keyword
MENU ▼
Read by QxMD icon Read
search

forensic imaging

keyword
https://www.readbyqxmd.com/read/29348411/in-vivo-microscopic-photoacoustic-spectroscopy-for-non-invasive-glucose-monitoring-invulnerable-to-skin-secretion-products
#1
Joo Yong Sim, Chang-Geun Ahn, Eun-Ju Jeong, Bong Kyu Kim
Photoacoustic spectroscopy has been shown to be a promising tool for non-invasive blood glucose monitoring. However, the repeatability of such a method is susceptible to changes in skin condition, which is dependent on hand washing and drying due to the high absorption of infrared excitation light to the skin secretion products or water. In this paper, we present a method to meet the challenges of mid-infrared photoacoustic spectroscopy for non-invasive glucose monitoring. By obtaining the microscopic spatial information of skin during the spectroscopy measurement, the skin region where the infrared spectra is insensitive to skin condition can be locally selected, which enables reliable prediction of the blood glucose level from the photoacoustic spectroscopy signals...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348074/standardized-medical-image-registration-for-radiological-identification-of-decedents-based-on-paranasal-sinuses
#2
Dominic Gascho, Hinderberger Philipp, Patricia M Flach, Michael J Thali, Sören Kottner
Image registration software is frequently used in clinical radiology, e.g., for follow-up diagnosis. To a certain extent, the radiological identification of decedents (RadID) is comparable to a clinical follow-up diagnosis, in that two datasets from different dates are compared in terms of their anatomical characteristics (e.g., paranasal sinuses) or surgical implants. Due to the increasing use of computed tomography (CT) for head examinations in clinical radiology and the increased use of postmortem CT (PMCT) in forensic imaging, the comparison of three-dimensional (3D) clinical CT (termed as antemortem CT (AMCT) in this article) and PMCT datasets for RadID is becoming increasingly practical...
January 10, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29344721/post-mortem-mr-angiography-quantitative-investigation-and-intravascular-retention-of-perfusates-in-ex-situ-porcine-hearts
#3
Bridgette Webb, Thomas Widek, Sylvia Scheicher, Thorsten Schwark, Rudolf Stollberger
As the implementation of minimally invasive imaging techniques in both forensic and pathological practice increases, research in this area focuses on addressing recognised diagnostic weaknesses of current approaches. Assessment of sudden cardiac death (SCD) can be considered one such area in which post-mortem imaging still shows diagnostic weaknesses. We hypothesise that magnetic resonance imaging (MRI) with an angiographic adjunct may improve the visualisation and interpretation of cardiac pathologies in a post-mortem setting...
January 18, 2018: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29335777/fully-automatic-ct-histogram-based-fat-estimation-in-dead-bodies
#4
Michael Hubig, Sebastian Schenkl, Holger Muggenthaler, Felix Güttler, Andreas Heinrich, Ulf Teichgräber, Gita Mall
Post-mortem body cooling is the foundation of temperature-based death time estimations (TDE) in homicide cases. Forensic science generally provides two types of p.m. body cooling models, the phenomenological and the physical models. Since both of them have to implement important individual parameters like the quantity of abdominal fat explicitly or implicitly, a more exact quantification and localization of abdominal fat is a desideratum in TDE. Particularly for the physical models, a better knowledge of the abdominal fat distribution could lead to relevant improvements in TDEs...
January 15, 2018: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29331680/estimating-error-rates-for-firearm-evidence-identifications-in-forensic-science
#5
John Song, Theodore V Vorburger, Wei Chu, James Yen, Johannes A Soons, Daniel B Ott, Nien Fan Zhang
Estimating error rates for firearm evidence identification is a fundamental challenge in forensic science. This paper describes the recently developed congruent matching cells (CMC) method for image comparisons, its application to firearm evidence identification, and its usage and initial tests for error rate estimation. The CMC method divides compared topography images into correlation cells. Four identification parameters are defined for quantifying both the topography similarity of the correlated cell pairs and the pattern congruency of the registered cell locations...
December 13, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29324319/dental-age-estimation-employing-cbct-scans-enhanced-with-mimics-software-comparison-of-two-different-approaches-using-pulp-tooth-volumetric-analysis
#6
Muhammad Khan Asif, Phrabhakaran Nambiar, Shani Ann Mani, Norliza Binti Ibrahim, Iqra Muhammad Khan, Prema Sukumaran
The methods of dental age estimation and identification of unknown deceased individuals are evolving with the introduction of advanced innovative imaging technologies in forensic investigations. However, assessing small structures like root canal volumes can be challenging in spite of using highly advanced technology. The aim of the study was to investigate which amongst the two methods of volumetric analysis of maxillary central incisors displayed higher strength of correlation between chronological age and pulp/tooth volume ratio for Malaysian adults...
