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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

VRT (a) and MaxIP images (b) in a 1.5-year-old child show a (right-sided dominant) double aortic arch that encircles the trachea and oesophagus causing narrowing of the trachea at this level and extends down to the carina seen on the MinIP image (c). Scanning parameters: 80 kV, 39 eff mAs, 150 ref mAs, 0.67 CTDIvol, 9 DLP
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Fig18: VRT (a) and MaxIP images (b) in a 1.5-year-old child show a (right-sided dominant) double aortic arch that encircles the trachea and oesophagus causing narrowing of the trachea at this level and extends down to the carina seen on the MinIP image (c). Scanning parameters: 80 kV, 39 eff mAs, 150 ref mAs, 0.67 CTDIvol, 9 DLP

Mentions: Vascular ring anomalies are congenital anomalies of the aortic arch where there is resultant complete or partial encirclement of the trachea with subsequent obstruction causing respiratory distress. In certain cases the oesophagus can also be encircled within the ring. Common types of vascular ring include (1) double aortic arch, where two aortic arches arise from the ascending aorta and join together behind the trachea to form a single descending aorta (Fig. 18 ) and (2) a persistent right aortic arch, which results from involution of the left aortic arch, of which there are two types.Fig. 18


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

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

VRT (a) and MaxIP images (b) in a 1.5-year-old child show a (right-sided dominant) double aortic arch that encircles the trachea and oesophagus causing narrowing of the trachea at this level and extends down to the carina seen on the MinIP image (c). Scanning parameters: 80 kV, 39 eff mAs, 150 ref mAs, 0.67 CTDIvol, 9 DLP
© Copyright Policy
Related In: Results  -  Collection

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getmorefigures.php?uid=PMC3369117&req=5

Fig18: VRT (a) and MaxIP images (b) in a 1.5-year-old child show a (right-sided dominant) double aortic arch that encircles the trachea and oesophagus causing narrowing of the trachea at this level and extends down to the carina seen on the MinIP image (c). Scanning parameters: 80 kV, 39 eff mAs, 150 ref mAs, 0.67 CTDIvol, 9 DLP
Mentions: Vascular ring anomalies are congenital anomalies of the aortic arch where there is resultant complete or partial encirclement of the trachea with subsequent obstruction causing respiratory distress. In certain cases the oesophagus can also be encircled within the ring. Common types of vascular ring include (1) double aortic arch, where two aortic arches arise from the ascending aorta and join together behind the trachea to form a single descending aorta (Fig. 18 ) and (2) a persistent right aortic arch, which results from involution of the left aortic arch, of which there are two types.Fig. 18

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