已入深夜,您辛苦了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!祝你早点完成任务,早点休息,好梦!

The optimal energy level of virtual monochromatic imaging in Dual-energy CT arthrography of the wrist

单色 手腕 双重能量 医学 对偶(语法数字) 核医学 能量(信号处理) 放射科 物理 光学 病理 量子力学 文学类 艺术 骨质疏松症 骨矿物
作者
Bo Mi Chung,Guen Young Lee,Sujin Kim
出处
期刊:British Journal of Radiology [Wiley]
标识
DOI:10.1093/bjr/tqae238
摘要

Abstract Objectives To suggest an optimal energy level of virtual monochromatic images (VMIs) in dual-energy CT arthrography of the wrist. Methods This retrospective study included 53 patients with wrist CT arthrography. Conventional polychromatic images and VMIs at four energy levels (40 to 70 keV at 10 keV intervals) were obtained. Image noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) were measured, and qualitative analysis of image quality and diagnostic confidence was performed. For each patient, an energy level with the best image quality was chosen by consensus. Comparisons of quantitative and qualitative parameters between VMI sets were performed. Results The image noise of bone and muscle were increased with decreasing energy level (p < 0.001). The noise of contrast was highest on 60 keV VMI. SNR and CNR (between contrast and muscle) were increased with decreasing energy level and were markedly increased between 60 and 50 keV (p < 0.001). The 60 keV VMI demonstrated the highest image quality and diagnostic confidence, chosen as the best diagnostic image (n = 31/53). Given that the attenuation of the contrast material was low on the conventional image, the optimal energy level of the best VMI tended to be low. Conclusion Wrist dual-energy CT arthrography with VMIs at 60 keV or less could improve image quality and diagnostic performance by increasing SNR and CNR in cases with low contrast attenuation. Advances in Knowledge Wrist dual-energy CT arthrography with VMIs at variable keV could be utilised to enhance SNR and CNR, thereby achieving diagnostic images of high quality.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
刚刚
relink完成签到,获得积分10
1秒前
les3发布了新的文献求助10
5秒前
李健的小迷弟应助hyr采纳,获得10
7秒前
萧水白发布了新的文献求助100
7秒前
8秒前
mue完成签到,获得积分10
9秒前
思源应助蔡6705采纳,获得10
11秒前
12秒前
13秒前
16秒前
17秒前
18秒前
大巧不工发布了新的文献求助10
18秒前
今后应助外汇交易员采纳,获得10
19秒前
19秒前
hyr发布了新的文献求助10
19秒前
20秒前
科研通AI2S应助科研通管家采纳,获得10
21秒前
香蕉觅云应助科研通管家采纳,获得10
21秒前
地表飞猪应助科研通管家采纳,获得10
21秒前
21秒前
iNk应助科研通管家采纳,获得20
21秒前
llp发布了新的文献求助20
23秒前
蔡6705发布了新的文献求助10
23秒前
量子星尘发布了新的文献求助10
24秒前
深情安青应助zihangzeng采纳,获得10
25秒前
繁荣的代秋完成签到 ,获得积分10
27秒前
烂漫向卉完成签到,获得积分10
29秒前
30秒前
外汇交易员完成签到,获得积分10
30秒前
31秒前
32秒前
34秒前
35秒前
攀九年发布了新的文献求助10
37秒前
Cathy_Chen发布了新的文献求助30
41秒前
niulugai完成签到,获得积分10
45秒前
润秋完成签到,获得积分10
46秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3976531
求助须知:如何正确求助?哪些是违规求助? 3520603
关于积分的说明 11204100
捐赠科研通 3257210
什么是DOI,文献DOI怎么找? 1798648
邀请新用户注册赠送积分活动 877835
科研通“疑难数据库(出版商)”最低求助积分说明 806570