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Paediatric multi-detector row chest CT: what you really need to know.

Young C, Xie C, Owens CM - Insights Imaging (2012)

Bottom Line: Paediatric imaging technique/protocol together with radiation dose reduction is discussed in detail.However, users must be vigilant in their imaging techniques to minimise radiation burden, whilst maintaining good image quality.Main Messages • CT examinations should be clinically justified by the referring clinician and radiologist. • MDCT is invaluable for evaluating the central airway, mediastinal structures and lung parenchyma. • MDCT is more sensitive than plain radiographs in detection of structural changes within the lungs.

View Article: PubMed Central - PubMed

Affiliation: Cardio-thoracic Unit, Great Ormond Street Hospital for Children NHS Trust, London, WC1N, 3JH, UK, carolyn.young16@yahoo.co.uk.

ABSTRACT

Background: The emergence of multi-detector row CT (MDCT) has established and extended the role of CT especially in paediatric chest imaging. This has altered the way in which data is acquired and is perceived as the 'gold standard' in the detection of certain chest pathologies. The range of available post-processing tools provide alternative ways in which CT images can be manipulated for review and interpretation in order to enhance diagnostic accuracy.

Methodology: Paediatric imaging technique/protocol together with radiation dose reduction is discussed in detail. The use of different post-processing tools to best demonstrate the wide range of important congenital anomalies and thoracic pathologies is outlined and presented pictorially.

Conclusion: MDCT with its isotropic resolution and fast imaging acquisition times reduces the need for invasive diagnostic investigations. However, users must be vigilant in their imaging techniques to minimise radiation burden, whilst maintaining good image quality. Main Messages • CT examinations should be clinically justified by the referring clinician and radiologist. • MDCT is invaluable for evaluating the central airway, mediastinal structures and lung parenchyma. • MDCT is more sensitive than plain radiographs in detection of structural changes within the lungs.

No MeSH data available.


Related in: MedlinePlus

A 12-year-old child with congenital tracheal stenosis associated with complete cartilaginous ring and ‘O’-shaped trachea (in the axial plane) (a). The trachea is long with an obtuse carina angle that ends at the T6 level (MinIP image, b), whilst the stenotic tracheal length is best depicted on the sagittal MinIP image (c). Scanning parameters: 100 kV, 44 eff mAs, 180 ref mAs, 5.70 CTDIvol, 135 DLP
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Fig11: A 12-year-old child with congenital tracheal stenosis associated with complete cartilaginous ring and ‘O’-shaped trachea (in the axial plane) (a). The trachea is long with an obtuse carina angle that ends at the T6 level (MinIP image, b), whilst the stenotic tracheal length is best depicted on the sagittal MinIP image (c). Scanning parameters: 100 kV, 44 eff mAs, 180 ref mAs, 5.70 CTDIvol, 135 DLP

Mentions: Congenital tracheal stenosis is a rare anomaly in which the normal membranous posterior aspect of the trachea is replaced by cartilage resulting in complete circular tracheal rings with narrowing of the tracheal lumen. The appearance on CT axial images shows an ‘O-shaped’ trachea [1] (Fig. 11). This may affect more than 50% of the trachea and involve the main bronchi and may be associated with cardiac or skeletal anomalies.Fig. 11


Paediatric multi-detector row chest CT: what you really need to know.

Young C, Xie C, Owens CM - Insights Imaging (2012)

A 12-year-old child with congenital tracheal stenosis associated with complete cartilaginous ring and ‘O’-shaped trachea (in the axial plane) (a). The trachea is long with an obtuse carina angle that ends at the T6 level (MinIP image, b), whilst the stenotic tracheal length is best depicted on the sagittal MinIP image (c). Scanning parameters: 100 kV, 44 eff mAs, 180 ref mAs, 5.70 CTDIvol, 135 DLP
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3369117&req=5

Fig11: A 12-year-old child with congenital tracheal stenosis associated with complete cartilaginous ring and ‘O’-shaped trachea (in the axial plane) (a). The trachea is long with an obtuse carina angle that ends at the T6 level (MinIP image, b), whilst the stenotic tracheal length is best depicted on the sagittal MinIP image (c). Scanning parameters: 100 kV, 44 eff mAs, 180 ref mAs, 5.70 CTDIvol, 135 DLP
Mentions: Congenital tracheal stenosis is a rare anomaly in which the normal membranous posterior aspect of the trachea is replaced by cartilage resulting in complete circular tracheal rings with narrowing of the tracheal lumen. The appearance on CT axial images shows an ‘O-shaped’ trachea [1] (Fig. 11). This may affect more than 50% of the trachea and involve the main bronchi and may be associated with cardiac or skeletal anomalies.Fig. 11

Bottom Line: Paediatric imaging technique/protocol together with radiation dose reduction is discussed in detail.However, users must be vigilant in their imaging techniques to minimise radiation burden, whilst maintaining good image quality.Main Messages • CT examinations should be clinically justified by the referring clinician and radiologist. • MDCT is invaluable for evaluating the central airway, mediastinal structures and lung parenchyma. • MDCT is more sensitive than plain radiographs in detection of structural changes within the lungs.

View Article: PubMed Central - PubMed

Affiliation: Cardio-thoracic Unit, Great Ormond Street Hospital for Children NHS Trust, London, WC1N, 3JH, UK, carolyn.young16@yahoo.co.uk.

ABSTRACT

Background: The emergence of multi-detector row CT (MDCT) has established and extended the role of CT especially in paediatric chest imaging. This has altered the way in which data is acquired and is perceived as the 'gold standard' in the detection of certain chest pathologies. The range of available post-processing tools provide alternative ways in which CT images can be manipulated for review and interpretation in order to enhance diagnostic accuracy.

Methodology: Paediatric imaging technique/protocol together with radiation dose reduction is discussed in detail. The use of different post-processing tools to best demonstrate the wide range of important congenital anomalies and thoracic pathologies is outlined and presented pictorially.

Conclusion: MDCT with its isotropic resolution and fast imaging acquisition times reduces the need for invasive diagnostic investigations. However, users must be vigilant in their imaging techniques to minimise radiation burden, whilst maintaining good image quality. Main Messages • CT examinations should be clinically justified by the referring clinician and radiologist. • MDCT is invaluable for evaluating the central airway, mediastinal structures and lung parenchyma. • MDCT is more sensitive than plain radiographs in detection of structural changes within the lungs.

No MeSH data available.


Related in: MedlinePlus