Wolf Schweitzer, Michael Thali, Rosa Maria Martinez, Lars Ebert
{"title":"Post mortem CT angiography in fetuses or newborn: Very affordable pump and catheter solution","authors":"Wolf Schweitzer, Michael Thali, Rosa Maria Martinez, Lars Ebert","doi":"10.1016/j.jofri.2018.04.001","DOIUrl":null,"url":null,"abstract":"<div><p>This technical note describes a pump and catheter setup that is geared towards performing post mortem computed tomography angiography<span> (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.</span></p></div>","PeriodicalId":45371,"journal":{"name":"Journal of Forensic Radiology and Imaging","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jofri.2018.04.001","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Forensic Radiology and Imaging","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2212478018300029","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
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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