title: [Radionuclide pulmonary perfusion imaging in evaluating pulmonary hypertension in patients with rheumatic heart disease].
abstract: OBJECTIVE
  To evaluate the degree of pulmonary hypertension in patients with rheumatic heart disease using radionuclide pulmonary perfusion imaging.
  
  
  METHODS
  The pulmonary perfusion in 25 patients with rheumatic heart disease was examined using scintigram with macroaggregates of (99m)Tc-labeled human serum albumin (PPS) before and 7 days after operation. PPS was analyzed for (1) pulmonary perfusion steady time (PT), right upper and lower lung count ratio (RULR). The results were compared with those of catheterization examination during the operation.
  
  
  RESULTS
  The pulmonary arterial systolic pressure (PAs) and total pulmonary resistance (TPR) were (60 +/- 21) mm Hg and (421 +/- 106) dyn if PT > or = 20 seconds and RULR > or = 2; The PAs and TPR were (28 +/- 5) mm Hg and (188 +/- 28) dyn if PT < 20 seconds and RULR < 2. The PPS changed in most of the patients during early operation.
  
  
  CONCLUSIONS
  The degree of injury in pulmonary vascular in patients with rheumatic heart disease could be quantitatively analysed by PPS.
authors.affiliation: Department of Surgery, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100037, China.
authors.forename: Shi-wei
authors.initials: SW
authors.lastname: Pan
authors.forename: Sheng-shou
authors.initials: SS
authors.lastname: Hu
authors.forename: Qing-yu
authors.initials: QY
authors.lastname: Wu
authors.forename: Yun-hu
authors.initials: YH
authors.lastname: Song
authors.forename: Xue-mei
authors.initials: XM
authors.lastname: Wang
authors.forename: Rong-fang
authors.initials: RF
authors.lastname: Shi
authors.forename: Qi-bin
authors.initials: QB
authors.lastname: Yu
authors.forename: Ke-ming
authors.initials: KM
authors.lastname: Yang
authors.forename: Sheng
authors.initials: S
authors.lastname: Liu
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011652:Pulmonary Circulation; D011877:Radionuclide Imaging; D012214:Rheumatic Heart Disease / Q000150:complications*; D013599:Systole; D013668:Technetium Tc 99m Aggregated Albumin; D014655:Vascular Resistance
chemical_list: D013668:Technetium Tc 99m Aggregated Albumin