Navigation Links
'Virtual autopsy' helps identify drowning as cause of death

"Virtual autopsy" performed with multidetector computed tomography (MDCT) can aid forensics teams in determining if a person has drowned, according to a study published in the June issue of Radiology.

MDCT is comparable to conventional autopsy in demonstrating airway froth and sediment that are indicative of drowning.

"Our findings show that MDCT can be used either to facilitate or reduce the need for conventional autopsy when drowning is the suspected cause of death," said lead author Angela D. Levy, M.D., from the Department of Radiology, Uniformed Services University of the Health Sciences in Bethesda, Md.

The determination of drowning as a cause of death for a body that is found in water is imperative in forensic investigation because becoming submerged in water may be a secondary rather than primary event. Autopsy findings that support the diagnosis of drowning include but are not limited to frothy fluid in the airways or lungs, hyperinflated and congested lungs, and fluid in the paranasal sinuses or stomach.

There are some advantages to virtual autopsy compared to conventional autopsy. In cases of suspicious death, the procedure does not damage or destroy key forensic evidence, as can happen during a conventional autopsy. In addition, MDCT can be used in situations where autopsy may not be feasible or is prohibited by religious beliefs. However, in most cases, MDCT would best be employed as an adjunct to routine autopsy.

Dr. Levy and colleagues performed total-body MDCT exams on 28 consecutive male drowning victims and a control group of 12 men who were victims of sudden death from coronary artery disease. Following MDCT, routine autopsies were performed.

MDCT images were evaluated for the presence of fluid and sediment in the paranasal sinuses and airways, fluid in the ear, frothy fluid in the airways, obscured "ground-glass" appearance or thickening in the lungs, and swelling, fluid or sediment in the stomach. Images were then compared to autopsy reports and photographs.

MDCT indicated that all of the drowning victims had fluid in the paranasal sinuses and ears and ground-glass opacity in the lungs. Twenty-six (93 percent) had fluid in the subglottic (below the vocal cords) trachea and main bronchi. Fourteen (50 percent) had sediment in the subglottic airways. Six (21 percent) had frothy fluid in the airways, and 25 (89 percent) had ground-glass opacity and thickening in the lungs. Twenty-five (89 percent) exhibited swelling of the stomach.

No members of the control group had frothy fluid or sediment in the airways or sinuses, 11 (92 percent) had subglottic airway, tracheal and bronchial fluid. All members of the control group exhibited collapsed stomachs.

Autopsy results in these categories were similar to MDCT results for both study groups.

"Airway froth and sediment can be demonstrated on MDCT and were specific to drowning, thereby replicating the findings seen at autopsy," said Dr. Levy.

Based on this study, MDCT may provide support for the diagnosis of drowning when other causes of death have been excluded by a limited autopsy or external examination of the body. In addition, MDCT virtual autopsy may be useful as a pre-autopsy triage tool in mass casualty scenarios.

"More and more, advanced imaging tools such as MDCT are being applied to forensic investigations," Dr. Levy said. "In the future, imaging in forensics may be just as important as imaging in clinical medicine."
'"/>

Source:Radiological Society of North America


Related biology news :

1. Virtual Patient to simulate real-time organ motions for radiation therapy
2. Jumping gene helps explain immune systems abilities
3. Protein helps regulate the genes of embryonic stem cells
4. Scientists reveal the shape of a protein that helps retroviruses break into cells
5. Thai spice helps cut blood sugar swings
6. Chemists synthesize molecule that helps body battle cancers, malaria
7. Ancient DNA helps clarify the origins of two extinct New World horse species
8. Massey Cancer Center researcher helps to identify a piece of the cancer puzzle
9. Study: Well-known protein helps stem cells become secretory cells
10. Beyond genes: Lipid helps cell wall protein fold into proper shape
11. Simple sea sponge helps scientists understand tissue rejection

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/15/2016)... June 15, 2016 Transparency ... titled "Gesture Recognition Market by Application Market - Global Industry Analysis ... 2024". According to the report, the  global gesture recognition ... 2015 and is estimated to grow at a ... by 2024.  Increasing application of gesture ...
(Date:6/2/2016)... 2016 The Department of Transport Management ... 44 million US Dollar project, for the , ... Personalization, Enrolment, and IT Infrastructure , to ... and implementation of Identity Management Solutions. Numerous renowned international vendors ... Decatur was selected for the most compliant and ...
(Date:5/20/2016)... -- VoiceIt is excited to announce its new marketing ... working together, VoiceIt and VoicePass will offer an ... slightly different approaches to voice biometrics, collaboration between ... Both companies ... "This marketing and technology partnership allows VoiceIt ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... is pleased to announce the launch of their brand, UP4™ Probiotics, into Target ... over 35 years, is proud to add Target to its list of well-respected ...
(Date:6/23/2016)... ... June 23, 2016 , ... Charm Sciences, Inc. ... test has received AOAC Research Institute approval 061601. , “This is another AOAC-RI ... stated Bob Salter, Vice President of Regulatory and Industrial Affairs. “The Peel Plate ...
(Date:6/23/2016)... ON (PRWEB) , ... June 23, 2016 , ... STACS ... DNA Technical Leader at the Arkansas State Crime Laboratory, has joined STACS DNA as ... the STACS DNA team,” said Jocelyn Tremblay, President and COO of STACS DNA. “In ...
(Date:6/23/2016)... NEW YORK , June 23, 2016 ... the trading session at 4,833.32, down 0.22%; the Dow Jones ... the S&P 500 closed at 2,085.45, down 0.17%. Stock-Callers.com has ... INFI ), Nektar Therapeutics (NASDAQ: NKTR ... BIND Therapeutics Inc. (NASDAQ: BIND ). Learn more ...
Breaking Biology Technology: