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)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:R445.2;R685
【共引文獻(xiàn)】
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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(醫(yī)學(xué)版);2009年04期
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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;2011年03期
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7 湯振華;;64層螺旋CT血管成像在主動脈夾層動脈瘤的診斷價值[J];中國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];長治醫(yī)學(xué)院學(xué)報;2009年05期
9 唐振良;韓紅芬;;早期賁門癌的X線診斷[J];長治醫(yī)學(xué)院學(xué)報;2011年05期
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