TY - JOUR T1 - Measurement of the internal size of bronchi using high resolution computed tomography (HRCT) JF - European Respiratory Journal JO - Eur Respir J SP - 596 LP - 600 DO - 10.1183/09031936.94.07030596 VL - 7 IS - 3 AU - E Seneterre AU - F Paganin AU - JM Bruel AU - FB Michel AU - J Bousquet Y1 - 1994/03/01 UR - http://erj.ersjournals.com/content/7/3/596.abstract N2 - Computed tomography (CT) of the lungs makes it possible to study individual airways. A technique using high-resolution-CT (HRCT) has been developed to measure the internal size of the bronchi. Five normal subjects had a conventional HRCT scan at full, deep inspiration. The internal size of the airways from segmental to the sixth generation bronchi was measured using an original method of data analysis. The size of the airways ranged 0.5-50 mm2 (approximately 0.8-8 mm in diameter. The technique was found to be highly reproducible, making it possible to study the variation in airways calibre after provocative challenge or administration of bronchodilator in asthma. ER -