不同回波時間對擴(kuò)散加權(quán)成像人腦體素不相干運(yùn)動參數(shù)的影響
[Abstract]:Objective to investigate the effect of different echo time (TE) on (IVIM) parameters of DWI human brain incoherent motion. Methods Multi-b magnetic resonance diffusion weighted imaging (MB-DWI) was performed in 14 healthy volunteers, and 16 b values were obtained by using 0 1 000 s/mm~2. The TE values were 65 ms, and 85 105 ms, respectively. After double exponential model processing, fen D* and D parameter maps were obtained. The F D * and D values of bilateral caudate head, putamen and half oval center were measured and statistically analyzed. Results with the increase of TE, the signal of gray matter in basal nucleus decreased gradually, and the signal of white matter in the center of semiovale was enhanced. The f value of caudate head, putamen nucleus and centrum of semiovale increased gradually (P 0.001), and the D * value of caudate head and putamen decreased gradually (P 0.05), but there was no significant difference in D * value of center of semiovale (P0.05). There was no significant difference in D values of caudate head, putamen nucleus and semicircular center in different TE (all P 0. 05). The D values of caudate head, putamen nucleus and semioval center decreased in turn at the same TE (all P 0.001). Conclusion TE has great influence on f and D * values, but less on D value. More accurate IVIM parameters can be obtained by selecting appropriate TE for different brain tissues.
【作者單位】: 南京軍區(qū)南京總醫(yī)院醫(yī)學(xué)影像科;徐州醫(yī)學(xué)院研究生學(xué)院;
【分類號】:R322.81;R445.2
【參考文獻(xiàn)】
相關(guān)期刊論文 前1條
1 張玉琴;徐海東;董海波;王波;徐田勇;;動脈自旋標(biāo)記法與體素內(nèi)不相干運(yùn)動成像在膠質(zhì)瘤術(shù)前應(yīng)用[J];中國臨床醫(yī)學(xué)影像雜志;2014年09期
【二級參考文獻(xiàn)】
相關(guān)期刊論文 前5條
1 彭雯佳;王鶴;陸建平;徐遠(yuǎn)志;張琪;陳士躍;;拉伸指數(shù)模型DWI對大鼠急性腦缺血的研究[J];放射學(xué)實踐;2012年07期
2 楊冬;王忠誠;邱曉光;江濤;張亞卓;;放、化療同步治療高級別膠質(zhì)瘤[J];中華神經(jīng)外科疾病研究雜志;2007年05期
3 聶文潔;遲菁華;紀(jì)祥瑞;王良忠;;星形細(xì)胞腫瘤組織MMP-2與TIMP-1、TIMP-2的表達(dá)[J];齊魯醫(yī)學(xué)雜志;2006年02期
4 任靜;宦怡;常英娟;趙海濤;葛雅麗;張勁松;劉燕麗;徐俊卿;;前列腺癌多b值擴(kuò)散加權(quán)成像研究[J];實用放射學(xué)雜志;2008年04期
5 溫洋,戴建平,高培毅,李少武,孫學(xué)進(jìn);ASL在膠質(zhì)瘤分級中的初步應(yīng)用[J];中國醫(yī)學(xué)影像技術(shù);2005年09期
【相似文獻(xiàn)】
相關(guān)期刊論文 前6條
1 黃海東;顧建文;楊春敏;趙凱;夏勛;楊文濤;;正常人半卵圓中心質(zhì)子磁共振波譜研究[J];神經(jīng)疾病與精神衛(wèi)生;2008年01期
2 王卿;;正常腦成熟的MRI[J];國外醫(yī)學(xué)(臨床放射學(xué)分冊);1992年06期
3 楊志勇;全紅;月強(qiáng);任雯廷;曹婷;龔啟勇;;人腦內(nèi)脂質(zhì)代謝產(chǎn)物的磁共振質(zhì)子波譜[J];中國醫(yī)學(xué)影像技術(shù);2011年07期
4 趙翕平;CT對診斷Fahr綜合征的價值[J];國外醫(yī)學(xué).神經(jīng)病學(xué)神經(jīng)外科學(xué)分冊;1985年06期
5 楊成梅,顧國岳,譚蘭;半卵圓中心腦梗死58例臨床分析[J];山東醫(yī)藥;2005年01期
6 ;[J];;年期
相關(guān)碩士學(xué)位論文 前1條
1 吳迪;2型糖尿病腦內(nèi)結(jié)構(gòu)改變的功能磁共振研究[D];昆明醫(yī)科大學(xué);2014年
,本文編號:2379236
本文鏈接:http://sikaile.net/yixuelunwen/shiyanyixue/2379236.html