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Post mortem CT angiography in fetuses or newborn: very affordable pump and catheter solution


Schweitzer, Wolf; Thali, Michael J; Martinez, Rosa Maria; Ebert, Lars C (2018). Post mortem CT angiography in fetuses or newborn: very affordable pump and catheter solution. Journal of Forensic Radiology and Imaging, 13:17-22.

Abstract

This technical note describes a pump and catheter setup that is geared towards performing post mortem computed tomography angiography (PMCTA) examinations in fetal humans. With a voltage controlled very affordable immersion pump and a modified butterfly injection needle, relatively stable linear voltage flow rate relationships can be obtained across flow rates in the range of 30 to 150 ml/min. Flow rates are calculated and compared with actual measurements, whereas practical results suggest a degree of turbulence within the setup used. Practical testing with a fetal pig results in excellent vascular filling. This was subject to considerable partial volume effect, however, so using a micro computed tomography scanner for better quality scans of PMCTA for fetal humans is highly recommended.

Abstract

This technical note describes a pump and catheter setup that is geared towards performing post mortem computed tomography angiography (PMCTA) examinations in fetal humans. With a voltage controlled very affordable immersion pump and a modified butterfly injection needle, relatively stable linear voltage flow rate relationships can be obtained across flow rates in the range of 30 to 150 ml/min. Flow rates are calculated and compared with actual measurements, whereas practical results suggest a degree of turbulence within the setup used. Practical testing with a fetal pig results in excellent vascular filling. This was subject to considerable partial volume effect, however, so using a micro computed tomography scanner for better quality scans of PMCTA for fetal humans is highly recommended.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Legal Medicine
Dewey Decimal Classification:340 Law
610 Medicine & health
Language:English
Date:2018
Deposited On:27 Jul 2018 15:23
Last Modified:27 Jul 2018 15:23
Publisher:Elsevier
ISSN:2212-4780
OA Status:Closed
Publisher DOI:https://doi.org/10.1016/j.jofri.2018.04.001

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