):1113-6
references: 18542942
references: Radiology. 2009 Feb;250(2):567-75
references: 19188325
references: Radiology. 2008 Aug;248(2):615-24
references: 18641254
references: Pediatr Radiol. 2010 Sep;40(9):1490-7
references: 20411254
references: Acad Radiol. 2008 Jun;15(6):799-808
references: 18486015
references: Invest Radiol. 2010 Jun;45(6):354-61
references: 20404734