Optimal combination periprosthetic vasculature visualization and metal artifact reduction by spectral computed tomography using virtual monoenergetic images in total hip arthroplasty

Autor:	Jie Zhao, Qiang Cheng, Chuan Liu, Qiqi Wang, Yuchan Lv, Ziyi Tang, Yuxi Luo, Haitao Yang
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	Energy spectrum CT Virtual monoenergetic imaging Metal artifact reduction Periprosthetic vasculature Medical physics. Medical radiology. Nuclear medicine R895-920
Zdroj:	Insights into Imaging, Vol 14, Iss 1, Pp 1-12 (2023)
Druh dokumentu:	article
ISSN:	1869-4101
DOI:	10.1186/s13244-023-01533-3
Popis:	Abstract Objectives To investigate the optimal parameters of spectral CT for preferably visualizing the periprosthetic vasculature and metal artifact reduction (MAR) in total hip arthroplasty (THA). Methods A total of 34 THA of 30 patients were retrospectively included. Image reconstructions included conventional image (CI), CI combined with MAR (CIMAR), and virtual monoenergetic images (VMI) combined with MAR (VMIMAR) at 50–120 keV. The attenuation and standard deviation of the vessel and artifact, and the width of artifact were measured. Qualitative scoring was evaluated including the vascular contour, the extent of artifact, and overall diagnostic evaluation. Results The attenuation, noise of the vessel and artifact, and the width of artifact decreased as the energy level increased (p
Databáze:	Directory of Open Access Journals
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