Name: computed tomography and optical imaging of osteogenesis-angiogenesis coupling to assess integration of cranial bone autografts and allografts
Uploaded: 2015-12-22T13:00:00
Description: Watch this Scientific Journal Video about Computed Tomography and Optical Imaging of Osteogenesis-angiogenesis Coupling to Assess Integration of Cranial Bone Autografts and Allografts at JoVE.com

The authors acknowledge funding from the NIDCR (Grant No. DE019902) and from the Israeli Science Foundation (Grant No. 382/13).

该协议遵循耶路撒冷，以色列（申请号MD-12-13524-4），经批准AAALAC设施和由雪松 - 西奈医学中心的希伯来大学的体制动物护理和使用委员会（IACUC）的指导方针IACUC（申请号3770）。这些动物是在严格遵守美国国立卫生研究院的指导方针进行处理。 1.准备骨移植物<ol><li>安乐死7〜8周龄的Balb / C小鼠，或任何应变来自受体不同，使用的CO 2的吸入或腹腔注射50微升苯巴比妥?...

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	<li>Finkemeier, C. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Bone-grafting+and+bone-graft+substitutes.">Bone-grafting and bone-graft substitutes.</a> J Bone Joint Surg Am. 84-A (3), 454-464 (2002).</li><li>Kanczler, J. M., Oreffo, R. O. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Osteogenesis+and+angiogenesis:+the+potential+for+engineering+bone.">Osteogenesis and angiogenesis: the potential for engineering bone.</a> Eur Cell Mater. 15, 100-114 (2008).</li><li>Schipani, E., Maes, C., Carmeliet, G., Semenza, G. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Regulation+of+osteogenesis-angiogenesis+coupling+by+HIFs+and+VEGF.">Regulation of osteogenesis-angiogenesis coupling by HIFs and VEGF.</a> J Bone Miner Res. 24 (8), 1347-1353 (2009).</li><li>Huang, 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=Spatiotemporal+Analyses+of+Osteogenesis+and+Angiogenesis+via+Intravital+Imaging+in+Cranial+Bone+Defect.">Spatiotemporal Analyses of Osteogenesis and Angiogenesis via Intravital Imaging in Cranial Bone Defect.</a> J Bone Miner Res. , (2015).</li><li>Kimelman-Bleich, 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=The+use+of+a+synthetic+oxygen+carrier-enriched+hydrogel+to+enhance+mesenchymal+stem+cell-based+bone+formation+in+vivo.">The use of a synthetic oxygen carrier-enriched hydrogel to enhance mesenchymal stem cell-based bone formation in vivo.</a> Biomaterials. 30 (27), 4639-4648 (2009).</li><li>Iris, 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=Molecular+imaging+of+the+skeleton:+quantitative+real-time+bioluminescence+monitoring+gene+expression+in+bone+repair+and+development.">Molecular imaging of the skeleton: quantitative real-time bioluminescence monitoring gene expression in bone repair and development.</a> J Bone Miner Res. 18 (3), 570-578 (2003).</li><li>Bouxsein, M. 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=Guidelines+for+assessment+of+bone+microstructure+in+rodents+using+micro-computed+tomography.">Guidelines for assessment of bone microstructure in rodents using micro-computed tomography.</a> J Bone Miner Res. 25 (7), 1468-1486 (2010).</li><li>Lim, E., Modi, K. D., Kim, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+vivo+bioluminescent+imaging+of+mammary+tumors+using+IVIS+spectrum.">In vivo bioluminescent imaging of mammary tumors using IVIS spectrum.</a> J Vis Exp. (26), (2009).</li><li>Kallai, I., 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=Microcomputed+tomography-based+structural+analysis+of+various+bone+tissue+regeneration+models.">Microcomputed tomography-based structural analysis of various bone tissue regeneration models.</a> Nat Protoc. 6 (1), 105-110 (2011).</li><li>Fleming, J. T., 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=Bone+blood+flow+and+vascular+reactivity.">Bone blood flow and vascular reactivity.</a> Cells Tissues Organs. 169 (3), 279-284 (2001).</li><li>Dhillon, 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=PTH-enhanced+structural+allograft+healing+is+associated+with+decreased+angiopoietin-2-mediated+arteriogenesis,+mast+cell+accumulation,+and+fibrosis.">PTH-enhanced structural allograft healing is associated with decreased angiopoietin-2-mediated arteriogenesis, mast cell accumulation, and fibrosis.</a> J Bone Miner Res. 28 (3), 586-597 (2013).</li><li>Nebuloni, L., Kuhn, G. A., Vogel, J., Muller, R. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+novel+in+vivo+vascular+imaging+approach+for+hierarchical+quantification+of+vasculature+using+contrast+enhanced+micro-computed+tomography.">A novel in vivo vascular imaging approach for hierarchical quantification of vasculature using contrast enhanced micro-computed tomography.</a> PLoS One. 9 (1), e86562 (2014).</li><li>Zhang, X., 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=Periosteal+progenitor+cell+fate+in+segmental+cortical+bone+graft+transplantations:+implications+for+functional+tissue+engineering.">Periosteal progenitor cell fate in segmental cortical bone graft transplantations: implications for functional tissue engineering.</a> J Bone Miner Res. 20 (12), 2124-2137 (2005).</li><li>Movahed, R., Pinto, L. P., Morales-Ryan, C., Allen, W. R., Wolford, L. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Application+of+cranial+bone+grafts+for+reconstruction+of+maxillofacial+deformities.">Application of cranial bone grafts for reconstruction of maxillofacial deformities.</a> Proc (Bayl Univ Med Cent). 26 (3), 252-255 (2013).</li><li>Putters, T. F., Schortinghuis, J., Vissink, A., Raghoebar, G. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+prospective+study+on+the+morbidity+resulting+from+calvarial+bone+harvesting+for+intraoral+reconstruction.">A prospective study on the morbidity resulting from calvarial bone harvesting for intraoral reconstruction.</a> Int J Oral Maxillofac Surg. , (2015).</li><li>Kline, R. M., Wolfe, S. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Complications+associated+with+the+harvesting+of+cranial+bone+grafts.">Complications associated with the harvesting of cranial bone grafts.</a> Plast Reconstr Surg. 95 (1), 5-13 (1995).</li><li>Hassanein, A. 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=Effect+of+calvarial+burring+on+resorption+of+onlay+cranial+bone+graft.">Effect of calvarial burring on resorption of onlay cranial bone graft.</a> J Craniofac Surg. 23 (5), 1495-1498 (2012).</li><li>Yin, J., Jiang, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Completely+resorption+of+autologous+skull+flap+after+orthotopic+transplantation:+a+case+report.">Completely resorption of autologous skull flap after orthotopic transplantation: a case report.</a> Int J Clin Exp Med. 7 (4), 1169-1171 (2014).</li><li>Schuss, P., 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=Bone+flap+resorption:+risk+factors+for+the+development+of+a+long-term+complication+following+cranioplasty+after+decompressive+craniectomy.">Bone flap resorption: risk factors for the development of a long-term complication following cranioplasty after decompressive craniectomy.</a> J Neurotrauma. 30 (2), 91-95 (2013).</li><li>Ben Arav, 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=Adeno-associated+virus-coated+allografts:+a+novel+approach+for+cranioplasty.">Adeno-associated virus-coated allografts: a novel approach for cranioplasty.</a> J Tissue Eng Regen Med. 6 (10), e43-e50 (2012).</li><li>Ito, 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=Remodeling+of+cortical+bone+allografts+mediated+by+adherent+rAAV-RANKL+and+VEGF+gene+therapy.">Remodeling of cortical bone allografts mediated by adherent rAAV-RANKL and VEGF gene therapy.</a> Nat Med. 11 (3), 291-297 (2005).</li><li>Sheyn, 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=PTH+promotes+allograft+integration+in+a+calvarial+bone+defect.">PTH promotes allograft integration in a calvarial bone defect.</a> Mol Pharm. 10 (12), 4462-4471 (2013).</li><li>Jain, R. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Molecular+regulation+of+vessel+maturation.">Molecular regulation of vessel maturation.</a> Nat Med. 9 (6), 685-693 (2003).</li><li>Reginato, S., Gianni-Barrera, R., Banfi, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Taming+of+the+wild+vessel:+promoting+vessel+stabilization+for+safe+therapeutic+angiogenesis.">Taming of the wild vessel: promoting vessel stabilization for safe therapeutic angiogenesis.</a> Biochem Soc Trans. 39 (6), 1654-1658 (2011).</li><li>Moutsatsos, I. K., 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=Exogenously+regulated+stem+cell-mediated+gene+therapy+for+bone+regeneration.">Exogenously regulated stem cell-mediated gene therapy for bone regeneration.</a> Mol Ther. 3 (4), 449-461 (2001).</li><li>Deckers, M. M., 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=Bone+morphogenetic+proteins+stimulate+angiogenesis+through+osteoblast-derived+vascular+endothelial+growth+factor.">Bone morphogenetic proteins stimulate angiogenesis through osteoblast-derived vascular endothelial growth factor.</a> A. Endocrinology. 143 (4), 1545-1553 (2002).</li><li>Cornejo, 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=Effect+of+adipose+tissue-derived+osteogenic+and+endothelial+cells+on+bone+allograft+osteogenesis+and+vascularization+in+critical-sized+calvarial+defects.">Effect of adipose tissue-derived osteogenic and endothelial cells on bone allograft osteogenesis and vascularization in critical-sized calvarial defects.</a> Tissue Eng Part A. 18 (15-16), 1552-1561 (2012).</li></ol>

这里描述的多模成像方法的目的是为了使血管发生成骨轴的颅骨移植的上下文细致的调查。使用μCT协议，这使得血管树的准确高分辨率三维演示喂养整个颅骨缺损新生血管成像。 μCT数据可以使用先进的工具，如IPL的软件很容易分析。例如， 在图3C中示出的厚度的分析显示，自体颅和同种异体移植物之间的主要差别是在容器为0.1至0.08毫米的直径，其表征血液动脉10。这一结果...

颅面骨量丢失，由于外伤，肿瘤切除，开颅减压术，先天性缺陷很少治愈本身，并提出了明确的未满足的临床需求。自体骨移植物和同种异体骨移植物被广泛地用于治疗这些病症1。 它已被广泛接受的成骨紧密结合与血管生成2,3。因此，提出了治疗骨再生的完整研究应包括血管树整个缺损部位形成的一个全面的调查。有几种可用的方法研究模型来刻画血管。血管树可以通过组织学分析进行调查。自组织学依赖于切片的组织，存在所得到的图像将被扭曲的可能性高。为了解决这个问题，活体显微镜可以执行将图像的完好的血管4;然而，这种方法是限制在一个平面上成像。从灌注造影剂的动物获取的样品μCT扫描允许饲料再生网站5血管网络的3D影像。这种方法允许器官的脉管作为一个整体的一个非常详细的示范，以及血管分布的细致的分析。此外，μCT使多样直径血管，这表征血管的不同亚型之间的分化。 我们假设一个颅骨自体的该植入会诱发比同种异体移植物的植入更大新血管形成，而这增加了新血管形成将导致反过来增强骨formation.To追求这一假设，我们所采用的各种技术。我们通过执行μCT为基础的分析研究了新成立的血管树的模式。我们用血池荧光探针测量血液灌注。接下来，我们的驴SED骨组织矿化羟基磷灰石定向探头和μCT分析FLI。最后，我们监测干细胞招募和分化，在将荧光素酶表达在骨钙素阳性细胞的转基因小鼠进行的BLI。

<table border="0" cellpadding="0" cellspacing="0" width="614">
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			<td height="42" style="height:42px;width:216px;">C57BL/C&#160; Mice</td>
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			<td height="42" style="height:42px;width:216px;">Eye ointment</td>
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			<td height="21" style="height:21px;width:216px;">rodent dissection board</td>
			<td style="width:112px;">Leica</td>
			<td style="width:119px;">38DI02313</td>
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			<td height="21" style="height:21px;width:216px;">Microfil MV-122</td>
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			<td style="width:119px;">MV-122</td>
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			<td height="21" style="height:21px;width:216px;">uCT40 scanner</td>
			<td style="width:112px;">Scanco</td>
			<td style="width:119px;">uCT40</td>
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			<td height="21" style="height:21px;width:216px;">TCA6%</td>
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		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Angiosense750</td>
			<td style="width:112px;">PerkinElmar</td>
			<td style="width:119px;">NEV10011</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Oxigen 100% medical grade</td>
			<td style="width:112px;"></td>
			<td style="width:119px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">isoflurane (furane)</td>
			<td style="width:112px;">Baxter</td>
			<td align="right" style="width:119px;">1001936040</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">IVIS kinetics</td>
			<td style="width:112px;">Xenogen</td>
			<td style="width:119px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Beetle luciferin</td>
			<td style="width:112px;">Promega</td>
			<td style="width:119px;">E160A</td>
			<td></td>
		</tr>
	</tbody>
</table>

computed tomography and optical imaging of osteogenesis-angiogenesis coupling to assess integration of cranial bone autografts and allografts

一个主要参数确定一个骨移植过程的成功是包围接枝的区域的血管形成。我们假设一个植骨的是植入会诱发更大的骨再生的丰富的血管形成。调查接枝的对新血管形成在缺损部位的影响，我们开发了一种显微计算机断层摄影术（μCT）的方式来表征新形成的血管，其包括具有聚合的造影剂的动物的全身灌流。该方法，能够将其全部器官的血管详细分析。另外，血液灌注是使用血源性荧光剂的荧光成像（FLI）评估。骨的形成是使用羟基磷灰石针对性的探头和μCT分析FLI量化。干细胞募集是由转基因小鼠的生物发光成像（BLI），该表达骨钙蛋白启动子控制下的萤光素酶进行监测。这里，我们描述和展示制备的同种异体移植物的，颅骨缺损手术，对于新血管形成的研究和骨形成分析（包括体内灌注造影剂），并且协议进行数据分析的μCT扫描协议。 脉管系统的三维高分辨率分析表明在动物中植入自体移植显著更大的血管生成，特别是相对于小动脉的形成。因此，血液灌流是由第 7天手术后显著高于自体移植小组。我们在接受自体移植动物中观察到优越的骨矿化和测量更大的骨形成。自体移植诱导驻留干细胞募集到移植物宿主骨缝线，其中所述细胞分化成的第 7和第10日术后天之间骨形成细胞。这一发现意味着，增强骨形成可能是由于扩充血管饲养的特点自体植入。该方法的描述可作为研究骨组织再生紧密界骨骼的形成和新生血管方面的最佳工具。

新血管形成通过μCT体积分析和通过FLI使用荧光血源性剂量化血液灌注进行评估。手术后七天，μCT扫描证实在已经收到自体比在已经收到移植从C57BL / 6（图3A）收获小鼠小鼠显著更高体积的中小直径的血管。有趣的是，移植组中新形成的血管树似乎达到整个缺陷区域，而同种异体移植组中的血管出现穿透从外边缘缺损部位和向内延伸到仅在有限的程度。所述FLI支持了这一观察，示出显?...

Watch this Scientific Journal Video about Computed Tomography and Optical Imaging of Osteogenesis-angiogenesis Coupling to Assess Integration of Cranial Bone Autografts and Allografts at JoVE.com

Computed Tomography and Optical Imaging of Osteogenesis-angiogenesis Coupling to Assess Integration of Cranial Bone Autografts and Allografts

自体和异体骨移植物植入构成接受的方法来治疗严重颅面骨量丢失。然而接枝组合物对新血管形成，细胞分化和骨形成之间的相互作用的影响还不清楚。我们提出的目的是阐明血管生成骨形成相互依存的移植接近一个多模式成像协议。

计算机断层扫描和成骨血管生成耦合光学成像评估头盖骨自体移植和移植物的整合

A major parameter determining the success of a bone-grafting procedure is vascularization of the area surrounding the graft. We hypothesized that ...

Research

JoVE Journal

Bioengineering

Three-dimensional Optical-resolution Photoacoustic Microscopy

三维光学分辨率的光声显微镜

Optical microscopy, providing valuable insights at the cellular and organelle levels, has been widely recognized as an enabling biomedical technology. As ...

科研

生物工程

Attaching Biological Probes to Silica Optical Biosensors Using Silane Coupling Agents

将生物探针使用硅烷偶联剂的硅光学生物传感器

In order to interface with biological environments, biosensor platforms, such as the popular Biacore system (based on the Surface Plasmon Resonance (SPR) ...

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

集成光声眼底镜检查和谱域光学相干断层扫描

Both the clinical diagnosis and fundamental investigation of major ocular diseases greatly benefit from various non-invasive ophthalmic imaging ...

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

宽带超声医疗成像应用，光学检测仪

Optical sensors of ultrasound are a promising alternative to piezoelectric techniques, as has been recently demonstrated in the field of optoacoustic ...

An Improved Mechanical Testing Method to Assess Bone-implant Anchorage

一种改进的机械性能测试方法来评估骨种植体支抗

Recent advances in material science have led to a substantial increase in the topographical complexity of implant surfaces, both on a micro- and a ...

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography

在心肌结构，功能的体内定量评估，灌注与活力使用心脏微型计算机断层扫描

The use of Micro-Computed Tomography (MicroCT) for in vivo studies of small animals as models of human disease has risen tremendously due to the fact that ...

Proper Positioning and Restraint of a Rat Hind Limb for Focused High Resolution Imaging of Bone Micro-architecture Using In Vivo Micro-computed Tomography

Proper Positioning and Restraint of a Rat Hind Limb for Focused High Resolution Imaging of Bone Micro-architecture Using In Vivo Micro-computed Tomography

应用活体显微计算机断层成像技术对骨微结构高分辨成像大鼠后肢的定位与抑制

The use of in vivo micro-computed tomography (&#181;CT) is a powerful tool which involves the non-destructive imaging of internal structures at high ...

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT

斜扫描激光检眼镜 (奥斯陆) 与光学相干层析成像 (OCT) 的多模态视网膜成像

While fluorescence imaging is widely used in ophthalmology, a large field of view (FOV) three-dimensional (3D) fluorescence retinal image is still a big ...

Use of Micro X-ray Computed Tomography with Phosphotungstic Acid Preparation to Visualize Human Fibromuscular Tissue

使用微X射线计算机断层扫描与磷酸制备可视化人类纤维肌组织

Manual dissection and histological observation are common methods used to investigate human tissues. However, manual dissection can damage delicate ...

Optical Imaging of Isolated Murine Ventricular Myocytes

分离的月毛心室肌细胞的光学成像

The ability to isolate adult cardiac myocytes has permitted researchers to study a variety of cardiac pathologies at the single cell level. While advances ...