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学科主题: 临床医学
题名:
Evaluation of the tardus-parvus pattern in patients with atherosclerotic and nonatherosclerotic renal artery stenosis
作者: Li, Jian-chu; Yuan, Yan; Qin, Wei; Wang, Lei; Dai, Qing; Qi, Zhen-hong; Meng, Hua; Cai, Sheng; Jiang, Yu-xin
关键词: Doppler ; hemodynamics ; renal artery stenosis ; sonography
刊名: JOURNAL OF ULTRASOUND IN MEDICINE
发表日期: 2007-04-01
卷: 26, 期:4, 页:419-426
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Acoustics ; Radiology, Nuclear Medicine & Medical Imaging
研究领域[WOS]: Acoustics ; Radiology, Nuclear Medicine & Medical Imaging
关键词[WOS]: WAVE-FORM PARAMETERS ; DOPPLER SONOGRAPHY ; RESISTIVE INDEX ; DISEASE ; US ; ULTRASOUND ; SYSTOLE
英文摘要:

Objective. The aim of this study was to evaluate the differences in the tardus-parvus pattern between atherosclerotic and nonatherosclerotic renal artery stenosis (RAS) and to explore the causes of these differences. Methods. In 81 patients, including a nonatherosclerotic group (29 cases of Takayasu arteritis and 22 cases of fibromuscular dysplasia) and an atherosclerotic group (n = 30), RAS was detected by color Doppler sonography and confirmed by renal arteriography. Doppler spectra were obtained at the upper, middle, and lower pole interlobar arteries, and the one with the most prolonged acceleration time (AT) was selected for recording the AT and resistive index (RI). Results. Renal angiography revealed 16 moderate RASs, 80 severe RASs, and 15 occlusions. No statistically significant differences were found in the AT between the atherosclerotic and nonatherosclerotic groups in the mild (P = .24), moderate (P = .63), and severe stenotic (P = .41) subgroups; however, there were statistically significant differences in the RI between the atherosclerotic and nonatherosclerotic groups in the mild (P < .001), moderate (P < .01), and severe (P < .001) subgroups. The RI values in the atherosclerotic group were much higher than those in the nonatherosclerotic group for the 3 stenotic subgroups. Conclusions. The AT measurement method used widely now cannot differentiate potential differences in pulsus-tardus waveforms between atherosclerotic and nonatherosclerotic RAS; however, it remains a useful approach to detect RAS. Different RI cutoff values should be established according to atherosclerotic and nonatherosclerotic RAS, and consideration of influencing factors for the RI will help reduce misdiagnosis.

语种: 英语
WOS记录号: WOS:000245166400001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/61265
Appears in Collections:北京大学第一临床医学院_肾脏内科_期刊论文

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作者单位: 1.Chinese Acad Med Sci, Peking Union Med Coll Hosp, Dept Ultrasonog, Beijing 100730, Peoples R China
2.Peking Union Med Coll, Beijing, Peoples R China
3.Peking Univ, Hosp 1, Dept Nephrol, Beijing, Peoples R China

Recommended Citation:
Li, Jian-chu,Yuan, Yan,Qin, Wei,et al. Evaluation of the tardus-parvus pattern in patients with atherosclerotic and nonatherosclerotic renal artery stenosis[J]. JOURNAL OF ULTRASOUND IN MEDICINE,2007,26(4):419-426.
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