3.0T MR DTI及T2mapping成像在兔急性缺血性橫紋肌溶解癥中的應(yīng)用
[Abstract]:Objective: To investigate the imaging changes and pathological basis of acute ischemic rhabdomyolysis muscle injury on DTI and T2 mapping imaging, to explore the value of DTI and T2 mapping imaging in evaluating acute ischemic rhabdomyolysis muscle injury, and to evaluate the clinical application of DTI and T2 mapping imaging in patients with rhabdomyolysis. The disease provides experimental reference.
MATERIALS AND METHODS: Two rabbits were randomly selected from 32 New Zealand white rabbits for DSA examination before and 8 hours after modeling, which confirmed the feasibility of establishing acute ischemic rhabdomyolysis model. Blood 2-hour observation group; blood 4-hour observation group in group C; ischemia 6-hour observation group in group D; ischemia 8-hour observation group in group E; time point observation group in group A, B, C and D; magnetic resonance imaging, histopathological examination and apoptosis detection in each group at the corresponding observation time point, but magnetic resonance imaging continuous observation group in group E, before and after ischemia and deficiency. The changes of ischemia of left hind limb with time were dynamically observed by 9 magnetic resonance imaging (MR) in rabbits. After 9 MR examinations, the tissues were taken for histopathological examination and apoptosis detection. Axial T2WI-FS, T1WI, DTI, T2 mapping. DTI and T2 mapping data were processed at GE ADW4.4 post-processing workstation. ADC, FA, T2 values and fiber tracing images of the medial part of the left rectus femoris were obtained before and after ischemia. Histopathological examination (HE staining) and apoptosis detection (including TUNEL staining) were performed in the medial part of the left rectus femoris. Apoptosis index and Western blot were used to detect the relative expression level of activated caspase-3 protein.The imaging results were compared with histopathological results and apoptosis results to study the imaging changes of acute ischemic rhabdomyolysis muscle injury.
Results: On T2WI-FS images, the medial part of the left rectus femoris began to show progressive signal enhancement after 1 hour of ischemia; on T1WI images, the signal did not change significantly before and after ischemia; on fiber tracing images, muscle fibers became stiff, some muscle fibers were separated and displaced; ADC value was self-ischemic. The ADC value increased slowly at 7 hours after ischemia (P 0.05); the FA value increased progressively from 1 hour after ischemia, peaked at 4 hours after ischemia, and decreased slowly at 7 hours after ischemia (P 0.05); the T2 value increased progressively from 1 hour after ischemia. High, ischemia 4 hours peak, ischemia 6 hours T2 began to show a slow decline trend (P 0.05); HE staining showed that D group ischemia 6 hours granular degeneration, E group ischemia 8 hours myolysis; ADC value, T2 value and apoptosis index changes were moderately correlated, FA value and apoptosis index changes were low correlation; The expression of T2 and the relative expression level of activated caspase-3 protein were moderately correlated.
