title: [Diagnostic yield of CT pulmonary angiography and venography for thromboembolic disease].
abstract: BACKGROUND
  CT pulmonary angiography is the diagnostic procedure of choice for non-massive pulmonary embolism.
  
  
  OBJECTIVE
  To assess the diagnostic yield for thromboembolic disease of CT pulmonary angiography and venography using a 64-slice multidetector tomography.
  
  
  METHODS
  Prospective study of patients with a clinical suspicion of thromboembolic disease, subjected to CT pulmonary angiography and venography. The presence and location of pulmonary thromboembolism, of isolated or concomitant deep venous thrombosis and of other significant radiological findings, were registered.
  
  
  RESULTS
  A 64-MDCT scanner was performed to 893 patients and thromboembolic disease was demonstrated in 240. Pulmonary thromboembolism was diagnosed in 218 patients. It was concomitant with deep venous thrombosis in 79 patients (36%) and isolated in the rest. Thirty five of the 218 patients with pulmonary thromboembolism had radiological evidence of right ventricular overload. Twenty two patients (10%) had an isolated deep venous thrombosis. In 65 patients with pulmonary thromboembolism (30%) a possibly new or old malignant lesion, was observed. Seventy one of 653 patients without evidence of thromboembolic disease had potentially pathological findings on CT.
  
  
  CONCLUSIONS
  The combined use of CT pulmonary arteriography and venography using a 64 MDCT scanner increases the diagnostic yield of the procedure for thromboembolic disease. It also allows the diagnosis of other related conditions, specially malignant tumors.
authors.affiliation: Departamentó de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile. andresen@med.puc.cl
authors.forename: Max
authors.initials: M
authors.lastname: Adresen
authors.forename: Alejandro
authors.initials: A
authors.lastname: González
authors.forename: Orlando
authors.initials: O
authors.lastname: Díaz
authors.forename: Luis
authors.initials: L
authors.lastname: Meneses
authors.forename: Mario
authors.initials: M
authors.lastname: Fava
authors.forename: Elisa
authors.initials: E
authors.lastname: Orlandini
authors.forename: Leticia
authors.initials: L
authors.lastname: Clede
authors.forename: Tomas
authors.initials: T
authors.lastname: Regueira
authors.forename: Ricardo
authors.initials: R
authors.lastname: Castro
mesh_terms: D000792:Angiography / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010690:Phlebography / Q000379:methods; D011446:Prospective Studies; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D013923:Thromboembolism / Q000000981:diagnostic imaging* / Q000453:epidemiology; D014057:Tomography, X-Ray Computed / Q000379:methods*