Impact of source data on the interpretation of contrast-enhanced magnetic resonance angiography of the lower limbs

被引：1

作者：

Lewis M. ^{[1
]}

Venumbaka M. ^{[2
]}

Gill K. ^{[3
]}

Cannon J. ^{[4
]}

Clark A. ^{[5
]}

Toms A.P. ^{[1
]}

Malcolm P.N. ^{[1
]}

机构：

[1] Department of Radiology, Norfolk and Norwich University Hospital, Colney Lane

[2] Department of Radiology, Colchester General Hospital, Colchester, Essex CO4 5JL, Turner Road

[3] Department of Radiology, Royal Shrewsbury Hospital, Shrewsbury and Telford Hospital NHS Trust, Shrewsbury SY3 8XQ, Mytton Oak Road

[4] Department of Radiology, Queen Margaret Hospital, Dunfermline KY12 OSU, Whitefield Road

[5] School of Medicine, Health Policy and Practice University of East Anglia, Norwich

来源：

BMC Research Notes | / 7卷 / 1期

关键词：

MRA; Source data; Venous contamination;

D O I：

10.1186/1756-0500-7-263

中图分类号：

学科分类号：

摘要：

Background: The primary purpose of this study is to examine whether use of source data is effective in increasing the number of arterial segments that can be interpreted from maximum intensity projections of lower limb MR angiograms. Correlation between sites of arterial disease and venous contamination was also measured. Interpretation of source data is performed routinely by radiologists, but the value of this has not been well studied with randomized studies. Results: The proportion of segments visible above the knee was 87% using maximal intensity projection alone (MIP) and 88% when the MIP was combined with source data. The proportions were 67% for MIP and 72% for MIP plus source data below the knee. There was substantial agreement between presence of arterial disease and venous contamination in the calf and thigh. Conclusion: The use of source data increases the number of assessable segments, but not individuals, by a statistically significant but small amount (1.2%, p <0.05). This study supports the association between arterial disease and venous contamination. © 2014 Lewis et al.; licensee BioMed Central Ltd.

引用

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