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Development of an Imaging Protocol for Arthro-CT
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems.
2024 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Utformning av ett bildbehandlingsprotokoll för Arthro-CT (Swedish)
Abstract [en]

Arthro-CT is an imaging method where a contrast agent is injected into a patient before a standard CT scan is performed, ensuring that the cartilage is visible in the images produced. Episurf Medical AB typically utilise MRI to scan patients’ knees when creating personalised implants. For those patients who cannot be scanned with MRI, Episurf would like to use arthro-CT. The project aimed to create an arthro-CT imaging protocol.

Episurf provided twelve cases where arthro-CT had been used to scan patients’ knees and ankles. The cases were judged on their image quality, and the parameters used on the CT scanners were investigated. To create the imaging protocol, the parameters were compared to find the optimal ones. The resulting protocol identified optimal settings: slice thickness of 0.6 - 1 millimetre, a slice increment smaller than slice thickness, bone convolution kernel, 120 - 140 kV tube voltage, helical acquisition mode and a field of view covering the distal femur and cartilage.

Abstract [sv]

Arthro-CT är en bildgivande metod där ett kontrastmedel injiceras i en patient innan en standard CT-scan utförs. Detta säkerställer att brosket blir synligt i bilderna som produceras. Episurf Medical AB använder vanligtvis MR för att skanna patienters knän när de skapar personliga implantat. För de patienter som MR är olämpligt för, skulle Episurf vilja använda arthro-CT. Målet med detta projekt var att skapa ett bildbehandlingsprotokoll för arthro-CT.Tolv fall där arthro-CT hade använts för att scanna patienters knän och fotleder förseddes av Episurf. Fallen blev bedömda på dess bildkvalitet, och CT-scannernas använda parametrar undersöktes. För att skapa bildbehandlingsprotokollet, jämfördes parametrarna för att hitta de optimala. Det resulterade protokollet identifierade optimala värden: skivtjocklek 0.6 - 1 millimeter, avståndet mellan skivorna mindre än skivtjockleken, en benalgoritm, 120 - 140 kV röntgenrörsspänning, helical skanläge och ett scanyta som täcker distala femur och brosket.

Place, publisher, year, edition, pages
2024. , p. 44
Series
TRITA-CBH-GRU ; 2024:153
Keywords [en]
Computed Tomography (CT), Arthrogram Computed Tomography (Arthro-CT), Magnetic Resonance Imaging (MRI)
Keywords [sv]
Datortomografi (CT), Datortomografi artrografi (Artro-CT), Magnetisk resonanstomografi (MRT)
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:kth:diva-350018OAI: oai:DiVA.org:kth-350018DiVA, id: diva2:1882251
External cooperation
Episurf Medical AB
Subject / course
Medical Engineering
Educational program
Master of Science in Engineering - Medical Engineering
Supervisors
Examiners
Available from: 2024-07-26 Created: 2024-07-04 Last updated: 2024-07-26Bibliographically approved

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