Essentials of forensic post-mortem MR imaging in adults

Ruder, Thomas D.; Thali, Michael J.; Hatch, Gary M.

doi:10.1259/bjr.20130567

Cited by 119 publications

(86 citation statements)

References 88 publications

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“…Creating both international clinical and forensic reference databases for research purposes could greatly enhance the ability of individual institutions to conduct research, especially for smaller institutes and special populations for which the number of cases is insufficient to conduct a statistically relevant study (Ruder, Thali, & Hatch, 2014). Some examples are pediatric (Addison, Authors, & Thayyil, 2014) and elder abuse cases (Daly & Fowler, 2007).…”

Section: Big Data and Statisticsmentioning

confidence: 99%

“…Similarly, various types of optical spectroscopy in scene investigation of latent and dried blood spots (Edelman, van Leeuwen, & Aalders, 2015;Laan, Bremmer, Aalders, & de Bruin, 2014) and bruising are published for forensic investigations (Edelman, Gaston, van Leeuwen, Cullen, & Aalders, 2012;Stam, et al, 2011). Defining the correlation between radiology and pathology findings such as developing methods of effectively displaying multimodal imaging or synthesizing multimodal results for presentation in court and to victims' families have reported benefit (Ruder et al, 2014).…”

Section: Multimodal Imagingmentioning

confidence: 99%

“…This research utilizes biopsied tissue from an animal model and involves three phases. In phase 1, the tissue-specific MR parameters T1 and T2 (the initial and final temperature-dependent relaxation times) and the apparent diffusion coefficient (ADC) as a function of temperature will be measured for a variety of mammalian tissues (Ruder et al, 2014). The findings of phase 1 will guide phase 2.…”

Section: -Dn-bx-k019: Investigation Of the Impact Of Body Temperamentioning

confidence: 99%

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Proceedings of the International Forensic Radiology Research Summit May 10–11, 2016, Amsterdam, The Netherlands

Jones

Ropero‐Miller

Waltke³

et al. 2017

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This PDF document was made available from www.rti.org as a public service of RTI International. More information about RTI Press can be found at http://www.rti.org/ rtipress. RTI International is an independent, nonprofit research organization dedicated to improving the human condition by turning knowledge into practice. The RTI Press mission is to disseminate information about RTI research, analytic tools, and technical expertise to a national and international audience. RTI Press publications are peerreviewed by at least two independent substantive experts and one or more Press editors. Suggested Citation

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Section: Big Data and Statisticsmentioning

confidence: 99%

Section: Multimodal Imagingmentioning

confidence: 99%

Section: -Dn-bx-k019: Investigation Of the Impact Of Body Temperamentioning

confidence: 99%

See 1 more Smart Citation

Proceedings of the International Forensic Radiology Research Summit May 10–11, 2016, Amsterdam, The Netherlands

Jones

Ropero‐Miller

Waltke³

et al. 2017

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“…[3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] Interpreting the relationship of imaging findings to cause of death requires knowledge of normal postmortem imaging findings. However, consensus regarding what constitutes a normal appearance on PMMR images is difficult because T 1 and T 2 values change according to body temperature.…”

Section: Introductionmentioning

confidence: 99%

“…However, consensus regarding what constitutes a normal appearance on PMMR images is difficult because T 1 and T 2 values change according to body temperature. 12,[18][19][20] Therefore, acquisition of appropriate image contrast for deceased bodies at low temperatures re-*Corresponding author, Phone: +81-92-554-1255, Fax: +81-92-552-2707, E-mail: abe.k@junshin-u.ac.jp quires optimization of the parameters for PMMR imaging. Short-tau inversion recovery (STIR) and fluidattenuated inversion recovery (FLAIR) are typical sequences employed to suppress tissue signal.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Inversion Time for Postmortem Fluid-attenuated Inversion Recovery (FLAIR) MR Imaging at 1.5T: Temperature-based Suppression of Cerebrospinal Fluid

et al. 2015

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Purpose: Signal intensity (SI) and image contrast on postmortem magnetic resonance (MR) imaging are different from those of imaging of living bodies. We sought to suppress the SI of cerebrospinal fluid (CSF) sufficiently for fluid-attenuated inversion recovery (FLAIR) sequence in postmortem MR (PMMR) imaging by optimizing inversion time (TI).Materials and Methods: We subject 28 deceased patients to PMMR imaging 3 to 113 hours after confirmation of death (mean, 27.4 hrs.). PMMR imaging was performed at 1.5 tesla, and T 1 values of CSF were measured with maps of relaxation time. Rectal temperatures (RT) measured immediately after PMMR imaging ranged from 6 to 32°C (mean, 15.4°C). We analyzed the relationship between T 1 and RT statistically using Pearson's correlation coefficient. We obtained FLAIR images from one cadaver using both a TI routinely used for living bodies and an optimized TI calculated from the RT.Results: T 1 values of CSF ranged from 2159 to 4063 ms (mean 2962.4), and there was a significantly positive correlation between T 1 and RT (r = 0.96, P < 0.0001). The regression expression for the relationship was T 1 = 74.4 * RT + 1813 for a magnetic field strength of 1.5T. The SI of CSF was effectively suppressed with the optimized TI (0.693 * T 1 ), namely, TI = 0.693 * (77.4 * RT + 1813).Conclusion: Use of the TI calculated from the linear regression of the T 1 and RT optimizes the FLAIR sequence of PMMR imaging.

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