CT protocols in interstitial lung diseases—A survey among members of the European Society of Thoracic Imaging and a review of the literature

Prosch, Helmut; Schaefer-Prokop, Cornelia; Eisenhuber, Edith; Kienzl, Daniela; Herold, Christian

doi:10.1007/s00330-012-2733-6

Cited by 31 publications

(17 citation statements)

References 51 publications

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“…In a survey among members of the European Society of Thoracic Imaging, only 58% of respondents stated to routinely perform expiratory scans in patients with ILD. 16 The common paradigm indicates that expiratory scans do not provide further information than to exclude air-trapping. Possibly due to this untested assumption, there is a lack of systematic studies having analyzed expiration in IPF and other ILD patients.…”

Section: Discussionmentioning

confidence: 99%

“…16 They provide functional and dynamic information on lung parenchyma, small airways, and interstitium that would otherwise (ie, only by means of an inspiratory CT scans) be unavailable. 17,18 In patients with COPD and emphysema, expiratory scans help to identify lung areas with fixed hyperinflation versus areas that still take part in the volume change of a respiratory cycle and thus facilitate planning of local therapy.…”

Section: Discussionmentioning

confidence: 99%

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Increased Expiratory Computed Tomography Density Reveals Possible Abnormalities in Radiologically Preserved Lung Parenchyma in Idiopathic Pulmonary Fibrosis

Petroulia¹,

Funke²,

Zumstein³

et al. 2018

Invest Radiol

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Objectives: Idiopathic pulmonary fibrosis (IPF) is a progressive lethal chronic lung disease with unclear pathogenesis. Radiological hallmark is the pattern of usual interstitial pneumonia accentuated in peripheral and basal areas with otherwise preserved lung structure. One hypothesis is that alveolar collapse and consequent induration lead to fibrotic transformation of lung tissue. The aim of the study was to investigate normal-appearing tissue during expiration for signs of collapsibility and differences from other diseases or controls. Materials and Methods: We retrospectively assessed a total of 43 patients (15 IPFs, 13 chronic obstructive pulmonary diseases, and 15 controls) with nonenhanced computed tomography (CT) in inspiration and expiration, performed for routine clinical workup. Densitometry of visually unaffected lung tissue was conducted in all lung lobes with a region of interest of 15-mm in diameter on soft tissue kernel reconstruction (slice thickness, 1 mm) during inspiration and expiration. Results: One-factor analysis of variance analysis yielded significant difference in attenuation changes between inspiration and expiration of unaffected lung parenchyma among all subject groups in all lung lobes. For IPF patients, the highest differences in densities were observed in the lower lobes, which is the predominantly affected site of usual interstitial pneumonia. In the chronic obstructive pulmonary disease group, the density remained rather equal in the entire lung. Conclusions: High CT attenuation changes between inspiration and expiration in IPF patients might suggest altered lung parenchyma in normal-appearing tissue on CT. Density changes during the respiratory cycle might be explained by alveolar collapse of radiologically unaffected lung tissue possibly preceding fibrosis. These results support the concept of alveolar collapse preceding lung fibrosis in IPF.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Increased Expiratory Computed Tomography Density Reveals Possible Abnormalities in Radiologically Preserved Lung Parenchyma in Idiopathic Pulmonary Fibrosis

Petroulia¹,

Funke²,

Zumstein³

et al. 2018

Invest Radiol

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“…Occasionally, both inspiration and expiration scans are performed to obtain functional information, such as for emphysema and air trapping. 83,84 Post-mortem scans may have obscuration of lung pathology owing to increase in pulmonary opacification (livor mortis), which can be mistaken for aspiration, pulmonary oedema or pneumonia. 85 These changes build up with greater delay from death to scan, 86 and the best interpretation of lung pathology has been shown within 2 h of death.…”

Section: Respiratory Imaging and Ventilationmentioning

confidence: 99%

Adult post-mortem imaging in traumatic and cardiorespiratory death and its relation to clinical radiological imaging

Morgan¹,

Adlam²,

Robinson³

et al. 2014

BJR

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The use of post-mortem imaging is expanding throughout the world with increasing use of advanced imaging techniques, such as contrast-enhanced CT and MRI. The questions asked of post-mortem imaging are complex and can be very different, for example for natural sudden death investigation will focus on the cause, whereas for trauma the cause of death is often clear, but injury patterns may be very revealing in investigating the background to the incident. Postmortem imaging is different to clinical imaging regarding both the appearance of pathology and the information required, but there is much to learn from many years of clinical research in the use of these techniques. Furthermore, it is possible that post-mortem imaging research could be used not only for investigating the cause of death but also as a model to conduct clinically relevant research. This article reviews challenges to the development of post-mortem imaging for trauma, identification and cardiorespiratory death, and how they may be influenced by current clinical thinking and practice.

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“…However, with broad availability of multi-slice CT scanners the classic high resolution-CT (HRCT) technique is less frequently applied as shown by a European survey [29]. Most institutions (77%) acquire a volumetric dataset with reconstruction of thin slices (,3 mm).…”

Section: Morphological and Functional Imagingmentioning

confidence: 99%

Selected clinical highlights from the 2012 ERS congress in Vienna

Marvisi¹,

Herth

Ley³

et al. 2012

Eur Respir J

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This article reviews a selection of scientific presentations at the 2012 European Respiratory Society Annual Congress in Vienna, Austria. The best abstracts from the groups of the Clinical Assembly (Clinical Problems, Rehabilitation and Chronic Care, Imaging, Interventional Pulmonology, Diffuse Parenchymal Lung Disease, and General Practice and Primary Care) are presented and discussed in the context of the most up-to-date literature. The reviewed topics especially deal with the areas of chronic obstructive pulmonary disease (acute exacerbations, comorbidities, prognosis and rehabilitation), the diagnosis and management of idiopathic pulmonary fibrosis, sarcoidosis, endobronchial techniques in emphysema, functional imaging and issues in respiratory medicine relevant for the primary care setting, including aspects related to end-of-life care and palliation.

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CT protocols in interstitial lung diseases—A survey among members of the European Society of Thoracic Imaging and a review of the literature

Abstract: • Experienced thoracic radiologists use various CT protocols for evaluating interstitial lung diseases. • Most workers prefer volumetric CT acquisitions, making use of the 3D information • More attention to reducing the radiation dose appears to be needed.

Cited by 31 publications

References 51 publications

Increased Expiratory Computed Tomography Density Reveals Possible Abnormalities in Radiologically Preserved Lung Parenchyma in Idiopathic Pulmonary Fibrosis

Increased Expiratory Computed Tomography Density Reveals Possible Abnormalities in Radiologically Preserved Lung Parenchyma in Idiopathic Pulmonary Fibrosis

Adult post-mortem imaging in traumatic and cardiorespiratory death and its relation to clinical radiological imaging

Selected clinical highlights from the 2012 ERS congress in Vienna

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