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Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card).

Background. Foreign body ingestion typically affects children or adults with mental conditions. SIM (subscriber identity module) card ingestion is extremely rare. As their particularly X-Ray dense metal parts are sized about 9 × 12 mm × 50--80 μ, they can be difficult to capture on plain radiograp...

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Main Authors: Schweitzer, Wolf, Winklhofer, Sebastian, Thali, Michael J., Yaakup, Nur Adura, Abdul Rashid, Saiful Nizam
Format: Article
Language:English
Published: Elsevier 2013
Online Access:http://psasir.upm.edu.my/id/eprint/29818/1/Medicolegal%20X.pdf
http://psasir.upm.edu.my/id/eprint/29818/
http://www.jofri.net/article/S2212-4780(13)00065-8/abstract
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spelling my.upm.eprints.298182016-01-28T06:51:55Z http://psasir.upm.edu.my/id/eprint/29818/ Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card). Schweitzer, Wolf Winklhofer, Sebastian Thali, Michael J. Yaakup, Nur Adura Abdul Rashid, Saiful Nizam Background. Foreign body ingestion typically affects children or adults with mental conditions. SIM (subscriber identity module) card ingestion is extremely rare. As their particularly X-Ray dense metal parts are sized about 9 × 12 mm × 50--80 μ, they can be difficult to capture on plain radiographs. We were asked by investigative authorities to point out the best method to document intentionally swallowed SIM cards. Method and material. A case of a 23 year old female who had swallowed a SIM card when she was arrested for murder was followed up with four abdomen radiographs and CT (computed tomography) of the abdomen. Experimentally, SIM cards were examined in CT. SIM card object contrast against surrounding background was quantified through CNR (contrast-to-noise ratio). Results. SIM card orientation perpendicular to plain film X-Ray beams resulted in relatively low CNR values of 1.6-2.5. SIM cards in CT scans yielded considerably better CNR values exceeding 9. Discussion. While plain abdomen radiographs have a lower X-Ray dose than abdomen CT scans, more frequent possibly negative results may lead to repetitive exposure. We recommend to consider drug trafficking as possible problem in conjunction with any observed SIM card swallowing, particularly in context of police arrests or a suspect's detention. We recommend to consider CT of the abdomen, if possible with a low dose, rather than plain abdomen radiographs. Elsevier 2013-07 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/29818/1/Medicolegal%20X.pdf Schweitzer, Wolf and Winklhofer, Sebastian and Thali, Michael J. and Yaakup, Nur Adura and Abdul Rashid, Saiful Nizam (2013) Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card). Journal of Forensic Radiology and Imaging, 1 (3). pp. 129-133. ISSN 2212-4780; ESSN: 2212-4799 http://www.jofri.net/article/S2212-4780(13)00065-8/abstract 10.1016/j.jofri.2013.05.004
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Background. Foreign body ingestion typically affects children or adults with mental conditions. SIM (subscriber identity module) card ingestion is extremely rare. As their particularly X-Ray dense metal parts are sized about 9 × 12 mm × 50--80 μ, they can be difficult to capture on plain radiographs. We were asked by investigative authorities to point out the best method to document intentionally swallowed SIM cards. Method and material. A case of a 23 year old female who had swallowed a SIM card when she was arrested for murder was followed up with four abdomen radiographs and CT (computed tomography) of the abdomen. Experimentally, SIM cards were examined in CT. SIM card object contrast against surrounding background was quantified through CNR (contrast-to-noise ratio). Results. SIM card orientation perpendicular to plain film X-Ray beams resulted in relatively low CNR values of 1.6-2.5. SIM cards in CT scans yielded considerably better CNR values exceeding 9. Discussion. While plain abdomen radiographs have a lower X-Ray dose than abdomen CT scans, more frequent possibly negative results may lead to repetitive exposure. We recommend to consider drug trafficking as possible problem in conjunction with any observed SIM card swallowing, particularly in context of police arrests or a suspect's detention. We recommend to consider CT of the abdomen, if possible with a low dose, rather than plain abdomen radiographs.
format Article
author Schweitzer, Wolf
Winklhofer, Sebastian
Thali, Michael J.
Yaakup, Nur Adura
Abdul Rashid, Saiful Nizam
spellingShingle Schweitzer, Wolf
Winklhofer, Sebastian
Thali, Michael J.
Yaakup, Nur Adura
Abdul Rashid, Saiful Nizam
Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card).
author_facet Schweitzer, Wolf
Winklhofer, Sebastian
Thali, Michael J.
Yaakup, Nur Adura
Abdul Rashid, Saiful Nizam
author_sort Schweitzer, Wolf
title Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card).
title_short Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card).
title_full Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card).
title_fullStr Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card).
title_full_unstemmed Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card).
title_sort medicolegal x-ray and ct of standard size mobile phone cards (sim card).
publisher Elsevier
publishDate 2013
url http://psasir.upm.edu.my/id/eprint/29818/1/Medicolegal%20X.pdf
http://psasir.upm.edu.my/id/eprint/29818/
http://www.jofri.net/article/S2212-4780(13)00065-8/abstract
_version_ 1643829873958977536
score 13.211869

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