I detta projekt har tiden för hur länge en patient befinner sig i hypotension samt hypotensionsdosen beräknats. Tiden i hypotension har beräknats med hjälp av episoder i över en minut och hypotensionsdosen har kalkylerats som integralen mellan hypotensionsgränsen 65 mmHg och den estimerade medelartärtryckskurvan (MAP-kurvan). Flera metoder användes, såsom klassificering av extrempunkter i rådata och kurvanpassning genom interpolation, vilket gav varierande och olika goda resultat. Detta framförallt beroende på hur datan behandlades med olika filter, till exempel så kallat “smoothing”-filter samt medianfilter. / In this project the time of how long a person is in hypotension and the hypotension exposure have been calculated. The time was calculated using episodes longer than one minute and the hypotension exposure has been calculated as the integral between the hypotension limit 65 mmHg and the estimated mean arterial pressure curve (MAP-curve). Several methods were used, such as classification of extreme values in raw data and curve fitting through interpolation, which gave diverse results and of varied accuracy. This primarily because of which filter that was used, for example smoothing and median filters.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:kth-289621 |
| Date | January 2020 |
| Creators | Jönsson, Camilla, Liljeholm Lundin, Ludwig |
| Publisher | KTH, Medicinteknik och hälsosystem |
| Source Sets | DiVA Archive at Upsalla University |
| Language | Swedish |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | TRITA-CBH-GRU ; 2020:291 |
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