Name: noninvasive assessment of cardiac abnormalities in experimental autoimmune myocarditis by magnetic resonance microscopy imaging in the mouse
Uploaded: 2014-06-20T15:00:00
Description: Watch this Scientific Journal Video about Noninvasive Assessment of Cardiac Abnormalities in Experimental Autoimmune Myocarditis by Magnetic Resonance Microscopy Imaging in the Mouse at JoVE.com

This work was supported by the National Institutes of Health (HL114669). CM is a recipient of a postdoctoral research fellowship grant awarded by the Myocarditis Foundation, NJ.

操守准则： 所有动物的程序均按照实验动物的护理和使用的指导原则进行，并经内布拉斯加林肯，内布拉斯加州林肯大学。 1，诱导实验性自身免疫性心肌炎<ol><li>通过在1x磷酸盐缓冲盐水中，以2 mg/1.5 ml的终浓度溶解MYHC-α334-352制备肽溶液。 </li><li>加入1无菌的1×PBS中的溶液，以含50μg冻干的PT，得到储备液浓度为50纳克/微升的小瓶中制备的...

<ol>
	<li>Heidenreich, P. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Forecasting+the+future+of+cardiovascular+disease+in+the+United+States:+a+policy+statement+from+the+American+Heart+Association.">Forecasting the future of cardiovascular disease in the United States: a policy statement from the American Heart Association.</a> Circulation. 123 (8), 933-944 (2011).</li><li>Fujinami, R. S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Molecular+mimicry,+bystander+activation,+or+viral+persistence:+infections+and+autoimmune+disease.">Molecular mimicry, bystander activation, or viral persistence: infections and autoimmune disease.</a> Clin Microbiol Rev. 19 (1), 80-94 (2006).</li><li>Cihakova, D., Rose, N. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pathogenesis+of+myocarditis+and+dilated+cardiomyopathy.">Pathogenesis of myocarditis and dilated cardiomyopathy.</a> Adv Immunol. 99, 95-114 (2008).</li><li>Donermeyer, D. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Myocarditis-inducing+epitope+of+myosin+binds+constitutively+and+stably+to+I-Ak+on+antigen-presenting+cells+in+the+heart.">Myocarditis-inducing epitope of myosin binds constitutively and stably to I-Ak on antigen-presenting cells in the heart.</a> J Exp Med. 182 (5), 1291-1300 (1995).</li><li>Gangaplara, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Coxsackievirus+B3+infection+leads+to+the+generation+of+cardiac+myosin+heavy+chain-alpha-reactive+CD4+T+cells+in+A/J+mice.">Coxsackievirus B3 infection leads to the generation of cardiac myosin heavy chain-alpha-reactive CD4 T cells in A/J mice.</a> Clin Immunol. 144 (3), 237-249 (2012).</li><li>Huber, S. A., Lodge, P. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Coxsackievirus+B-3+myocarditis+in+Balb/c+mice.+Evidence+for+autoimmunity+to+myocyte+antigens.">Coxsackievirus B-3 myocarditis in Balb/c mice. Evidence for autoimmunity to myocyte antigens.</a> Am J Pathol. 116 (1), 21-29 (1984).</li><li>Massilamany, C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Identification+of+novel+mimicry+epitopes+for+cardiac+myosin+heavy+chain-alpha+that+induce+autoimmune+myocarditis+in+A/J+mice.">Identification of novel mimicry epitopes for cardiac myosin heavy chain-alpha that induce autoimmune myocarditis in A/J mice.</a> Cell Immunol. 271, 438-449 (2011).</li><li>Pummerer, C. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Identification+of+cardiac+myosin+peptides+capable+of+inducing+autoimmune+myocarditis+in+BALB/c+mice.">Identification of cardiac myosin peptides capable of inducing autoimmune myocarditis in BALB/c mice.</a> J Clin Invest. 97 (9), 2057-2062 (1996).</li><li>Rose, N. R., Hill, S. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+pathogenesis+of+postinfectious+myocarditis.">The pathogenesis of postinfectious myocarditis.</a> Clin Immunol Immunopathol. 80, (1996).</li><li>Saraste, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Coronary+flow+reserve+and+heart+failure+in+experimental+coxsackievirus+myocarditis.+A+transthoracic+Doppler+echocardiography+study.">Coronary flow reserve and heart failure in experimental coxsackievirus myocarditis. A transthoracic Doppler echocardiography study.</a> Am J Physiol Heart Circ Physiol. 291, (2006).</li><li>Altes, T. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Hyperpolarized+3He+MR+lung+ventilation+imaging+in+asthmatics:+preliminary+findings.">Hyperpolarized 3He MR lung ventilation imaging in asthmatics: preliminary findings.</a> J Magn Reson Imaging. 13 (3), 378-384 (2001).