Imaging of pulmonary perfusion using subtraction CT angiography is feasible in clinical practice.
Computed tomography scanner
Contrast media
Perfusion imaging
Pulmonary embolism
Subtraction technique
Journal
European radiology
ISSN: 1432-1084
Titre abrégé: Eur Radiol
Pays: Germany
ID NLM: 9114774
Informations de publication
Date de publication:
Mar 2019
Mar 2019
Historique:
received:
25
04
2018
accepted:
28
08
2018
revised:
24
07
2018
pubmed:
27
9
2018
medline:
4
4
2019
entrez:
27
9
2018
Statut:
ppublish
Résumé
Subtraction computed tomography (SCT) is a technique that uses software-based motion correction between an unenhanced and an enhanced CT scan for obtaining the iodine distribution in the pulmonary parenchyma. This technique has been implemented in clinical practice for the evaluation of lung perfusion in CT pulmonary angiography (CTPA) in patients with suspicion of acute and chronic pulmonary embolism, with acceptable radiation dose. This paper discusses the technical principles, clinical interpretation, benefits and limitations of arterial subtraction CTPA. KEY POINTS: • SCT uses motion correction and image subtraction between an unenhanced and an enhanced CT scan to obtain iodine distribution in the pulmonary parenchyma. • SCT could have an added value in detection of pulmonary embolism. • SCT requires only software implementation, making it potentially more widely available for patient care than dual-energy CT.
Identifiants
pubmed: 30255247
doi: 10.1007/s00330-018-5740-4
pii: 10.1007/s00330-018-5740-4
pmc: PMC6510874
doi:
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
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