title: [Computed tomography guided fine needle aspiration biopsies].
abstract: Computed tomography (CT) allows the performance of fine needle aspiration biopsies in situations in which ultrasound or conventional X rays do not correctly visualize the lesion or the needle tract. One hundred four patients with a clinical suspicion of neoplasia were subjected to CT guided percutaneous aspiration biopsies in a lapse of 6 years. The most frequently biopsied organs were the lung (39.5%), liver and gallbladder (20.2%) and pancreas (15.4%). Forty nine percent of procedures were performed in the thorax and 51% in the abdomen. Of 51 patients with suspicion of thoracic cancer, there was only one false negative and no false positive results, with an overall accuracy of 98%. For abdominal procedures, there were no false positive results, although there were 6 false negative results, specially for pancreatic or retroperitoneal lesions. Overall accuracy for abdominal procedures was 88%. It is concluded that CT guided fine needle biopsy is a safe and accurate method for the diagnosis of thoracic and abdominal lesions.
authors.affiliation: Departamento de Radiología, Hospital Clínico, P. Universidad Católica de Chile.
authors.forename: F
authors.initials: F
authors.lastname: Cruz
authors.forename: P
authors.initials: P
authors.lastname: Soffia
authors.forename: P
authors.initials: P
authors.lastname: del Río
authors.forename: V
authors.initials: V
authors.lastname: Cervilla
authors.forename: M
authors.initials: M
authors.lastname: Fava
authors.forename: G
authors.initials: G
authors.lastname: Ríos
authors.forename: I
authors.initials: I
authors.lastname: Duarte
authors.forename: J
authors.initials: J
authors.lastname: Prieto
authors.forename: A
authors.initials: A
authors.lastname: Mercado
authors.forename: M
authors.initials: M
authors.lastname: Hidalgo
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis*; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle / Q000379:methods*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D013899:Thoracic Neoplasms / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed
vernacular_title: Puncion percutanea con aguja fina guiada por tomografia computada.