title: [Ultrasound, computed tomography and laparoscopy. Efficacy in the detection of primary and metastatic hepatic tumors. Comparative study].
abstract: OBJECTIVE
  To compare ultrasound, computed tomography and peritoneoscopy in the diagnosis of primary and metastatic hepatic tumors.
  
  
  METHODS
  Prospective trial of a cohort patients during a year.
  
  
  METHODS
  Digestive Disease Department in a National referral Cancer Center.
  
  
  METHODS
  Forty five patients with intraabdominal tumors for pretreatment evaluation. Intervention; Ultrasonography, computed tomography and peritoneoscopy performed in a period of ten days.
  
  
  METHODS
  sensibility, specificity and efficiency comparison of results by Chi square test, with Yates correction (X2 Yates), measure of pre test and post test probabilities using Bayes theorem.
  
  
  RESULTS
  In hepatic humors, peritoneoscopy was the most sensitive, specificity was similar for the three procedures (p greater than 0.1), in the detection of hepatic metastases peritoneoscopy was the most sensitive 91.6% vs 50% (p less than 0.05) similar specificity and high positive predictive value for the three procedures, comparable with the post test probabilities.
  
  
  CONCLUSIONS
  In the detection of focal hepatic lesions, peritoneoscopy was the best method; in case of doubt, failure of non invasive procedures or the need of biopsy samples must be considered the procedure of choice.
authors.affiliation: Hospital Oncológico Padre Machado, Caracas, Venezuela.
authors.forename: C
authors.initials: C
authors.lastname: Gumina
authors.forename: R
authors.initials: R
authors.lastname: Monserat
authors.forename: M
authors.initials: M
authors.lastname: Bronstein
authors.forename: J
authors.initials: J
authors.lastname: Salazar
authors.forename: A M
authors.initials: AM
authors.lastname: Isern
authors.forename: C
authors.initials: C
authors.lastname: Fernández
authors.forename: M
authors.initials: M
authors.lastname: Salomón
authors.forename: R
authors.initials: R
authors.lastname: Palao
authors.forename: E
authors.initials: E
authors.lastname: Garnica
authors.forename: M J
authors.initials: MJ
authors.lastname: Sánchez
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D006801:Humans; D010535:Laparoscopy; D008113:Liver Neoplasms / Q000175:diagnosis*; D008875:Middle Aged; D009362:Neoplasm Metastasis; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
vernacular_title: Ultrasonido, tomografía computarizada y laparoscopia. Eficacia en la detección de tumores hepáticos primarios y metastásicos. Estudio comparativo.