Full Body Virtual Autopsies using a State-of-the-art Volume Rendering Pipeline

Ljung, Patric; Winskog, Calle; Persson, Anders; Lundström, Claes; Ynnerman, Anders

doi:10.1109/tvcg.2006.146

Cited by 70 publications

(36 citation statements)

References 22 publications

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“…Most modern techniques perform full ray traversal on the GPU. In this context, large volume data is handled by compressing it using adaptive texturing schemes to fit entire datasets into GPU memory [25], or by using flat [17] or hierarchical [12,5,14] multiresolution structures in conjunction with adaptive loaders to deal with datasets of potentially unlimited size. In this context, our contribution is the first integration of a GPU accelerated tensor reconstruction of multiscale volume data into a real-time and out-of-core LOD based volume renderer (i.e., MOVR [12,14]).…”

Section: Related Workmentioning

confidence: 99%

Interactive Multiscale Tensor Reconstruction for Multiresolution Volume Visualization

Suter

Guitián

Marton

et al. 2011

IEEE Trans. Visual. Comput. Graphics

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Abstract-Large scale and structurally complex volume datasets from high-resolution 3D imaging devices or computational simulations pose a number of technical challenges for interactive visual analysis. In this paper, we present the first integration of a multiscale volume representation based on tensor approximation within a GPU-accelerated out-of-core multiresolution rendering framework. Specific contributions include (a) a hierarchical brick-tensor decomposition approach for pre-processing large volume data, (b) a GPU accelerated tensor reconstruction implementation exploiting CUDA capabilities, and (c) an effective tensor-specific quantization strategy for reducing data transfer bandwidth and out-of-core memory footprint. Our multiscale representation allows for the extraction, analysis and display of structural features at variable spatial scales, while adaptive level-of-detail rendering methods make it possible to interactively explore large datasets within a constrained memory footprint. The quality and performance of our prototype system is evaluated on large structurally complex datasets, including gigabyte-sized micro-tomographic volumes.

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Section: Related Workmentioning

confidence: 99%

Interactive Multiscale Tensor Reconstruction for Multiresolution Volume Visualization

Suter

Guitián

Marton

et al. 2011

IEEE Trans. Visual. Comput. Graphics

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“…Linköping, Sweden, and his colleagues described a procedure for virtual autopsies based on interactive 3-dimensional visualisations of large-scale, high-resolution data from postmortem computed tomography (CT) scans. 1 He says, "When we started we had huge problems-we could not calculate the whole body because there is a huge amount of data. We had to develop our own technology to move the data."…”

Section: Selected Referencesmentioning

confidence: 99%

European Perspectives

2011

Circulation

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“…Predominantly CT is used to enhance the diagnostic possibilities in foreign body detection, skeletal findings and gaseous pathologies [1][2][3][4][5][6][7][8][9]. Since 2003, postmortem CT (pmCT) is added to forensic examinations of deceased at the local Department of Forensic Medicine, which is performed in close collaboration with the Center for Medical Science and Visualization (CMIV) at Linköping University [10]. Prior to traditional autopsy, the human corpses are examined at CMIV using multi detector computed tomography (MDCT), which has been implemented on a routine basis to complement traditional autopsy, especially when skeletal or gaseous findings are of importance in certain cases.…”

Section: Introductionmentioning

confidence: 99%

Atlanto-axial rotatory subluxations in postmortem CT: Radiologists be aware of a common pitfall

Persson

Falk

Berge

et al. 2013

Forensic Science International

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The aim of the present study was to determine the frequency of atlanto-axial rotatory subluxations (AARS) in multi detector computed tomography (MDCT) performed on human corpses for forensic purposes and to investigate whether these are a physiological postmortem finding or indicate a trauma to the neck region. 80 forensic cases examined with MDCT from November 2003 to March 2007 were included in the study. The study was approved by the regional ethics committee. For each case volumes were rendered and investigated with reference to suspected AARS and any other anomalies of the head and neck region. The rotation of the head as well as in the atlanto-axial joint were measured and occurring AARS were judged according Fielding`s classification. The finding of AARS was correlated to case criteria such as postmortem head rotation, sex, age, cause of death, time since death and further autopsy results. Statistical analysis was performed using Fisher's exact test, Wilcoxon`s rank sums test and Chisquare test with Pearson approximation. 70 % (n=56) of the cases included in the study presented with an AARS. A strong correlation (p<.0001) between suspected AARS and postmortem head rotation was found. Two cases presented with an atlanto-axial rotation greater than the head rotation. One showed an undiscovered lateral dislocation of the atlas, and one an unfused atlas-ring. There was no correlation to any further investigated case criteria. Ipsilateral AARS with head rotation alone does not indicate trauma to the neck. PmCT can substantially support forensic examinations of the skeleton, especially in body regions, which are elaborate to access at autopsy, such as the cervical spine. Isolated AARS (Fielding type I) on pmCT is usually a normal finding associated with ipsilateral head rotation. Atlanto-Axial Rotatory Subluxations in Postmortem CT:Radiologists Be Aware of a common Pitfall. *Manuscript (without author identifiers) Click here to view linked References ABSTRACTThe aim of the present study was to determine the frequency of atlanto-axial rotatory subluxations (AARS) in multi detector computed tomography (MDCT) performed on human corpses for forensic purposes and to investigate whether these are a physiological postmortem finding or indicate a trauma to the neck region. PmCT can substantially support forensic examinations of the skeleton, especially in body regions, which are elaborate to access at autopsy, such as the cervical spine. Isolated AARS (Fielding type I) on pmCT is usually a normal finding associated with ipsilateral head rotation.

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Full Body Virtual Autopsies using a State-of-the-art Volume Rendering Pipeline

Cited by 70 publications

References 22 publications

Interactive Multiscale Tensor Reconstruction for Multiresolution Volume Visualization

Interactive Multiscale Tensor Reconstruction for Multiresolution Volume Visualization

European Perspectives

Atlanto-axial rotatory subluxations in postmortem CT: Radiologists be aware of a common pitfall

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