CT densitometry in emphysema: a systematic review of its clinical utility
| Autor: | Alice M Turner, Emma V Low, Muhammad Shamim Khan, Diana Crossley, Mary Renton |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Male
medicine.medical_specialty Vital Capacity Computed tomography densitometry International Journal of Chronic Obstructive Pulmonary Disease Severity of Illness Index chronic obstructive pulmonary disease Pulmonary Disease Chronic Obstructive 03 medical and health sciences 0302 clinical medicine Predictive Value of Tests Forced Expiratory Volume alpha 1-Antitrypsin Deficiency Humans Medicine 030212 general & internal medicine Expiration Lung Aged Proportional Hazards Models Original Research COPD Chi-Square Distribution medicine.diagnostic_test business.industry Minimal clinically important difference CT.densitometry computed tomography General Medicine Middle Aged Prognosis medicine.disease Study heterogeneity emphysema Pulmonary Emphysema 030228 respiratory system Data extraction Spirometry Multivariate Analysis Quality of Life Pulmonary Diffusing Capacity Female Radiology Tomography X-Ray Computed business Densitometry alpha-1 anti-trypsin deficiency CT |
| Zdroj: | International Journal of Chronic Obstructive Pulmonary Disease |
| ISSN: | 1178-2005 |
| Popis: | Diana Crossley,1 Mary Renton,1 Muhammad Khan,1 Emma V Low,1 Alice M Turner2 1Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK; 2Institute of Applied Health Sciences, University of Birmingham, Birmingham, UK Background: The aim of the study was to assess the relationship between computed tomography (CT) densitometry and routine clinical markers in patients with chronic obstructive pulmonary disease (COPD) and alpha-1 anti-trypsin deficiency (AATD).Methods: Multiple databases were searched using a combination of pertinent terms and those articles relating quantitatively measured CT densitometry to clinical outcomes. Studies that used visual scoring only were excluded, as were those measured in expiration only. A thorough review of abstracts and full manuscripts was conducted by 2 reviewers; data extraction and assessment of bias was conducted by 1 reviewer and the 4 reviewers independently assessed for quality. Pooled correlation coefficients were calculated, and heterogeneity was explored.Results: A total of 112 studies were identified, 82 being suitable for meta-analysis. The most commonly used density threshold was −950 HU, and a significant association between CT density and all included clinical parameters was demonstrated. There was marked heterogeneity between studies secondary to large variety of disease severity within commonly included cohorts and differences in CT acquisition parameters.Conclusion: CT density shows a good relationship to clinically relevant parameters; however, study heterogeneity and lack of longitudinal data mean that it is difficult to compare studies or derive a minimal clinically important difference. We recommend that international consensus is reached to standardize CT conduct and analysis in future COPD and AATD studies. Keywords: computed tomography, CT, densitometry, emphysema, chronic obstructive pulmonary disease, alpha-1 anti-trypsin deficiency |
| Databáze: | OpenAIRE |
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