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Applications of colour Doppler ultrasound in the diagnosis of chest diseases
Author(s) -
YANG PanChyr
Publication year - 1997
Publication title -
respirology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.857
H-Index - 85
eISSN - 1440-1843
pISSN - 1323-7799
DOI - 10.1111/j.1440-1843.1997.tb00083.x
Subject(s) - medicine , radiology , doppler effect , blood flow , hemodynamics , pulmonary infarction , lung , cardiology , physics , astronomy
Colour Doppler ultrasound (US) or colour Doppler imaging is a new imaging modality that can simultaneously display blood flow information and Doppler spectral analysis. This new technique provides an opportunity to assess pulmonary blood flow and perfusion non‐invasively. Colour Doppler US has many potential applications in diseases of the chest. Colour Doppler imaging is useful in assisting the diagnosis of pulmonary arteriovenous malformation and pulmonary sequestration. The ‘fluid colour sign’ can be used to detect minimal effusion amenable to thoracentesis. Colour Doppler US can be used to assess the angiogenesis of a lung tumour and may be helpful in differentiating a malignant tumour from a benign one. Colour Doppler US can be used to guide a transthoracic needle biopsy and improve the safety of this invasive procedure. Colour Doppler US can demonstrate the vascular patterns and assess the regional haemodynamic changes of a pulmonary consolidation. The information of spectral wave analysis is helpful for understanding the haemodynamic changes of a pulmonary consolidation. Colour Doppler US is useful in assessing perfusion and reperfusion status of a pulmonary infarction. The recent advent of amplitude US angiography further improved the sensitivity of colour Doppler US in detecting blood flow signal without angle restriction. The potential applications of these new techniques in chest diseases may need further exploration.