Multiphase photon counting detector CT data sets – Which combination of contrast phase and virtual non-contrast algorithm is best suited to replace true non-contrast series in the assessment of active bleeding?

医学 对比度(视觉) 图像质量 核医学 算法 血管造影 放射科 相衬显微术 人工智能 数学 图像(数学) 光学 计算机科学 物理
作者
Franka Risch,Stefanie Bette,Andrea Sinzinger,Katharina Rippel,Christian Scheurig‐Muenkler,Thomas J. Kroencke,Josua A. Decker
出处
期刊:European Journal of Radiology [Elsevier BV]
卷期号:168: 111125-111125 被引量:4
标识
DOI:10.1016/j.ejrad.2023.111125
摘要

Purpose Aim of this study was to determine which virtual non-contrast (VNC) reconstruction algorithm, applied to which contrast phase of computed tomography angiography, best matches true non-contrast (TNC) images in the assessment of active bleeding. Method Patients who underwent a triphasic scan (pre-contrast, arterial, portal venous contrast) on a photon-counting detector CT (PCD-CT) (120 kV, image quality level 68) with suspected active (tumor, postoperative, spontaneous or other) bleeding were retrospectively included in this study. Conventional (VNCConv) and a calcium-preserving VNC algorithm (VNCPC) were derived from both arterial (art) and portal venous (pv) contrast scans, and analyzed quantitatively and qualitatively by two independent and blinded raters. Results 40 patients (22 female, mean age 76 years) were included. Measurements of CT values showed significant albeit small differences between TNC and VNC for most analyzed tissue regions without clear superiority of a VNC algorithm or contrast phase (e.g. ΔHU fat TNC to VNCPCpv 3.1 HU). However, qualitative analysis showed a preference to VNCPCpv in terms of image quality (on a 5-point Likert scale VNCConvart = 3.5 ± 0.8, VNCPCart = 3.7 ± 0.7, VNCConvpv = 3.7 ± 0.7, VNCPCpv = 3.8 ± 0.7) and residual calcium contrast (VNCConvart = 3.0 ± 0.8, VNCPCart = 3.5 ± 0.7, VNCConvpv = 3.6 ± 0.7, VNCPCpv = 3.9 ± 0.6). Conclusions When multiple post-contrast phases are available, VNCPC series based on portal venous phase are the most suitable replacement for an additional pre-contrast scan, with the prospect of a significant reduction in patient radiation dose.
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
乐乐应助机智谷蕊采纳,获得10
刚刚
3秒前
4秒前
5秒前
7秒前
8秒前
小马过河应助尼尼采纳,获得10
10秒前
10秒前
10秒前
吾将上下而求索完成签到,获得积分10
10秒前
10秒前
10秒前
科研通AI2S应助LIN采纳,获得10
11秒前
11秒前
11秒前
喜悦的半青完成签到,获得积分10
11秒前
12秒前
好宝宝发布了新的文献求助10
13秒前
上官若男应助程艳采纳,获得80
13秒前
伊可创发布了新的文献求助10
14秒前
Ava应助szh123采纳,获得10
15秒前
锦七发布了新的文献求助10
15秒前
小二郎应助收手吧大哥采纳,获得10
17秒前
18秒前
在水一方应助lm采纳,获得10
18秒前
可爱的函函应助jingjingA采纳,获得10
18秒前
Zdh同学完成签到,获得积分10
19秒前
我是老大应助淡然的铭采纳,获得10
20秒前
girl完成签到,获得积分10
21秒前
22秒前
华仔应助HAHAHA采纳,获得10
22秒前
22秒前
小坤同学发布了新的文献求助10
23秒前
24秒前
musejie应助科研通管家采纳,获得10
24秒前
科研通AI2S应助科研通管家采纳,获得10
24秒前
quhayley应助科研通管家采纳,获得10
24秒前
情怀应助科研通管家采纳,获得10
24秒前
Jasper应助科研通管家采纳,获得10
24秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
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 3988732
求助须知:如何正确求助?哪些是违规求助? 3531027
关于积分的说明 11252281
捐赠科研通 3269732
什么是DOI,文献DOI怎么找? 1804764
邀请新用户注册赠送积分活动 881869
科研通“疑难数据库(出版商)”最低求助积分说明 809021