Ultra-low-dose CBCT: new cornerstone of paranasal sinus imaging.

Autor:	Tamminen P; Department of Otorhinolaryngology, Head and Neck Surgery, Tampere University Hospital, Tampere, Finland; Department of Otorhinolaryngology, Satasairaala, Pori, Finland; Department of Internal Medicine, Tampere University Hospital, Tampere, Finland; Allergy Centre, Tampere University Hospital, Tampere, Finland; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland., Jarnstedt J; Medical Imaging Centre, Department of Radiology Tampere University Hospital, Tampere, Finland., Numminen J; Department of Otorhinolaryngology, Head and Neck Surgery, Tampere University Hospital, Tampere, Finland., Lehtinen A; Medical Imaging Centre, Department of Radiology Tampere University Hospital, Tampere, Finland., Lehtimaki L; Allergy Centre, Tampere University Hospital, Tampere, Finland; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland., Rautiainen M; Department of Otorhinolaryngology, Head and Neck Surgery, Tampere University Hospital, Tampere, Finland; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland., Kivekas I; Department of Otorhinolaryngology, Head and Neck Surgery, Tampere University Hospital, Tampere, Finland; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
Jazyk:	angličtina
Zdroj:	Rhinology [Rhinology] 2023 Jun 01; Vol. 61 (3), pp. 221-230.
DOI:	10.4193/Rhin22.385
Abstrakt:	Background: This study evaluates the clinical image quality (IQ) and usability of a sinonasal ultra-low-dose (ULD) cone-beam computed tomography (CBCT) scan. The results are compared to those of a high resolution (HR) CBCT scan to identify the strengths and weaknesses of a ULD CBCT protocol. Methodology: Sixty-six anatomical sites in 33 subjects were imaged twice using two imaging modalities: HR CBCT (Scanora 3Dx scanner; Soredex, Tuusula, Finland) and ULD CBCT (Promax 3D Mid scanner; Plandent, Helsinki, Finland). IQ, opacification and obstruction, structural features and operative usability were assessed. Results: The overall IQ in subjects with 'no or minor opacification' was excellent: 100% (HR CBCT) and 99% (ULD CBCT) of ratings were evaluated as sufficient for every structure. Increased opacification reduced the quality of both imaging modalities, resulting conchtoethmoidectomy, frontal sinusotomy, sphenotomy and posterior ethmoidectomy in cases with greater opacification. Conclusions: IQ of paranasal ULD CBCT is sufficient for clinical diagnostics and should be considered for surgical planning. We recommend it as the primary imaging protocol for all patients who meet imaging criteria due to recurrent or chronic nasal symptoms. Additional or conventional imaging might be needed for patients with extensive chronic rhinosinusitis and/or indications of frontal sinus involvement.
Databáze:	MEDLINE
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