Evaluation of changes in central airway dimensions, lung area and mean lung density at paired inspiratory/expiratory high-resolution computed tomography

2003 ◽  
Vol 13 (11) ◽  
pp. 2454-2461 ◽  
Author(s):  
J. R. Ederle ◽  
C. P. Heussel ◽  
J. Hast ◽  
B. Fischer ◽  
E. J. R. van Beek ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
High Resolution Computed Tomography ◽  
Lung Density ◽  
Lung Area ◽  
Central Airway ◽  
Airway Dimensions

Acute Pulmonary Oxygen Toxicity in Rats: Findings and Lung Density Changes in High Resolution Computed Tomography

2000 ◽  
Vol 42 (3) ◽  
pp. 473
Author(s):  
Dae Sik Ryu ◽  
Kun Sang Kim ◽  
Kil Hyen Kang ◽  
Haing Sup Chung ◽  
Bung Wok Lee ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Oxygen Toxicity ◽  
High Resolution Computed Tomography ◽  
Lung Density

Longitudinal Follow-up Study of Smoking-induced Lung Density Changes by High-resolution Computed Tomography

2000 ◽  
Vol 161 (4) ◽  
pp. 1264-1273 ◽  
Author(s):  
KENZO SOEJIMA ◽  
KAZUHIRO YAMAGUCHI ◽  
EIICHI KOHDA ◽  
KEI TAKESHITA ◽  
YOKO ITO ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
High Resolution Computed Tomography ◽  
Lung Density ◽  
Follow Up Study

Airway narrowing in excised canine lungs measured by high-resolution computed tomography

1992 ◽  
Vol 73 (1) ◽  
pp. 307-316 ◽  
Author(s):  
A. E. McNamara ◽  
N. L. Muller ◽  
M. Okazawa ◽  
J. Arntorp ◽  
B. R. Wiggs ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Transpulmonary Pressure ◽  
Chronic Obstructive ◽  
Lumen Area ◽  
High Resolution Computed Tomography ◽  
Obstructive Pulmonary Disease ◽  
Airway Narrowing ◽  
Computed Tomographic ◽  
Airway Dimensions

The exact site of airway narrowing in asthma and chronic obstructive pulmonary disease is unknown. High-resolution computed tomography (HRCT) is a sensitive noninvasive imaging technique that can be used to measure airway dimensions. After determining the optimal computed tomographic parameters using a phantom, we measured lobe volume and airway dimensions of isolated canine lung lobes at a transpulmonary pressure of 25 cmH2O. These measurements were repeated after deflation and administration of aerosolized saline and carbachol (256 mg/ml). Lobe volume decreased with all treatments. The maximal lobar volume change was 26% at 6 cmH2O after carbachol. Average airway lumen area decreased with all treatments. After carbachol, at transpulmonary pressures of 25, 15, 10, 8, and 6 cmH2O, lumen area decreased by 7.3 +/- 4.1, 62.0 +/- 4.9, 77.5 +/- 3.0, 31.9 +/- 9.0, and 95.2 +/- 1.0% (SE), respectively. When the airways were divided into four categories on the basis of initial lumen diameter (less than 2, 2–4, 4–6, and greater than 6 mm), the greatest decreases in luminal area after carbachol were seen in intermediate-sized airways (2–4 mm, 56 +/- 4%; 4-6 mm, 59 +/- 3%). HRCT can be used to make accurate measurements of airway dimensions and airway narrowing in excised lungs. HRCT may allow measurement of airway wall thickness and determination of the site of airway narrowing in asthma.

scholarly journals Quantitative measurement of airway dimensions using ultra-high resolution computed tomography

2018 ◽  
Vol 56 (6) ◽  
pp. 489-496 ◽  
Author(s):  
Naoya Tanabe ◽  
Tsuyoshi Oguma ◽  
Susumu Sato ◽  
Takeshi Kubo ◽  
Satoshi Kozawa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Quantitative Measurement ◽  
High Resolution Computed Tomography ◽  
Airway Dimensions

scholarly journals Airway Dimensions in Asthma and COPD in High Resolution Computed Tomography: Can We See the Difference?

2013 ◽  
Vol 58 (8) ◽  
pp. 1335-1342 ◽  
Author(s):  
J. Kosciuch ◽  
R. Krenke ◽  
K. Gorska ◽  
M. Zukowska ◽  
M. Maskey-Warzechowska ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
High Resolution Computed Tomography ◽  
The Difference ◽  
Airway Dimensions

Determination of the Activity of Pulmonary Tuberculosis: the Utility of High-Resolution Computed Tomography

2000 ◽  
Vol 42 (5) ◽  
pp. 757
Author(s):  
Myung Hee Chung ◽  
Hae Giu Lee ◽  
Won Jong Yu ◽  
Hong Jun Chung ◽  
Bo Sung Yang ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Pulmonary Tuberculosis ◽  
High Resolution Computed Tomography

Bone marrow densitometry by clinical high resolution computed tomography of human vertebrae

2014 ◽  
Author(s):  
Jaime Pena ◽  
Graeme Campbell ◽  
Timo Damm ◽  
Reinhard Barkmann ◽  
Sonja Waldhausen ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Bone Marrow ◽  
High Resolution ◽  
High Resolution Computed Tomography
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