title: Extracardiac intrathoracic abnormalities demonstrated by Tc-99m RBC gated blood pool imaging.
abstract: In addition to intrathoracic great vessel abnormality, pericardial effusion, and splenomegaly, extracardiac intrathoracic abnormalities were found in 12 of 210 patients' 99mTc red blood cell (RBC) gated cardiac blood pool imagings. These abnormalities, including five cases of absent pulmonary perfusion due to tumor mass, four of pleural effusion, two of pneumothorax, and one of left lung mass attenuation, were confirmed with concurrent or subsequent chest radiography, chest CTs, or biopsy. Pulmonary blood pool activity is normally seen on both sides in both anterior and left anterior oblique views; decreased or absent perfusion on either side or in part of the lung may indicate chest/pulmonary pathologies. Although pulmonary and thoracic wall lesions are not frequently seen, such incidental findings during gated cardiac blood pool imagings can lead to further study for these clinically unsuspected lesions and may benefit the patient.
authors.affiliation: Nuclear Medicine Service Radiology, Veterans Administration Medical Center, Lexington, KY.
authors.forename: W J
authors.initials: WJ
authors.lastname: Shih
authors.forename: U Y
authors.initials: UY
authors.lastname: Ryo
authors.forename: V
authors.initials: V
authors.lastname: Stipp
authors.forename: A
authors.initials: A
authors.lastname: Hotze
authors.forename: H J
authors.initials: HJ
authors.lastname: Biersack
mesh_terms: D000368:Aged; D004912:Erythrocytes; D015637:Gated Blood-Pool Imaging; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D010996:Pleural Effusion / Q000000981:diagnostic imaging; D011030:Pneumothorax / Q000000981:diagnostic imaging; D011652:Pulmonary Circulation / Q000502:physiology; D013670:Sodium Pertechnetate Tc 99m; D014057:Tomography, X-Ray Computed
chemical_list: D013670:Sodium Pertechnetate Tc 99m