Conclusion: 1) ADC value, FA value and T2 value can reflect the pathological changes from myoedema to myolysis accurately and quantitatively in ischemic rhabdomyolysis. Fiber tracer imaging can visually show the changes of myofibrillar arrangement in ischemic muscle. DTI and T2 mapping imaging are used to evaluate the occurrence of rhabdomyolysis. 2) In the acute phase of rhabdomyolysis (8h), the ADC value of muscle injury decreased first and then increased, the FA value increased first and then decreased, the T2 value increased first and then decreased, and the fibers traced showed that the muscle fibers were stiff, and some of the muscle fibers were separated and displaced. 3) T2WI-FS Eliminating the interference of adipose tissue is a good sequence for monitoring the gross morphological changes of injured muscles in rhabdomyolysis.
【學(xué)位授予單位】:蘇州大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:R445.2;R685
【共引文獻(xiàn)】
相關(guān)期刊論文 前10條
1 謝雷;陳家驊;趙家貴;王松;;CT引導(dǎo)下靶位注射膠原酶聯(lián)合O_3椎間盤溶解術(shù)中突出物CT值與療效的關(guān)系[J];安徽醫(yī)學(xué);2010年03期
2 葉寅寅;吳永貴;;橫紋肌溶解癥并發(fā)急性腎衰竭的研究進(jìn)展[J];安徽醫(yī)學(xué);2010年12期
3 周宏偉;蘭文婧;劉洋;劉安;谷艷英;劉丹研;許冰;王軍;;彌散加權(quán)和彌散張量成像在腦梗死診斷中的應(yīng)用[J];吉林大學(xué)學(xué)報(bào)(醫(yī)學(xué)版);2009年04期
4 李毅;余錦鳳;尹嶺;崔光佐;;基于本體的神經(jīng)信息學(xué)概念及其關(guān)系研究[J];北京大學(xué)學(xué)報(bào)(醫(yī)學(xué)版);2009年02期
5 吳立強(qiáng);趙同貞;姜海明;孫斌;胡蓬勃;;急性重度有機(jī)磷中毒致橫紋肌溶解綜合征20例臨床分析[J];濱州醫(yī)學(xué)院學(xué)報(bào);2011年03期
6 吳少平;白琛;;我國(guó)臨床醫(yī)學(xué)專業(yè)本科《醫(yī)學(xué)影像學(xué)》教學(xué)狀況調(diào)查分析[J];成都醫(yī)學(xué)院學(xué)報(bào);2009年02期
7 湯振華;;64層螺旋CT血管成像在主動(dòng)脈夾層動(dòng)脈瘤的診斷價(jià)值[J];中國(guó)CT和MRI雜志;2012年03期
8 唐振良;趙海峰;張利華;;不典型肺癌的X線診斷探討[J];長(zhǎng)治醫(yī)學(xué)院學(xué)報(bào);2009年05期
9 唐振良;韓紅芬;;早期賁門癌的X線診斷[J];長(zhǎng)治醫(yī)學(xué)院學(xué)報(bào);2011年05期
10 李娜;王曉茵;;兒童急性胰腺炎的診治進(jìn)展[J];中國(guó)當(dāng)代兒科雜志;2007年04期
相關(guān)會(huì)議論文 前1條
1 張明才;石印玉;王翔;黃仕榮;程英武;詹紅生;;手法矯正寰樞關(guān)節(jié)骨錯(cuò)縫的有效性研究[A];第三屆中西醫(yī)結(jié)合脊柱及相關(guān)疾病學(xué)術(shù)年會(huì)論文集[C];2009年
相關(guān)博士學(xué)位論文 前10條
1 唐剛;人體典型運(yùn)動(dòng)生物力學(xué)仿真分析[D];上海交通大學(xué);2011年
2 曹錦軒;宰后牛肉成熟過(guò)程中肌細(xì)胞死亡生理研究[D];南京農(nóng)業(yè)大學(xué);2010年
3 趙天蘭;狹長(zhǎng)窄蒂長(zhǎng)寬比與任意皮瓣成活面積關(guān)系及其成活機(jī)理實(shí)驗(yàn)研究[D];蘇州大學(xué);2011年
4 王建秋;重組人Bikunin的制備及其抑制腫瘤浸潤(rùn)和轉(zhuǎn)移的研究[D];吉林大學(xué);2008年
5 劉易軍;人工加載對(duì)廢用性骨質(zhì)疏松大鼠脛骨影響的實(shí)驗(yàn)研究[D];吉林大學(xué);2009年
6 劉杰;運(yùn)動(dòng)后血清肌酸激酶異常增高的現(xiàn)象與ACE/CK-MM基因多態(tài)性研究[D];中國(guó)人民解放軍軍醫(yī)進(jìn)修學(xué)院;2009年
7 韓國(guó)鋒;α-MSH、EPO減輕橫紋肌溶解大鼠急性腎損傷和心臟術(shù)后AKI的臨床研究[D];復(fù)旦大學(xué);2009年
8 周建輝;肌紅蛋白誘導(dǎo)腎小管上皮細(xì)胞損傷的機(jī)制研究及免疫吸附裝置的構(gòu)建[D];中國(guó)人民解放軍軍醫(yī)進(jìn)修學(xué)院;2010年
9 付云銳;丹參酮ⅡA對(duì)腎缺血再灌注損傷的保護(hù)作用及其機(jī)制研究[D];重慶醫(yī)科大學(xué);2012年
10 高麗鳳;糖尿病大鼠視覺(jué)和嗅覺(jué)系統(tǒng)相關(guān)腦區(qū)擴(kuò)散異常的磁共振成像研究[D];中國(guó)科學(xué)院研究生院(武漢物理與數(shù)學(xué)研究所);2012年
相關(guān)碩士學(xué)位論文 前10條
1 董_g杰;鼻咽部超聲成像及其解剖基礎(chǔ)的研究[D];廣西醫(yī)科大學(xué);2011年
2 任文濤;大鼠離體心肌骨骼肌中肌紅蛋白降解與死亡時(shí)間的相關(guān)性研究[D];山西醫(yī)科大學(xué);2011年
3 沈宇;膽管結(jié)石合并膽管癌的臨床分析[D];山西醫(yī)科大學(xué);2011年
4 宣吉晴;彩色多普勒超聲對(duì)兔腎缺血再灌注后腎動(dòng)脈血流動(dòng)力學(xué)變化的評(píng)價(jià)及其與腎小管上皮細(xì)胞Bcl-2表達(dá)關(guān)系的研究[D];瀘州醫(yī)學(xué)院;2011年
5 李彥嫻;常規(guī)MRI與PWI對(duì)前列腺癌的診斷價(jià)值研究[D];昆明醫(yī)學(xué)院;2011年
6 沈君怡;CT能譜成像對(duì)肝臟占位病變鑒別診斷應(yīng)用價(jià)值的初步研究[D];福建醫(yī)科大學(xué);2011年
7 李青;烏司他丁對(duì)腦缺血再灌注損傷大鼠血腦屏障通透性和MMP-9活性的影響[D];鄭州大學(xué);2011年
8 陳亮;多層螺旋CT尿路成像(MSCTU)的不同掃描期相及圖像后處理技術(shù)對(duì)泌尿系先天畸形的診斷價(jià)值[D];華中科技大學(xué);2010年
9 張海彬;3.0T磁共振動(dòng)脈自旋標(biāo)記(ASL)技術(shù)對(duì)前列腺癌的診斷價(jià)值[D];華中科技大學(xué);2011年
10 榮鵬;勞力性熱射病致多器官功能衰竭的相關(guān)機(jī)制研究[D];泰山醫(yī)學(xué)院;2011年
本文編號(hào):2217868
本文鏈接:http://sikaile.net/yixuelunwen/fangshe/2217868.html