IR@PKUHSC  > 北京大学第一临床医学院  > 放射治疗科
学科主题临床医学
Subclinical Carotid Atherosclerosis: Short-term Natural History of Lipid-rich Necrotic Core-A Multicenter Study with MR Imaging
Sun, Jie1; Balu, Niranjan1; Hippe, Daniel S.1; Xue, Yunjing3; Dong, Li4; Zhao, Xihai5; Li, Feiyu6; Xu, Dongxiang1; Hatsukami, Thomas S.2; Yuan, Chun1
刊名RADIOLOGY
2013-07-01
DOI10.1148/radiol.13121702
268期:1页:61-68
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Radiology, Nuclear Medicine & Medical Imaging
研究领域[WOS]Radiology, Nuclear Medicine & Medical Imaging
关键词[WOS]HIGH-RESOLUTION MRI ; IN-VIVO ; LOWERING THERAPY ; INTRAPLAQUE HEMORRHAGE ; PLAQUE PROGRESSION ; FOLLOW-UP ; CORONARY ATHEROSCLEROSIS ; INTRAVASCULAR ULTRASOUND ; FIBROUS-CAP ; TIME-COURSE
英文摘要

Purpose: To use magnetic resonance (MR) imaging to examine the short-term (6 months) natural history of the lipid-rich necrotic core (LRNC) in carotid artery plaques by examining the placebo group of a multicenter clinical trial.

Materials and Methods: Study procedures and consent forms were approved by the institutional review board for this HIPAA-compliant study. Written informed consent was obtained for all enrolled subjects. Subjects in the placebo group of a multicenter clinical trial who showed LRNC at screening MR imaging had a follow-up MR imaging examination after 6 months. Lumen and wall volumes and LRNC volume and percentage were measured on images from both examinations by readers who were blinded to the time sequence. Plaque progression was calculated as annualized change in common coverage by using the carotid artery bifurcation as a landmark. Associations of clinical and imaging variables with LRNC progression were examined by using linear regression analysis.

Results: Fifty-nine of 73 (81%) subjects completed the study, with a mean interval +/- standard deviation of 6.9 months +/- 1.0. The mean progression rates per year 6 standard deviation of LRNC volume and percentage were -5.2 mm(3) +/- 34.3 (P = .249) and -1.74% +/- 6.27% (P = .038), respectively. Of the clinical and imaging variables examined, presence of intraplaque hemorrhage (IPH) was significantly associated with LRNC progression (P = .001). Plaques with IPH had increased LRNC volume per year (62.9 mm(3) +/- 46.2 vs -8.8 mm(3) +/- 29.9, P<.001) and percentage per year (3.67% +/- 1.85% vs -2.03% +/- 6.30%, P = .126) compared with those without IPH. Spearman correlation analysis showed that change in LRNC positively correlated with change in wall volume (rho = 0.60, P<.001), but not with change in lumen volume (rho = 20.17, P = .201).

Conclusion: Serial MR imaging of the carotid artery allowed observation of changes in LRNC over a short follow-up period and demonstrated the complexity of plaque progression patterns related to tissue composition. LRNC progression may be influenced not only by clinical characteristics, but also and to a large extent by plaque characteristics such as IPH. (C) RSNA, 2013

语种英语
WOS记录号WOS:000320761400007
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/51096
Collection北京大学第一临床医学院_放射治疗科
北京大学第一临床医学院_医学影像科
作者单位1.Union Hosp, Dept Radiol, Fuzhou, Peoples R China
2.Anzhen Hosp, Dept Radiol, Beijing, Peoples R China
3.Univ Washington, Dept Radiol, Seattle, WA 98109 USA
4.Univ Washington, Dept Surg, Seattle, WA 98109 USA
5.Tsinghua Univ, Sch Med, Ctr Biomed Imaging Res, Beijing 100084, Peoples R China
6.Peking Univ, Hosp 1, Dept Radiol, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Sun, Jie,Balu, Niranjan,Hippe, Daniel S.,et al. Subclinical Carotid Atherosclerosis: Short-term Natural History of Lipid-rich Necrotic Core-A Multicenter Study with MR Imaging[J]. RADIOLOGY,2013,268(1):61-68.
APA Sun, Jie.,Balu, Niranjan.,Hippe, Daniel S..,Xue, Yunjing.,Dong, Li.,...&Yuan, Chun.(2013).Subclinical Carotid Atherosclerosis: Short-term Natural History of Lipid-rich Necrotic Core-A Multicenter Study with MR Imaging.RADIOLOGY,268(1),61-68.
MLA Sun, Jie,et al."Subclinical Carotid Atherosclerosis: Short-term Natural History of Lipid-rich Necrotic Core-A Multicenter Study with MR Imaging".RADIOLOGY 268.1(2013):61-68.
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