January 4, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29318893/cross-polarised-and-parallel-polarised-light-viewing-and-photography-for-examination-and-documentation-of-biological-materials-in-medicine-and-forensics
#7
Katharine L Hanlon
Cross-polarisation, with regard to visible light, is a process wherein two polarisers with perpendicular orientation to one another are used on the incident and reflected lights. Under cross-polarised light birefringent structures which are otherwise invisible become apparent. Cross-polarised light eliminates glare and specular highlights, allowing for an unobstructed view of subsurface pathology. Parallel-polarisation occurs when the polarisers are rotated to the same orientation. When cross- or parallel-polarisation is applied to photography, images can be generated which aid in visualisation of surface and subsurface elements...
January 10, 2018: Journal of Visual Communication in Medicine
https://www.readbyqxmd.com/read/29313524/multichannel-spectrometers-in-animals
#8
Thomas Wells Cronin, Missael Garcia, Viktor Gruev
Multispectral, hyperspectral, polarimetric, and other types of multichannel imaging spectrometers are coming into common use for a variety of applications, including remote sensing, material identification, forensics, and medical diagnosis. These instruments are often bulky and intolerant of field abuse, so designing compact, reliable, portable, and robust devices is a priority. In contrast to most engineering designs, animals have been building compact and robust multichannel imaging systems for millennia - their eyes...
January 9, 2018: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/29310502/post-mortem-computed-tomography-technical-principles-and-recommended-parameter-settings-for-high-resolution-imaging
#9
Dominic Gascho, Michael J Thali, Tilo Niemann
Post-mortem computed tomography (PMCT) has become a standard procedure in many forensic institutes worldwide. However, the standard scan protocols offered by vendors are optimised for clinical radiology and its main considerations regarding computed tomography (CT), namely, radiation exposure and motion artefacts. Thus, these protocols aim at low-dose imaging and fast imaging techniques. However, these considerations are negligible in post-mortem imaging, which allows for significantly increased image quality...
January 1, 2018: Medicine, Science, and the Law
https://www.readbyqxmd.com/read/29306229/morphometric-analysis-of-the-foramen-magnum-using-cone-beam-computed-tomography
#10
Gülsün Akay, Kahraman Güngör, İlkay Peker
Background/aim: The aim of this study was to perform morphometric analysis of the foramen magnum (FM) using cone-beam computed tomography (CBCT). Materials and methods: This study included CBCT images of 190 individuals (88 males and 102 females). The sagittal and transverse diameters and circumference of the FM were measured. The shape of FM was classified as round, hexagonal, oval, egg-shaped, tetragonal, pentagonal, irregular A, and irregular B. The data were statistically analyzed with chi-square and t-tests to assess the level of significance for sex and age...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29304390/the-cutting-edge-micro-ct-for-quantitative-toolmark-analysis-of-sharp-force-trauma-to-bone
#11
D G Norman, D G Watson, B Burnett, P M Fenne, M A Williams
Toolmark analysis involves examining marks created on an object to identify the likely tool responsible for creating those marks (e.g., a knife). Although a potentially powerful forensic tool, knife mark analysis is still in its infancy and the validation of imaging techniques as well as quantitative approaches is ongoing. This study builds on previous work by simulating real-world stabbings experimentally and statistically exploring quantitative toolmark properties, such as cut mark angle captured by micro-CT imaging, to predict the knife responsible...
December 30, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29299666/proposals-for-best-quality-immunohistochemical-staining-of-paraffin-embedded-brain-tissue-slides-in-forensics
#12
Florian Trautz, Jan Dreßler, Ruth Stassart, Wolf Müller, Benjamin Ondruschka
Immunohistochemistry (IHC) has become an integral part in forensic histopathology over the last decades. However, the underlying methods for IHC vary greatly depending on the institution, creating a lack of comparability. The aim of this study was to assess the optimal approach for different technical aspects of IHC, in order to improve and standardize this procedure. Therefore, qualitative results from manual and automatic IHC staining of brain samples were compared, as well as potential differences in suitability of common IHC glass slides...
January 3, 2018: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29275560/-research-progress-of-maldi-tof-ims-in-biomedicine-and-its-application-prospect-in-forensic-sciences
#13
REVIEW
G H Ren, R H Weng, Y Shi, P Huang, Z D Li, Y Shao, K F Deng, N G Liu, Y J Chen
Matrix-assisted laser desorption/ionization time-of-flight imaging mass spectrometry (MALDI-TOF-IMS) can analysis unknown compounds in sections and obtain molecule imaging by scanning biological tissue sections, which has become a powerful tool for the research of biomarker, lipid distribution and drug metabolism, etc. This article reviews the application of this technique in protein identification, clinical application, drug discovery, lipid research and brain injury.
