Related Experiment Videos
[High resolution computerized tomography in pulmonary tuberculosis with negative sputum bacilloscopy].
E González Constán1, J Franco Serrano, M L Domingo Montañana
1Servicios de Neumología. Hospital Universitario Dr. Peset. Valencia. Spain. edgonc@ono.com
Revista Clinica Espanola
|November 6, 2003
Summary
High-resolution computed tomography (HRCT) aids in diagnosing pulmonary tuberculosis when sputum tests are negative. Findings like consolidation and nodules on HRCT effectively indicate active disease.
Area of Science:
- Radiology
- Pulmonology
- Infectious Diseases
Background:
- Pulmonary tuberculosis diagnosis is challenging with negative sputum bacilloscopy, especially without liquid culture media.
- Slow Mycobacterium tuberculosis growth and invasive procedures complicate traditional diagnostic methods.
Purpose of the Study:
- To evaluate high-resolution computed tomography (HRCT) findings in pulmonary tuberculosis patients with negative sputum bacilloscopy.
- To determine the diagnostic utility of specific HRCT features for active and inactive pulmonary tuberculosis.
Main Methods:
- Prospective evaluation of 28 patients (12 active, 16 inactive tuberculosis) using HRCT.
- Assessment of various HRCT findings including nodules, consolidation, cavitation, bronchiectases, and fibrotic changes.
Main Results:
- Consolidation, macronodules, and centrolobular nodules were significantly associated with active tuberculosis (67% each).
- Centrolobular nodules and/or consolidation showed 83% sensitivity and 87% specificity for active disease.
- Bronchiectases (87%) and broncovascular distortion (62%) were significantly associated with inactive tuberculosis.
Conclusions:
- HRCT is valuable for diagnosing pulmonary tuberculosis with negative sputum bacilloscopy.
- The presence of centrolobular nodules and/or consolidation on HRCT is a sensitive and specific indicator of active pulmonary disease.