Possible use of digital variance angiography in uterine fibroid embolization: a retrospective observational study.

IF 1.4 4区 医学 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Viktor Bérczi, Szuzina Fazekas, István Góg, Marcell Gyánó, Ambrus Tóth, Ákos Bérczi, Osama Habeeballah, Krzysztof Pyra, Zoltán Harmat, Dat Tin Nguyen
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引用次数: 0

Abstract

Purpose: Digital variance angiography (DVA), a recently developed image processing technology, provides a higher contrast-to-noise ratio (CNR) and better image quality during lower limb interventions than digital subtraction angiography (DSA). Our aim was to investigate whether the quality reserve of DVA can also be observed in uterine fibroid embolization (UFE).

Methods: In this retrospective observational study, the CNR and image quality of DSA and DVA images from 56 patients (mean ± standard deviation age: 44.2 ± 5.3 years) who underwent UFE at our institution were assessed. For the visual evaluation of the same image pairs, the visibility of large vessels, small vessels, tissue blush, and background noise was compared by three experienced readers using a four-grade Likert scale. Data were analyzed using the Wilcoxon signed-rank test or the one-sample Wilcoxon test.

Results: DVA provided significantly higher CNR than DSA (the median CNRDVA/CNRDSA was 1.96). In the visual comparison of DVA and DSA images, Likert scores did not significantly differ from zero (equal quality level) in any evaluated categories. The median (interquartile range) values were 0.00 (1.00) for large vessels, -0.33 (1.33) for small vessels, 0.00 (0.67) for tissue blush, and 0.00 (0.75) for background noise.

Conclusion: Although the visual image quality of DSA and DVA was identical, DVA provided a twofold CNR in UFE, indicating a significant quality advantage for this technology.

Clinical significance: The observed quality reserve may allow for dose management (reduction of applied radiation dose and/or contrast media), enhancing the safety of UFE for both patients and personnel.

数字方差血管造影在子宫肌瘤栓塞中的可能应用:一项回顾性观察研究。
目的:数字方差血管造影(DVA)是最近发展起来的一种图像处理技术,在下肢干预中比数字减影血管造影(DSA)提供更高的噪比(CNR)和更好的图像质量。我们的目的是探讨DVA的质量储备是否也可以在子宫肌瘤栓塞(UFE)中观察到。方法:回顾性观察56例(平均±标准差年龄:44.2±5.3岁)在我院接受UFE治疗的患者,对其DSA和DVA图像的CNR和图像质量进行评估。对于同一图像对的视觉评价,由三名经验丰富的读者使用四级李克特量表比较大血管,小血管,组织腮红和背景噪声的可见性。数据分析采用Wilcoxon符号秩检验或单样本Wilcoxon检验。结果:DVA的CNR明显高于DSA(中位CNRDVA/CNRDSA为1.96)。在DVA和DSA图像的视觉比较中,Likert评分在任何评估类别中都没有显着差异于零(同等质量水平)。大血管的中位数(四分位数范围)为0.00(1.00),小血管为-0.33(1.33),组织腮红为0.00(0.67),背景噪声为0.00(0.75)。结论:虽然DSA和DVA的视觉图像质量相同,但DVA在UFE中提供了两倍的CNR,表明该技术具有显著的质量优势。临床意义:观察到的质量储备可用于剂量管理(减少辐照剂量和/或造影剂),提高UFE对患者和工作人员的安全性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Diagnostic and interventional radiology
Diagnostic and interventional radiology Medicine-Radiology, Nuclear Medicine and Imaging
自引率
4.80%
发文量
0
期刊介绍: Diagnostic and Interventional Radiology (Diagn Interv Radiol) is the open access, online-only official publication of Turkish Society of Radiology. It is published bimonthly and the journal’s publication language is English. The journal is a medium for original articles, reviews, pictorial essays, technical notes related to all fields of diagnostic and interventional radiology.
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