Rhinoplasty Pre-Surgery Models by Using Low-Dose Computed Tomography, Magnetic Resonance Imaging, and 3D Printing

Rhinoplasty and surgical reconstruction of cartilaginous structures still remain a great challenge today. This study aims to identify an imaging strategy in order to merge the information from CT scans and magnetic resonance imaging (MRI) acquisitions and build a 3D printed model true to the patient...

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Autores principales:	Dario Baldi, Luca Basso, Gisella Nele, Giovanni Federico, Giuseppe Walter Antonucci, Marco Salvatore, Carlo Cavaliere
Formato:	article
Lenguaje:	EN
Publicado:	SAGE Publishing 2021
Materias:	Therapeutics. Pharmacology RM1-950
Acceso en línea:	https://doaj.org/article/0a8543c5440b46c5abb1a98a875dcd62
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spelling	oai:doaj.org-article:0a8543c5440b46c5abb1a98a875dcd622021-12-01T23:36:07ZRhinoplasty Pre-Surgery Models by Using Low-Dose Computed Tomography, Magnetic Resonance Imaging, and 3D Printing1559-325810.1177/15593258211060950https://doaj.org/article/0a8543c5440b46c5abb1a98a875dcd622021-11-01T00:00:00Zhttps://doi.org/10.1177/15593258211060950https://doaj.org/toc/1559-3258Rhinoplasty and surgical reconstruction of cartilaginous structures still remain a great challenge today. This study aims to identify an imaging strategy in order to merge the information from CT scans and magnetic resonance imaging (MRI) acquisitions and build a 3D printed model true to the patient’s anatomy, for better surgical planning. Using MRI, information can be obtained about the cartilage structures of which the nose is composed. Ten rhinoplasty candidate patients underwent both a low-dose protocol CT scan and a specific MRI for characterization of nasal structures. Bone and soft tissue segmentations were performed in CT, while cartilage segmentations were extrapolated from MRI and validated by both an expert radiologist and surgeon. Subsequently, a 3D model was produced in materials and colors reproducing the density of the three main structures (bone, soft tissue, and cartilage), useful for pre-surgical evaluation. This study has highlighted that the optimization of a CT and MR dedicated protocol has allowed to reduce the CT radiation dose up to 60% compared to standard acquisitions with the same machine, and MR acquisition time of about 20%. Patient-tailored 3D models and pre-surgical planning have reduced the mean operative time by 20 minutes.Dario BaldiLuca BassoGisella NeleGiovanni FedericoGiuseppe Walter AntonucciMarco SalvatoreCarlo CavaliereSAGE PublishingarticleTherapeutics. PharmacologyRM1-950ENDose-Response, Vol 19 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Therapeutics. Pharmacology RM1-950
spellingShingle	Therapeutics. Pharmacology RM1-950 Dario Baldi Luca Basso Gisella Nele Giovanni Federico Giuseppe Walter Antonucci Marco Salvatore Carlo Cavaliere Rhinoplasty Pre-Surgery Models by Using Low-Dose Computed Tomography, Magnetic Resonance Imaging, and 3D Printing
description	Rhinoplasty and surgical reconstruction of cartilaginous structures still remain a great challenge today. This study aims to identify an imaging strategy in order to merge the information from CT scans and magnetic resonance imaging (MRI) acquisitions and build a 3D printed model true to the patient’s anatomy, for better surgical planning. Using MRI, information can be obtained about the cartilage structures of which the nose is composed. Ten rhinoplasty candidate patients underwent both a low-dose protocol CT scan and a specific MRI for characterization of nasal structures. Bone and soft tissue segmentations were performed in CT, while cartilage segmentations were extrapolated from MRI and validated by both an expert radiologist and surgeon. Subsequently, a 3D model was produced in materials and colors reproducing the density of the three main structures (bone, soft tissue, and cartilage), useful for pre-surgical evaluation. This study has highlighted that the optimization of a CT and MR dedicated protocol has allowed to reduce the CT radiation dose up to 60% compared to standard acquisitions with the same machine, and MR acquisition time of about 20%. Patient-tailored 3D models and pre-surgical planning have reduced the mean operative time by 20 minutes.
format	article
author	Dario Baldi Luca Basso Gisella Nele Giovanni Federico Giuseppe Walter Antonucci Marco Salvatore Carlo Cavaliere
author_facet	Dario Baldi Luca Basso Gisella Nele Giovanni Federico Giuseppe Walter Antonucci Marco Salvatore Carlo Cavaliere
author_sort	Dario Baldi
title	Rhinoplasty Pre-Surgery Models by Using Low-Dose Computed Tomography, Magnetic Resonance Imaging, and 3D Printing
title_short	Rhinoplasty Pre-Surgery Models by Using Low-Dose Computed Tomography, Magnetic Resonance Imaging, and 3D Printing
title_full	Rhinoplasty Pre-Surgery Models by Using Low-Dose Computed Tomography, Magnetic Resonance Imaging, and 3D Printing
title_fullStr	Rhinoplasty Pre-Surgery Models by Using Low-Dose Computed Tomography, Magnetic Resonance Imaging, and 3D Printing
title_full_unstemmed	Rhinoplasty Pre-Surgery Models by Using Low-Dose Computed Tomography, Magnetic Resonance Imaging, and 3D Printing
title_sort	rhinoplasty pre-surgery models by using low-dose computed tomography, magnetic resonance imaging, and 3d printing
publisher	SAGE Publishing
publishDate	2021
url	https://doaj.org/article/0a8543c5440b46c5abb1a98a875dcd62
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Rhinoplasty Pre-Surgery Models by Using Low-Dose Computed Tomography, Magnetic Resonance Imaging, and 3D Printing

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