</li><li>Driehuys, B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Small+animal+imaging+with+magnetic+resonance+microscopy.">Small animal imaging with magnetic resonance microscopy.</a> ILAR J. 49 (1), 35-53 (2008).</li><li>Smith, B. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Magnetic+resonance+microscopy+with+cardiovascular+applications.">Magnetic resonance microscopy with cardiovascular applications.</a> Trends Cardiovasc Med. 6 (8), 247-254 (1996).</li><li>Potter, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Magnetic+resonance+microscopy+approaches+to+molecular+imaging:+sensitivity+vs+specificity.">Magnetic resonance microscopy approaches to molecular imaging: sensitivity vs specificity.</a> J Cell Biochem Suppl. 39, 147-153 (2002).</li><li>Benveniste, H., Blackband, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=MR+microscopy+and+high+resolution+small+animal+MRI:+applications+in+neuroscience+research.">MR microscopy and high resolution small animal MRI: applications in neuroscience research.</a> Prog Neurobiol. 67, 393-420 (2002).</li><li>Epstein, F. H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=MR+tagging+early+after+myocardial+infarction+in+mice+demonstrates+contractile+dysfunction+in+adjacent+and+remote+regions.">MR tagging early after myocardial infarction in mice demonstrates contractile dysfunction in adjacent and remote regions.</a> Magn Reson Med. 48 (2), 399-403 (2002).</li><li>Gewalt, S. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=MR+microscopy+of+the+rat+lung+using+projection+reconstruction.">MR microscopy of the rat lung using projection reconstruction.</a> Magn Reson Med. 29 (1), 99-106 (1993).</li><li>Kern, M. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> The cardiac catheterization handbook., Edn 5th. , (2011).</li><li>Heiberg, E., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Design+and+validation+of+Segment--freely+available+software+for+cardiovascular+image+analysis.">Design and validation of Segment--freely available software for cardiovascular image analysis.</a> BMC Med Imaging. 10, (2010).</li><li>Cranney, G. B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Left+ventricular+volume+measurement+using+cardiac+axis+nuclear+magnetic+resonance+imaging.+Validation+by+calibrated+ventricular+angiography.">Left ventricular volume measurement using cardiac axis nuclear magnetic resonance imaging. Validation by calibrated ventricular angiography.</a> Circulation. 82 (1), 154-163 (1990).</li><li>Hiba, B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cardiac+and+respiratory+double+self-gated+cine+MRI+in+the+mouse+at+7+T.">Cardiac and respiratory double self-gated cine MRI in the mouse at 7 T.</a> Magn Reson Med. 55 (3), 506-513 (2006).</li><li>Bryant, D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cardiac+failure+in+transgenic+mice+with+myocardial+expression+of+tumor+necrosis+factor-alpha.">Cardiac failure in transgenic mice with myocardial expression of tumor necrosis factor-alpha.</a> Circulation. 97 (14), 1375-1381 (1998).</li><li>Neu, N., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cardiac+myosin-induced+myocarditis+as+a+model+of+postinfectious+autoimmunity.">Cardiac myosin-induced myocarditis as a model of postinfectious autoimmunity.</a> Eur Heart J. 12 Suppl D, 117-120 (1991).</li><li>Neumann, D. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Induction+of+multiple+heart+autoantibodies+in+mice+with+coxsackievirus+B3-+and+cardiac+myosin-induced+autoimmune+myocarditis.">Induction of multiple heart autoantibodies in mice with coxsackievirus B3- and cardiac myosin-induced autoimmune myocarditis.</a> J Immunol. 152 (1), 343-350 (1994).</li><li>Rose, N. R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Postinfectious+autoimmunity:+two+distinct+phases+of+coxsackievirus+B3-induced+myocarditis.">Postinfectious autoimmunity: two distinct phases of coxsackievirus B3-induced myocarditis.</a> Ann N Y Acad Sci. 475, 146-156 (1986).</li><li>Farmer, J. B., Levy, G. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+simple+method+for+recording+the+electrocardiogram+and+heart+rate+from+conscious+animals.">A simple method for recording the electrocardiogram and heart rate from conscious animals.</a> Br J Pharmacol Chemother. 32 (1), 193-200 (1968).</li></ol>

这项研究描述为一种非侵入性工具，以确定心脏异常的影响与自身免疫性心肌炎小鼠的MRM过程及其效用。由于EAM的组织学特征类似于人类感染后心肌炎小鼠模型通常用来描绘心肌损伤23-25 ​​的免疫机制。但是，患有心肌炎动物出现临床表现正常，诊断是基于在组织学实验7终止进行。动物通常是牺牲在21天接种后。评估这样的疾病过程在单个时间点的限制使用这些模型，尤其是在...

心脏衰竭是死亡的主要原因，心肌炎是心脏衰竭的青春少年1一个最主要的原因。患有心肌炎患者大多没有症状和疾病自发缓解2。然而，那些受影响的10-20％可发展为慢性疾病，导致扩张性心肌病（DCM）3。各种动物模型已经发展到研究心肌炎的免疫发病机制。这种疾病可以通过免疫动物与心肌肌球蛋白重链（MYHC）-α或其免疫显性肽片段或通过与病原体如柯萨奇病毒B3 4-9感染诱导的心肌炎敏感的A / J和Balb / c小鼠。这项研究涉及MYHC-α在A / J小鼠334-352引起的心肌炎。尽管显示心肌浸润，心肌炎影响的动物出现临床表现正常;诊断依据心脏炎症7的组织学评价ND超声心动图10。 磁共振显微镜（MRM）是一种常用的方法，得到心血管成像具有高分辨率的三维平面上，允许的功能细节，以评估微小血管的水平（高达10微米直径），但分辨能力的这种电平是无法实现与常规的磁共振成像（MRI）扫描程序，其中，该分辨率通常是获得可达1毫米11-14。 MRM提供了一个优点，因为它允许获得的高分辨率图像，以及在疾病过程14的早期时间点获得的性能参数。在临床上，MRM成像已被广泛应用于研究的病变心脏，肺或脑部15-17功能参数。在这项研究中，显示了一个使用MRM技术作为一种非侵入性工具，以确定受影响的自身免疫性心肌炎的A / J小鼠的心脏异常。具体来说，T他MRM成像允许的功能参数如左室（LV）舒张末期容积和射血分数（EF）以合理的准确性18定量。各参数的定义如下：LV舒张末期容积，血容量在左心室的舒张周期的结束，和射血分数，每搏输出量/舒张末期容积。使用对通过磁共振扫描器19获取的处理符合DICOM标准的心血管图像而开发的免费提供的分类软件进行数据分析。该数据显示在心肌炎动物的增加左心室壁的厚度，对应于左室舒张末期容积，每搏输出量和射血分数下降，与健康小鼠这些功能参数进行比较。

