title: High resolution chest CT in patients with pulmonary tuberculosis: characteristic findings before and after antituberculous therapy.
abstract: OBJECTIVE
  The purpose of this study was (a) to describe HRCT findings for pulmonary tuberculosis before and after treatment, and (b) to evaluate the possible use of HRCT to assess disease activity.
  
  
  METHODS
  We prospectively studied 52 patients with newly diagnosed pulmonary tuberculosis that was proven bacteriologically. HRCT scans were performed before and after treatment.
  
  
  RESULTS
  Micronodules, nodules, tree-in-bud appearance, consolidation, and cavities were the most common HRCT findings seen in active pulmonary tuberculosis. The disappearance of tree-in-bud appearance, pleural effusion and the presence of fibrotic change appear to be indications of the effectiveness of treatment. HRCT can differentiate old fibrotic lesions from newly active tuberculous lesions.
  
  
  CONCLUSIONS
  HRCT may be helpful in the diagnosis of pulmonary tuberculosis and may be useful in the assessment of the efficacy of anti-tuberculous treatment.
authors.affiliation: Department of Internal Medicine, Buddhist Tzu Chi General Hospital, Hualien, Taiwan.
authors.forename: Jen-Jyh
authors.initials: JJ
authors.lastname: Lee
authors.forename: Pau-Yuan
authors.initials: PY
authors.lastname: Chong
authors.forename: Chih-Bin
authors.initials: CB
authors.lastname: Lin
authors.forename: Ai-His
authors.initials: AH
authors.lastname: Hsu
authors.forename: Chou-Chin
authors.initials: CC
authors.lastname: Lee
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000995:Antitubercular Agents / Q000008:administration & dosage*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011856:Radiographic Image Enhancement / Q000379:methods*; D013902:Radiography, Thoracic / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D016896:Treatment Outcome; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging* / Q000188:drug therapy*
chemical_list: D000995:Antitubercular Agents