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Verminderen van extracardiale uptake bij een myocard-perfusie SPECT-CT

Kees Huinink (Student); Marjon Gevers (Begeleider)

Inleiding Extracardiale uptake (ECU) bij een Myocardperfusie Single Positron Emission Computed Tomography (MP SPECT) kan de beoordeling van een MP SPECT bemoeilijken. Het consumeren van bepaalde voedingsmiddelen (patiëntvoorbereidingen) na toediening van het radiofarmacon en voorafgaand aan de acquisitie …

2016GezondheidBachelor

Skeletal muscle quality as assessed by CT-derived skeletal muscle density is associated with 6-month mortality in mechanically ventilated critically ill patients

Looijaard, Wilhelmus G.P.M.; Dekker, Ingeborg M.; Stapel, Sandra N.; Girbes, Armand R.J.; Twisk, Jos W.R.; Oudemans-van Straaten, Heleen M.; Weijs, Peter J.M. (Lectoraat Voeding En Beweging)

BACKGROUND: Muscle quantity at intensive care unit (ICU) admission has been independently associated with mortality. In addition to quantity, muscle quality may be important for survival. Muscle quality is influenced by fatty infiltration or myosteatosis, which can be assessed on computed tomography …

2016AlgemeenArtikel

Evaluation of bioelectrical impedance analysis in critically Ill patients

Kuchnia, Adam; Earthman, Carrie; Teigen, Levi; Cole, Abigail; Mourtzakis, Marina; Paris, Michael; Looijaard, Willem; Weijs, Peter (Lectoraat Voeding En Beweging); Oudemans-van Straaten, Heleen; Beilman, Gregory; Day, Andrew; Leung, Roger; Compher, Charlene; Dhaliwal, Rupinder; Peterson, Sarah; Roosevelt, Hannah; Heyland, Daren K

BACKGROUND: In critically ill patients, muscle loss is associated with adverse outcomes. Raw bioelectrical impedance analysis (BIA) parameters (eg, phase angle [PA] and impedance ratio [IR]) have received attention as potential markers of muscularity, nutrition status, and clinical outcomes. Our objective …

2016AlgemeenArtikel

Substantial CT radiation dose reduction does not affect the preference for CT over direct digital radiography to diagnose isolated zygomatic fractures

Meijer, Annemieke; Rozema, R.; Hartman, R.; van der Duim, S.; van Minnen, B.; Krijnen, Wim (Statistical Techniques For Applied Research); de Groot, Martijn

Introduction: Zygomatic fractures can be diagnosed with either computed tomography (CT) or direct digital radiography (DR). The aim of the present study was to assess the effect of CT dose reduction on the preference for facial CT versus DR for accurate diagnosis of isolated zygomatic fractures. Materials …

2016AlgemeenArtikel

Automated Generation of Pelvic CT-based DRR’s

Esther van der Stappen (Begeleider); Alexander H.I.P.R. Hustinx (Student)

In this thesis the research on the automatic constructing of intelligible digitally reconstructed radiographs (DRR’s) of the hips is described. This project was initialized when the Department of Orthopedic surgery, within UMC Utrecht, decided to research the relation between spinopelvic parameters and …

2015-10-18ICT & MediaBachelor

Post-mortem fluid stasis in the sinus,trachea and mainstem bronchi

Stephanie Biljardt (Student); Renee Tijhuis (Student); Anne Brummel (Student); T. Sieswerda-Hoogendoorn; L.F.M. Beenen; R.R. van Rijn

Introduction: The purposeofthisstudywastoassessoccurrenceof fluid stasisinthesinus,trachea and mainstem bronchionPMCT. Materials andmethods: Patients were collected from different groups, two adult and two paediatric groups. Patients who died from drowning or evident trauma to head and neck were excluded …

2015-07-09GezondheidArtikel

RESULTS OF A SURVEY ON THE IMPLEMENTATION OF DIAGNOSTIC REFERENCE LEVELS FOR X-RAYS AMONG DUTCH HOSPITALS

Harmen Bijwaard (Lector); Ischa de Waard-Schalkx; Doreth Valk

Diagnostic reference levels (DRLs) for medical x-ray procedures are being implemented currently in the Netherlands. By order of the Dutch Healthcare Inspectorate, a survey has been conducted among 20 Dutch hospitals to investigate the level of implementation of the Dutch DRLs in current radiological …

2015-03-01GezondheidConferentiebijdrage

De invloed van intekening van de parasternale klieren op de SPECT-CT in vergelijking met de standaard CT-scan

Marion Essers (Begeleider); Kim van der Klugt (Student); Maggie Klessens (Begeleider)

Een nadeel van bestraling van de parasternale klieren is het niet zichtbaar worden op de Computed Tomography, waardoor de parasternale klieren worden ingetekend met behulp van de European SocieTy for Radiotherapy & Oncology (ESTRO). Door de Single Photon Emission Tomography - Computed Tomography (SPECT-CT) …

2015GezondheidBachelor

Research article – A comparison of Sinogram Affirmed Iterative Reconstruction and filtered back projection on image quality and dose reduction in paediatric head CT: a phantom study

Bakker, Astrid; de Lange, René; Ahmed, Abdulfatah; Garcia, André; Tomkinson, David; Salamin, Julie; Buyvidovich, Sergey A.; Sohrabi, Tina; Dominguez, Alexandre; Campeanu, Cosmin

Background: Computed tomography (CT) is one of the most used modalities for diagnostics in paediatric populations, which is a concern as it also delivers a high patient dose. Research has focused on developing computer algorithms that provide better image quality at lower dose. The iterative reconstruction …

2015AlgemeenConferentiebijdrage

Review article – The impact of Sinogram-Affirmed Iterative Reconstruction on patient dose and image quality compared to filtered back projection: a narrative review

Plasman, Paul; Bakker, Astrid; de Lange, René; Ahmed, Abdulfatah; Garcia, André; Tomkinson, David; Salamin, Julie; Buyvidovich, Sergey A.; Dominguez, Alexandre; Campeanu, Cosmin; Sohrabi, Tina

Objective: Summarize all relevant findings in published literature regarding the potential dose reduction related to image quality using Sinogram-Affirmed Iterative Reconstruction (SAFIRE) compared to Filtered Back Projection (FBP). Background: Computed Tomography (CT) is one of the most used radiographic …

2015AlgemeenConferentiebijdrage

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