<table border="0" cellpadding="0" cellspacing="0" width="1185">
	<tbody>
		<tr height="25">
			<td height="25" style="height:25px;width:509px;">Myhc-a 334-352 (DSAFDVLSFTAEEKAGVYK)</td>
			<td style="width:364px;">Neopeptide, Cambridge, MA</td>
			<td style="width:145px;"></td>
			<td style="width:167px;">Store at 4&#959;C</td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">CFA</td>
			<td style="width:364px;">Sigma Aldrich, St Louis, MO</td>
			<td style="width:145px;">5881</td>
			<td>Store at 4&#959;C</td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">MTB&#160; H37Rv extract&#160;</td>
			<td>Difco Laboratories, Detroit, MI</td>
			<td>231141</td>
			<td>Store at 4&#959;C</td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">PT</td>
			<td>List Biologicals Laboratories, Campbell, CA</td>
			<td>181</td>
			<td>Store at 4&#959;C</td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">1x PBS&#160;</td>
			<td>Corning, Manassas, VA</td>
			<td>21-040-CV</td>
			<td>Store at 4&#959;C</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Isoflurane&#160;</td>
			<td>Piramal Healthcare, Mumbai, India</td>
			<td>NDC66794-013-25</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Female A/J mice&#160;</td>
			<td>Jackson Laboratories, Bar Harbor, ME</td>
			<td>646</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Leur-lok sterile 1 ml syrringe</td>
			<td>BD, Franklin Lakes, NJ</td>
			<td>309628</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Leur-lok sterile 3 ml syrringe</td>
			<td>BD, Franklin Lakes, NJ</td>
			<td>309657</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sterile needle, 18 G</td>
			<td>BD, Franklin Lakes, NJ</td>
			<td>305195</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sterile needle, 27 1/2 G</td>
			<td>BD, Franklin Lakes, NJ</td>
			<td>305109</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">3-way stopcock&#160;</td>
			<td>Smiths Medical ASD, Inc. Dublin, OH</td>
			<td>MX5311L</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Kerlix gauze bandage rolls&#160;</td>
			<td>Covidien, Mansfield, MA</td>
			<td>6720</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Kimwipes</td>
			<td>Kimberly-Clark Professional, Roswell, GA</td>
			<td>34155</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Protouch Stockinette&#160;</td>
			<td>Medline Industries, Mundelein, IL</td>
			<td>30-1001</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sterile surgical scissors and forceps</td>
			<td style="width:364px;">INOX tool Corporation</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Micro oven</td>
			<td style="width:364px;">GE Healthcare,&#160;</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">ThermiPAQ hot and cold therapy system&#160;</td>
			<td>Theramics Corporation, Springfield, IL</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Reptile heating lamp&#160;</td>
			<td>Energy Savers Unlimited, Inc. Carson, CA</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">3M Transpore tapes&#160;</td>
			<td>Target Corporation, MN</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Up and Up Polymyxin B sulfate/Bacitracin/Neomycin sulfate antibiotic ointment</td>
			<td>Target Corporation, MN</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">North Safety DeciDamp-2PVC foam ear plugs</td>
			<td style="width:364px;">North Safety Products, Smithfield, RI</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Cotton tipped applicator, 6&#8217;&#8217; wooden stem&#160;</td>
			<td>Jorgensen Laboratories, Inc. Loveland, CO</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Anesthesia induction chamber&#160;</td>
			<td>Summit Anesthesia Solutions, Ann Harbor, MI</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Summit Anesthesia Support system for regulating flow of anesthesia&#160;</td>
			<td>Summit Anesthesia Solutions, Ann Harbor, MI</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Specially designed animal holder</td>
			<td>Agilent Technologies, Santa Clara, CA</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Bickford&#160;Omnicon F/Air&#160;anesthesia gas filter unit&#160;</td>
			<td>A.M. Bickford, Inc. Wales Center, NY</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Pulse-oximeter module, MR compatible small animal monitoring and gating system&#160;</td>
			<td>Small Animal Instruments, Inc. Stony Brook, NY</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Oxygen cylinder&#160;</td>
			<td>Matheson-Tri Gas, North-Central Zone, Lincoln, NE</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Gas regulator&#160;</td>
			<td>Western Medica, West Lake, OH</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Signal breaking module, MR compatible small animal monitoring and gating system</td>
			<td>Small Animal Instruments, Inc. Stony Brook, NY</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">9.4 T (400 MHZ) 89 mm vertical core bore MR scanner&#160;</td>
			<td>Agilent Technologies, Santa Clara, CA</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">4-cm millipede micro-imaging RF coil&#160;</td>
			<td>Agilent Technologies, Santa Clara, CA</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">SAM PC monitor&#160;</td>
			<td>Small Animal Instruments, Inc. Stony Brook, NY</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Quantitative Medical Image analysis software&#160;</td>
			<td colspan="3">http://segment.heiberg.se;&#160; Segment v1.8 R1430,&#160; Medviso, Oresunds region, Sweden</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Matlab software&#160;</td>
			<td>The Mathworks, Inc.&#160; Natick, MA</td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Computer-Unix operating system</td>
			<td style="width:364px;"></td>
			<td style="width:145px;"></td>
			<td></td>
		</tr>
	</tbody>
</table>

noninvasive assessment of cardiac abnormalities in experimental autoimmune myocarditis by magnetic resonance microscopy imaging in the mouse

心肌炎是心肌的炎症，但对疾病的影响的那些表演的临床表现只〜10％。研究心肌损伤的免疫事件，心肌炎的各种小鼠模型已被广泛使用。这项研究涉及实验性自身免疫性心肌炎（EAM）诱导的心肌肌球蛋白重链（MYHC）-α的A / J小鼠334-352段;受影响的动物培养淋巴细胞性心肌炎，但没有明显的临床症状。在这个模型中，磁共振显微镜（MRM）作为一种非侵入性方式的实用程序来确定显示在免疫的动物MYHC-α334-352心脏结构和功能改变。 EAM和健康的小鼠用9.4 T（400兆赫）89 mm垂直芯孔扫描仪配备了4厘米千足虫射频成像探头和100克/厘米三轴梯度成像。从麻醉动物用梯度回波为基础的电影脉冲序列被收购心脏图像，和阿尼玛LS是由呼吸和脉搏血氧饱和度监测。该分析显示，增加心室壁在EAM小鼠的厚度，并相应减少心室的内部直径，当与正常小鼠相比较。该数据表明，在发炎的心脏形态和功能变化可能是由MRM非侵入性地监测在活的动物。总之，MRM提供评估引起的感染性疾病的药物的心肌损伤的进展和回归，以及响应于治疗的优点。

在这份报告中，显示MRM技术的实用程序作为一种非侵入性的方式来确定受影响的与EAM动物的心的结构和功能改变。心肌炎诱导在A / J小鼠进行免疫的动物在CFA 7 MYHC-α334-352，并且将动物进行的MRM实验第21天免疫后。在活的动物异氟烷麻醉下使用89毫米垂直孔磁铁配备了三轴梯度（最大强度100克/厘米）的MRM成像进行9.4 T（400 MHz为质子）。球探图像被收购的定位和定位小鼠心脏中的视场的中心?...

Watch this Scientific Journal Video about Noninvasive Assessment of Cardiac Abnormalities in Experimental Autoimmune Myocarditis by Magnetic Resonance Microscopy Imaging in the Mouse at JoVE.com

Noninvasive Assessment of Cardiac Abnormalities in Experimental Autoimmune Myocarditis by Magnetic Resonance Microscopy Imaging in the Mouse

This study demonstrates the successful establishment of magnetic resonance microscopy imaging as a non-invasive tool to assess the cardiac abnormalities in mice affected with autoimmune myocarditis. The data indicate that the technique can be used to monitor the disease-progression in live animals.

心脏异常的实验性自身免疫性心肌炎的无创性评估磁共振成像显微镜在鼠标

Myocarditis is an inflammation of the myocardium, but only ~10% of those affected show clinical manifestations of the disease. To study the immune events ...

Research

JoVE Journal

Medicine

Magnetic Resonance Derived Myocardial Strain Assessment Using Feature Tracking

磁共振衍生的心肌劳损评估使用特征跟踪

Purpose: An accurate and practical method to measure parameters like strain in myocardial tissue is of great clinical value, since it has been shown, that ...

科研

医学

Multi-modal Imaging of Angiogenesis in a Nude Rat Model of Breast Cancer Bone Metastasis Using Magnetic Resonance Imaging, Volumetric Computed Tomography and Ultrasound

利用磁共振成像，容积电脑断层扫描及超音波的裸鼠乳腺癌骨转移大鼠模型血管生成的多模态成像

Angiogenesis is an essential feature of cancer growth and metastasis formation. In bone metastasis, angiogenic factors are pivotal for tumor cell ...

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

磁共振扩散张量成像在神经退行性疾病的分析

Diffusion tensor imaging (DTI) techniques provide information on the microstructural processes of the cerebral white matter (WM) in vivo. The present ...

Implanting Glass Spinal Cord Windows in Adult Mice with Experimental Autoimmune Encephalomyelitis

玻璃植入脊髓的Windows在成年小鼠实验性自身免疫性脑脊髓炎

Experimental autoimmune encephalomyelitis (EAE) in adult rodents is the standard experimental model for studying autonomic demyelinating diseases such as ...

Simultaneous PET/MRI Imaging During Mouse Cerebral Hypoxia-ischemia

同时PET / MRI成像在小鼠脑缺氧缺血

Dynamic changes in tissue water diffusion and glucose metabolism occur during and after hypoxia in cerebral hypoxia-ischemia reflecting a bioenergetics ...

Assessment of Cardiac Morphological and Functional Changes in Mouse Model of Transverse Aortic Constriction by Echocardiographic Imaging

在横向主动脉缩窄的小鼠模型和心脏形态学评估功能改变通过超声心动图成像

Transverse aortic constriction (TAC) in mice has been used as a valuable model to study mechanisms of cardiac hypertrophy and heart failure1. A reliable ...

In Vivo Tracking of Edema Development and Microvascular Pathology in a Model of Experimental Cerebral Malaria Using Magnetic Resonance Imaging

In Vivo Tracking of Edema Development and Microvascular Pathology in a Model of Experimental Cerebral Malaria Using Magnetic Resonance Imaging

使用磁共振成像实验性脑疟疾模型中的水肿发育​​和微血管病理学的体内追踪

Cerebral malaria is a sign of severe malarial disease and is often a harbinger of death. While aggressive management can be life-saving, the detection of ...

Quantitative Visualization of Leukocyte Infiltrate in a Murine Model of Fulminant Myocarditis by Light Sheet Microscopy

通过轻型显微镜对小鼠急性心肌炎模型中白细胞浸润的定量可视化

Light-sheet fluorescence microscopy (LSFM), in combination with chemical clearing protocols, has become the gold standard for analyzing fluorescently ...

Cardiac Magnetic Resonance Imaging at 7 Tesla

7号特斯拉的心脏磁共振成像

CMR at an ultra-high field (magnetic field strength B0&#160;&#8805; 7 Tesla) benefits from the signal-to-noise ratio (SNR) advantage inherent at higher ...

Phase Contrast Magnetic Resonance Imaging in the Rat Common Carotid Artery

大鼠颈总动脉的相位对比磁共振成像

Phase contrast magnetic resonance imaging (PC-MRI) is a noninvasive approach that can quantify flow-related parameters such as blood flow. Previous ...