title: Quantification of lung perfusion blood volume (lung PBV) by dual-energy CT in pulmonary embolism before and after treatment: preliminary results.
abstract: The purpose was to investigate the quantification of lung perfusion blood volume (PBV) by dual-energy computed tomography (CT) in patients with pulmonary embolism (PE) before and after treatment. Twenty-five patients with PE underwent dual-energy CT angiography before and after treatment. In all 25 patients, pulmonary CT confirmed that there was no PE after treatment. This preliminary study demonstrated the possibility that quantification of lung PBV may reflect parenchymal arterial perfusion before and after treatment, including the compensatory increase of lung perfusion.
authors.affiliation: Department of Radiology, Nagasaki University School of Medicine, 1-7-1, Sakamoto, Nagasaki 852-8501, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Nagayama
authors.forename: Eijun
authors.initials: E
authors.lastname: Sueyoshi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Hayashida
authors.forename: Kazuto
authors.initials: K
authors.lastname: Ashizawa
authors.forename: Ichiro
authors.initials: I
authors.lastname: Sakamoto
authors.forename: Masataka
authors.initials: M
authors.lastname: Uetani
mesh_terms: D000368:Aged; D001783:Blood Flow Velocity; D001810:Blood Volume; D001811:Blood Volume Determination / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D055420:Perfusion Imaging / Q000379:methods; D010865:Pilot Projects; D011379:Prognosis; D011651:Pulmonary Artery / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D011652:Pulmonary Circulation; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging* / Q000503:physiopathology* / Q000628:therapy; D015900:Radiography, Dual-Energy Scanned Projection / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D016896:Treatment Outcome