Third generation dual-energy CT with 80/150 Sn kV for head and neck tumor imaging.
CT
Head/neck
dual-energy CT
image quality
radiation exposure
Journal
Acta radiologica (Stockholm, Sweden : 1987)
ISSN: 1600-0455
Titre abrégé: Acta Radiol
Pays: England
ID NLM: 8706123
Informations de publication
Date de publication:
May 2019
May 2019
Historique:
pubmed:
10
8
2018
medline:
2
5
2019
entrez:
10
8
2018
Statut:
ppublish
Résumé
Dual-energy CT (DECT) provides additional image datasets which enable improved tumor delineation or reduction of beam hardening artifacts in patients with head and neck squamous cell carcinoma (SCC). To assess radiation dose and image quality of third-generation DECT of the head and neck in comparison to single-energy CT (SECT). Thirty patients with SCC who underwent both SECT (reference tube voltage 120 kVp) and DECT (80/150 Sn kVp) of the head and neck region for staging were retrospectively selected. Attenuation measurements of the sternomastoid muscle, internal jugular vein, submandibular gland and tongue were compared. Image noise was assessed at five anatomic levels. Subjective image quality was evaluated by two radiologists in consensus. CTDI Head and neck imaging with third-generation DECT can reduce radiation dose by half compared to SECT, while maintaining excellent image quality.
Sections du résumé
BACKGROUND
BACKGROUND
Dual-energy CT (DECT) provides additional image datasets which enable improved tumor delineation or reduction of beam hardening artifacts in patients with head and neck squamous cell carcinoma (SCC).
PURPOSE
OBJECTIVE
To assess radiation dose and image quality of third-generation DECT of the head and neck in comparison to single-energy CT (SECT).
MATERIAL AND METHODS
METHODS
Thirty patients with SCC who underwent both SECT (reference tube voltage 120 kVp) and DECT (80/150 Sn kVp) of the head and neck region for staging were retrospectively selected. Attenuation measurements of the sternomastoid muscle, internal jugular vein, submandibular gland and tongue were compared. Image noise was assessed at five anatomic levels. Subjective image quality was evaluated by two radiologists in consensus.
RESULTS
RESULTS
CTDI
CONCLUSION
CONCLUSIONS
Head and neck imaging with third-generation DECT can reduce radiation dose by half compared to SECT, while maintaining excellent image quality.
Identifiants
pubmed: 30089396
doi: 10.1177/0284185118788896
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM