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| 1 | Modern post-mortem imaging:an update on recent developments显示文摘Modern post-mortem investigations use an increasing number of digital imaging methods,which can be collected under the term“post-mortem imaging”.Most methods of forensic imaging are from the radiology field and are therefore techniques that show the interior of the body with technologies such as X-ray or magnetic resonance imaging.To digitally image the surface of the body,other techniques are regularly applied,e.g.three-dimensional(3D)surface scanning(3DSS)or photogrammetry.Today’s most frequently used techniques include post-mortem computed tomography(PMCT),post-mortem magnetic resonance imaging(PMMR),post-mortem computed tomographic angiography(PMCTA)and 3DSS or photogrammetry.Each of these methods has specific advantages and limitations.Therefore,the indications for using each method are different.While PMCT gives a rapid overview of the interior of the body and depicts the skeletal system and radiopaque foreign bodies,PMMR allows investigation of soft tissues and parenchymal organs.PMCTA is the method of choice for viewing the vascular system and detecting sources of bleeding.However,none of those radiological methods allow a detailed digital view of the body’s surface,which makes 3DSS the best choice for such a purpose.If 3D surface scanners are not available,photogrammetry is an alternative.This review article gives an overview of different imaging techniques and explains their applications,advantages and limitations.We hope it will improve understanding of the methods. | Silke Grabherr Coraline Egger Raquel Vilarino Lorenzo Campana Melissa Jotterand Fabrice Dedouit | 2017 | Forensic Sciences Research2017，2，2： | 5 |
| 2 | 基于纳米磁流体尸体磁共振成像血管造影的可行性研究显示文摘目的初步探究纳米磁流体(magnetic nanoparticle ferrofluid,MNPF)在尸体磁共振成像血管造影(postmortem magnetic resonance angiography,PMMRA)的可行性。方法纳米粒子γ-Fe2O3(30nm)通过油酸(oleic acid,OA)表面修饰后,均匀分散在石蜡油(paraffin oil,PO)中,制备γ-Fe2O3浓度为0~1000μg/ml的MNPF。MNPF导入试管密封后固定在MR仪扫描床上,使用T1w-SE、T2w-SE和3DT2*w-GR扫描序列获取影像数据并分析影像学特点。将γ-Fe2O3浓度为0μg/ml、25μg/ml和1000μg/ml的MNPF灌注至牛离体心脏冠脉中,使用T1wSE、T2w-SE扫描序列获取影像数据并分析影像学特点。结果当γ-Fe2O3浓度在0~100μg/ml范围时,MNPF在T1wSE影像上呈现高信号,在T2w-SE影像上呈现低信号,在T2*w-SE影像上,MNPF随着γ-Fe2O3浓度的增加信号逐渐降低直至消失。当γ-Fe2O3浓度超过100μg/ml时,将可能导致磁敏感伪影的产生,而不适合造影剂的使用。结论一定浓度范围的γ-Fe2O3脂溶性MNPF,有可能成为PMMRA的T1阳性造影剂和信号可控T2*对比剂。 | 夏志远 Christine Bruguier Fabrice Dedouit Silke Grabherr Marc Augsburger 刘蓓蓓 | 2020 | 中国法医学杂志2020，35，6： | 4 |
| 3 | Oleic Acid (OA), A Potential Dual Contrast Agent for Postmortem MR Angiography (PMMRA): A Pilot Study显示文摘Summary:Choosing proper perfusates as contrast agents is an important aspect for postmortem magnetic resonance angiography(PMMRA).However,in this emerging field,the number of suitable kinds of liquid is still very limited.The objective of this research is to compare MR images of oleic acid(OA)with paraffin oil(PO)in vitro and in ex situ animal hearts,in order to evaluate the feasibility to use OA as a novel contrast agent for PMMRA.In vitro,OA,PO and water(control)were introduced into three tubes separately and T,weighted-spin echo(Tw SE)and T2w-SE images were acquired on a 1.5T MR scanner.In the second experiment,0A and PO were injected into left coronary artery(LCA)and left ventricle(LV)of ex situ bovine hearts and their Tw-SE,Tzw-SE,Tw-multipoint Dixon(Tjw-mDixon)and 3DT2w-mDixon images were acquired.The overall results indicate that OA may have a potential to be used as a dual(T and T2 based)contrast agent for PMMRA when proper sequence parameters are utilized.However,as the pilot study was based on limited number of animal hearts,more researches using OA in cadavers are needed to validate our findings. | Zhi-yuan XIA Christine BRUGUIER Fabrice DEDOUIT Silke GRABHERR Marc AUGSBURGER Bei-bei LIU | 2020 | Current Medical Science2020，40，4： | 3 |
| 4 | CT-scan vs.3D surface scanning of a skull:first considerations regarding reproducibility issues显示文摘Three-dimensional surface scanning(3DSS)and multi-detector computed tomography(MDCT)are two techniques that are used in legal medicine for digitalizing objects,a body or body parts such as bones.While these techniques are more and more commonly employed,surprisingly little information is known about the quality rendering of digitalized three-dimensional(3D)models provided by each of them.This paper presents findings related to the measurement precision of 3D models obtained through observation of a study case,where a fractured skull reconstructed by an anthropologist was digitalized using both post-mortem imaging methods.Computed tomography(CT)scans were performed using an 8-row MDCT unit with two different slice thicknesses.The variability of 3D CT models superimposition allowed to assess the reproducibility and robustness of this digitalization technique.Furthermore,two 3D surface scans were done using a professional high resolution 3D digitizer.The comparison of 3D CT-scans with 3D surface scans by superimposition demonstrated several regions with significant differences in topology(average difference between+1.45 and-1.22 mm).When comparing the reproducibility between these two digitalizing techniques,it appeared that MDCT 3D models led in general to greater variability for measurement precision between scanned surfaces.Also,the reproducibility was better achieved with the 3D surface digitizer,showing 3D models with fewer and less pronounced differences(from+0.32 to-0.31 mm).These experiments suggest that MDCT provides less reproducible body models than 3D surface scanning.But further studies must be undertaken in order to corroborate this first impression,and possibly explain the reason for these findings. | Stella Fahrni Lorenzo Campana Alejandro Dominguez Tanya Uldin Fabrice Dedouit Olivier Deleemont Silke Grabherr | 2017 | Forensic Sciences Research2017，2，2： | 2 |
| 5 | New identification possibilities with postmortem multislice computed tomography显示文摘 | Dedouit F Telmon N Costagliola R | 2007 | Int J Legal Med2007，121，6： | 1 |
| 6 | Application of the Iscan method to two- and three-dimensional imaging of the sternal end of the right fourth rib 显示文摘 | Dedouit F Bindel S Gainza D | 2008 | J Forensic Sci2008，53，2： | 1 |
| 7 | Muhislice computed tomography of the first rib : a useful technique for bone age assessment 显示文摘 | Moskovitch G Dedouit F Braga J | 2010 | J Forensic Sci2010，55，4： | 1 |
| 8 | Age at death estimation using multislice computed tomographyreconstructions of the posterior pelvis 显示文摘 | Barrier P Dedouit F Braga J | 2009 | J Forensic Sci2009，54，4： | 1 |
| 9 | Unexpected natural death secondary to intra-abdominal bleeding: report ff one idiopathic spontaneous intraperitoneal hemorrhage case显示文摘 | DEDOUIT F PIERCECCHI-MARTI MD LEONE3TI G et el | 2012 | Forensic Sci lnt2012，214，： | 1 |
| 10 | Virtual anthropology and forensic identification using multidetector CT显示文摘 | Dedouit F Savall F Mokrane FZ | 2014 | Br J Ra- diol2014，87，20： | 1 |
| 11 | Thyroid cartilage ossification and multislice computed tomography examination:a useful tool for age assessment显示文摘 | Dang-Tran KD Dedouit F Joffre F | | 0，，03： | 1 |
| 12 | Application of the Iscan method to two-and three-dimensional imaging of the sternal end of the right fourth rib显示文摘 | Dedouit F Bindel S Gainza D | | 0，，02： | 1 |
| 13 | Multislice computed tomography of the first rib:a useful technique for bone age assessment显示文摘 | Moskovitch G Dedouit F Braga J | | 0，，04： | 1 |
| 14 | Age at death estimation using multislice computed tomography reconstructions of the posterior pelvis显示文摘 | Barrier P Dedouit F Braga J | | 0，，04： | 1 |
| 15 | Virtual anthropology and forensic identification: report of one case显示文摘 | Dedouit F Telmon N Costagliola R et 01 | 2007 | Forensic Sci Int2007，173，23： | 1 |
| 16 | Suicidal hanging resulting in complete decapitation-forensic,radiological,and anthropological studies:A case report显示文摘 | Dedouit F Tournel G Becart A | 2007 | J Forensic Sci2007，52，5： | 1 |
| 17 | Spine in- jury following a low-energy trauma in ankylosing spondylitis: a study of two cases显示文摘 | Savall F Mokrane FZ Dedouit F | 2014 | Forensic Sci Int2014，241，： | 1 |
| 18 | Multislice Computed Tomography of the First Rib: A Useful Technique for Bone Age Assessment 显示文摘 | Moskovitch G Dedouit F Braga J | 2010 | J Forensic Sci2010，55，4： | 1 |
| 19 | Virtual anthropology and forensic identification:Report of one case显示文摘 | Dedouit F Telmon N Costagliola R | 2007 | Forensic Sci Int2007，173，： | 1 |
| 20 | Virtual anthropology and forensic identi? cation: Report of one case显示文摘 | Dedouit F Telmon N | 2007 | Forensic Science International2007，173，： | 1 |
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