Preliminary application of high-definition CT Gemstone Spectral Imaging in hand and foot tendons.

Content Provider	Europe PMC
Author	Deng, Kai Zhang, Cheng-Qi Li, Wei Wang, Jun-Jun Wang, Xin-Yi Pang, Tao Wang, Guang-Li Liu, Cheng
Copyright Year	2012
Abstract	ObjectiveTo assess the feasibility of visualizing hand and foot tendon anatomy and disorders by Gemstone Spectral Imaging (GSI) high-definition CT (HDCT).Materials and MethodsThirty-five patients who suffered from hand or foot pain were scanned with GSI mode HDCT and MRI. Spectrum analysis was used to select the monochromatic images that provide the optimal contrast-to-noise ratio (CNR) for tendons. The image quality at the best selected monochromatic level and the conventional polychromatic images were compared. Tendon anatomy and disease were also analyzed at GSI and MRI.ResultsThe monochromatic images at about 65 keV (mean 65.09 ± 2.98) provided the optimal CNR for hand and foot tendons. The image quality at the optimal selected monochromatic level was superior to conventional polychromatic images (p = 0.005, p < 0.05). GSI was useful in visualizing hand and foot tendon anatomy and disorders. There were no statistical differences between GSI and MRI with regard to tendon thickening (χ2 = 0, p > 0.05), compression (χ2 = 0.5, p > 0.05), absence (χ2 = 0, p > 0.05) and rupture (χ2 = 0, p > 0.05). GSI was significantly less sensitive than MRI in displaying tendon adhesion (χ2 = 4.17, p < 0.05), degeneration (χ2 = 4.17, p < 0.05), and tendinous sheath disease (χ2 = 10.08, p < 0.05).ConclusionGSI with monochromatic images at 65 keV displays clearly the most hand and foot tendon anatomy and disorders with image quality improved, as compared with conventional polychromatic images. It may be used solely or combined with MRI in clinical work, depending on individual patient disease condition.
ISSN	12296929
Journal	Korean Journal of Radiology
Volume Number	13
PubMed Central reference number	PMC3484295
Issue Number	6
PubMed reference number	23118573
e-ISSN	20058330
DOI	10.3348/kjr.2012.13.6.743
Language	English
Publisher	The Korean Society of Radiology
Publisher Date	2012-10-12
Access Restriction	Open
Rights License	This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copyright © 2012 The Korean Society of Radiology
Subject Keyword	Dual energy CT Spectral imaging Magnetic resonance imaging Tendon
Content Type	Text
Resource Type	Article
Subject	Radiology, Nuclear Medicine and Imaging