Parametric Color Coding of Digital Subtraction Angiography

被引：113

作者：

Strother, C. M. ^{[1
]}

Bender, F. ^{[2
]}

Deuerling-Zheng, Y. ^{[2
]}

Royalty, K. ^{[3
]}

Pulfer, K. A. ^{[1
]}

Baumgart, J. ^{[3
]}

Zellerhoff, M. ^{[2
]}

Aagaard-Kienitz, B. ^{[1
]}

Niemann, D. B. ^{[1
]}

Lindstrom, M. L. ^{[4
]}

机构：

[1] Univ Wisconsin Hosp & Clin, Madison, WI 53792 USA

[2] Siemens AG, Healthcare Sector, Forchheim, Germany

[3] Siemens Med Solut, Angiog Div, Hoffman Estates, IL USA

[4] Univ Wisconsin, Dept Biostat, Madison, WI 53792 USA

来源：

AMERICAN JOURNAL OF NEURORADIOLOGY | 2010年 / 31卷 / 05期

关键词：

CT;

D O I：

10.3174/ajnr.A2020

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

BACKGROUND AND PURPOSE Color has been shown to facilitate both visual search and recognition tasks It was our purpose to examine the impact of a color-coding algorithm on the interpretation of 2D-DSA acquisitions by experienced and inexperienced observers MATERIALS AND METHODS Twenty-six 2D-DSA acquisitions obtained as part of routine clinical care from subjects with a variety of cerebrovascular disease processes were selected from an internal data base so as to include a variety of disease states (aneurysms, AVMs, fistulas, stenosis, occlusions, dissections, and tumors) Three experienced and 3 less experienced observers were each shown the acquisitions on a prerelease version of a commercially available double-monitor workstation (XVVP, Siemens Healthcare) Acquisitions were presented first as a subtracted image series and then as a single composite color-coded image of the entire acquisition Observers were then asked a series of questions designed to assess the value of the color-coded images for the following purposes 1) to enhance their ability to make a diagnosis, 2) to have confidence in their diagnosis, 3) to plan a treatment, and 4) to judge the effect of a treatment The results were analyzed by using 1-sample Wilcoxon tests RESULTS Color-coded images enhanced the ease of evaluating treatment success in >40% of cases (P < 0001) They also had a statistically significant impact on treatment planning, making planning easier in >20% of the cases (P = 0069) In >20% of the examples, color-coding made diagnosis and treatment planning easier for all readers (P < 0001) Color-coding also increased the confidence of diagnosis compared with the use of DSA alone (P = 056) The impact of this was greater for the naive readers than for the expert readers CONCLUSIONS-At no additional cost in x-ray dose or contrast medium, color-coding of DSA enhanced the conspicuity of findings on DSA images It was particularly useful in situations in which there was a complex flow pattern and in evaluation of pre- and posttreatment acquisitions Its full potential remains to be defined

引用

页码：919 / 924

页数：6

共 9 条

[1] Impact of Intra-Arterial Injection Parameters on Arterial, Capillary, and Venous Time-Concentration Curves in a Canine Model [J].