October 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29274623/automatic-estimation-of-a-scale-resolution-in-forensic-images
#14
I Gertsovich, M Nilsson, J S Bartůněk, I Claesson
This paper proposes a new method for an automatic detection of a resolution of a scale or a ruler with graduation marks in the shoeprint images. The method creates a vector of the correlations estimated from the co-occurrence matrices for every row in a shoeprint image. The scale resolution is estimated from maxima in Fourier spectrum of the correlations' vectors. The proposed method is evaluated on over 500 images taken at crime scenes and in a forensics laboratory. The experimental results indicate the possibility of applying the proposed method to automatically estimate the scale resolution in forensic images...
December 11, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29231012/-progress-in-application-of-measuring-skeleton-by-ct-in-forensic-anthropology-research
#15
C Y Miao, L Xu, N Wang, M Zhang, Y S Li, J X Lü
Individual identification by measuring the human skeleton is an important research in the field of forensic anthropology. Computed tomography (CT) technology can provide high-resolution image of skeleton. Skeleton image can be reformed by software in the post-processing workstation. Different skeleton measurement indexes of anthropology, such as diameter, angle, area and volume, can be measured on section and reformative images. Measurement process is barely affected by human factors. This paper reviews the literatures at home and abroad about the application of measuring skeleton by CT in forensic anthropology research for individual identification in four aspects, including sex determination, height infer, facial soft tissue thickness measurement and age estimation...
February 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29230990/-analysis-of-forensic-identification-on-32-cases-of-lumbar-spondylolysis
#16
L F Tu, Y P Chen, S P Zhang
OBJECTIVES: To explore the casual relationship and the significance of identification among the injury, disease and damage consequence in the disability evaluation of lumbar spondylolysis by the standard for identifying grading of disability caused by work-related injuries. METHODS: The general data, injury manner, clinical treatment and the imaging examination of 32 lumbar spondylolysis cases were collected and retrospectively analyzed. According to the degree of participation in the injury and damage consequence, the identification and assessment of casual relationship was made, and the grading of disability was assessed...
June 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29225363/forensic-identification-of-decomposed-human-body-through-comparison-between-ante-mortem-and-post-mortem-ct-images-of-frontal-sinuses-case-report
#17
Rhonan Ferreira Silva, Fernando Fortes Picoli, Tessa de Lucena Botelho, Roberta Gomes Resende, Ademir Franco
Objective: The aim of this paper is to report on a case of positive human identification of a decomposed body after the comparison of ante-mortem (AM) and port-mortem (PM) computed tomography images of frontal sinus. Case report: An unknown, highly decomposed human body, aged between 30 and 40 years, was found in a forest region in Brazil. The dental autopsy revealed several teeth missing AM and the presence of removable partial prostheses. The search for AM data resulted in a sequence of 20 axial images of the paranasal sinuses obtained by Multislice Computed Tomography (MSCT)...
September 2017: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/29219268/-application-of-susceptibility-weighted-imaging-in-the-identification-of-hemorrhagic-diffuse-axonal-injury
#18
W Li
OBJECTIVES: To explore the application value of susceptibility weighted imaging (SWI) in the forensic identification of hemorrhagic diffuse axonal injury (DAI). METHODS: The forensic identification materials of 20 DAI cases were analyzed retrospectively. The sequence image materials of T1WI, T2WI, diffusion weighted imaging (DWI), fluid attenuated inversion recovery (FLAIR) and susceptibility weighted imaging (SWI) were analyzed statistically...
August 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29219263/-comparison-of-measurement-methods-of-exophthalmos-and-its-forensic-significance
#19
S L Tan, J M Chen, X Y Yu, M W Wang, P P Zhuo, S Zhou, W T Xia
OBJECTIVES: To compare the differences between Hertel exophthalmometry and CT on exophthalmos measurement, and explore its practical application value in forensic medicine. METHODS: Fifty-six normal individuals without eye injuries or diseases were selected as the control group. The absolute values of exophthalmos were measured in the standardized CT image workstation. The difference of binocular exophthalmos was compared in normal group. Forty-seven cases with unilateral orbital fracture were divided into injured eye group and normal eye group according to the presence of binocular orbital fractures...
August 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29212958/estimating-age-at-death-based-on-costal-cartilage-calcification
#20
Tomoya Ikeda
Age estimation is a crucial part of forensic investigations. Because different parts of the body are often found at crime scenes, it is important to explore the regions that can be used for age estimation. Previous studies have used simple X-ray to analyze changes in costal cartilage calcification as a measure of age. Here, we tested whether age could be better estimated using measurements of costal cartilage calcification on postmortem CT images. In this study, male and female decedents (n = 10 each) from autopsy cases were grouped into 10-year incremental age groups (20-29 y; 30-39 y; up to 89 y)...
2017: Tohoku Journal of Experimental Medicine
keyword
keyword
28679
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"