Application of 3D Surface Scanners in Forensic Science and Medicine ( I ): Digital Storage of Human Skeletons and Development of Appraisal Methods for Incident Scenes / 대한법의학회지

The aim of this project was to use 3D scanning data collected at incident scenes and various evidence to 1) develop surveying methods based on 3D data consisting of overall and detailed scene evidence, captured by long-range and micros-canner, which can be shared by personnel working in different fields such as forensic medicine, video analysis, physical analysis, traffic engineering, and fire investigation; 2) create digital storage for human skeletons and set the foundation for virtual anthropology; and 3) improve the credibility of 3D evidence by virtual remodeling and simulation of incident scenes and evidence to provide a basis for advanced and high-tech scientific investigation. Two complete skeletons of male and female were scanned using 3D micro-scanner. Each bone was successfully reproduced and assembled in virtual space. In addition, recreating evidence scheduled for invasive examination by creating RP (rapid prototype) was possible. These outcomes could play an important role in setting up the new field of virtual anthropology. Case-specific surveying methods were developed through analysis of 3D scanning data collected by long-range surface scanners at the scenes of vehicular accidents, falls, shootings, and violent crimes. A technique and recording method was also developed for detecting forged seals by micro-scanning the pressure exerted on the seal. Appraisal methods developed in this project could be utilized to secure 3D data of human skeletal remains and incident scenes, create a standard for application, and increase objectivity, reproducibility, and accuracy of scanning methods. We plan to develop case-specific 3D data analysis techniques to improve the credibility of analysis at the NFS and to establish a 3D data collection and analysis team.

An Autopsy Case of Severe Ovarian Hyperstimulation Syndrome with Multifocal Arterial and Venous Thromboembolism / 대한법의학회지

Ovarian hyperstimulation syndrome (OHSS) is a rare, serious complication of assisted reproductive procedures for fertility treatment. Although most cases of OHSS are mild to moderate in nature, its severe form causes life-threatening complications including respiratory distress, renal failure, liver dysfunction, and thromboembolism because of hemoconcentration. We herein report a rare autopsy case of severe OHSS in a 29-year-old woman who underwent controlled ovulation induction. Three days after the administration of human chorionic gonadotropin, she developed abdominal pain and distension. Two days after, she suddenly developed respiratory arrest, hypotension and semicomatose mentality and died of respiratory failure. At autopsy, multifocal thromboembolism was detected in the internal carotid arteries, internal jugular veins, pulmonary arteries, inferior vena cava, renal arteries, and deep leg veins. And there were cerebral edema, anasarca, pleural effusion, massive pulmonary edema, ascites, and bilateral ovarian enlargement. Microscopically, the bilateral ovaries showed multiple well-developed cyst formations consisting of membrana granulosa and theca interna. To the best of our knowledge, this is the first autopsy report of severe OHSS with multifocal arterial and venous thromboembolism.

Sudden Unexpected Death Due to Medulloblastoma / 대한법의학회지

The majority of deaths due to intracranial tumors are preceded by long periods of symptoms, resulting in diagnosis of the tumors. And introduction of CT and MRI have led to increased early detection of intracranial tumors. Nonetheless, sudden unexpected deaths from intracranial tumors are rarely encountered at autopsy. We report an autopsy case of 2-year-old boy who died from medulloblastoma.

A Falsely Reported Case That Cell Phone Battery Explosion Caused Death / 대한법의학회지

A 34 year-old excavator driver was found dead at stone quarry in Cheongwon, North Chungcheong Province, with a severely burnt mobile phone in his shirt pocket and with his chest bruised and ribs fractured. An emergency physician examined him and said that high pressure from an explosion damaged his lungs and heart, leading to his death. So, a number of Korean and foreign newspapers reported that phone battery explosion killed the man. Autopsy showed that the deceased had fractures all over the chest and lacerations of the heart and the lungs. The damages seemed too extensive to be caused by a single mobile phone explosion. Lithium-ion polymer batteries used in mobile phones can catch fire by external forces but they hardly explode like a bomb. We recommended police to reinvestigate the scene and co-worker. So, police reinvestigated the accident scene and the co-worker. The co-worker told police that he hit the deceased while reversing his drill rig at a stone quarry. The incident reminds of us that our postmortem investigation system must be revised.

A Self-inflicted Pneumatic Nail Gun Head Injury / 대한법의학회지

A nail gun is a type of a tool used to drive nails into some kinds of hard materials. In this paper, an unusual case of intracranial penetrating nail gun injury is presented. The body of a badly charred man was found following a house fire. Autopsy revealed four intracranial nails in the occipital area. Also, tears of the stomach and diaphragm were found. Carbon monoxide saturation of a blood sample was a 5.2% and a small amount of soot was present in larynx and trachea. Subsequent investigation of the circumstance and autopsy findings strongly suggest that the deceased had shot himself in the head with a pneumatic nail gun and had died by self immolation.