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Zocht je misschien: does, done?

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 …

2016-09-28Gezondheid; …Artikel

Dose to the masseter muscle and risk of trismus after chemoradiation for advanced head & neck cancer

S Verheijen (Onderzoeker); Emmy Lamers (Lid Lectoraat)

Purpose / objective: Head and neck cancer patients treated with chemoradiation are at risk for developing trismus (reduced mouth opening). Trismus is often a persisting side-effect and difficult to manage. It impairs eating, speech and oral hygiene, affecting quality of life. Although several studies …

2015-12-01GezondheidAndersoortig materiaal

Multicriteria optimization enables less experienced planners to efficiently produce high quality treatment plans in head and neck cancer radiotherapy

Kierkels, Roel G J; Visser, Ruurd; Bijl, Hendrik P; Langendijk, Johannes A; van 't Veld, Aart A; Steenbakkers, Roel J H M; Korevaar, Erik W

OBJECTIVES: To demonstrate that novice dosimetry planners efficiently create clinically acceptable IMRT plans for head and neck cancer (HNC) patients using a commercially available multicriteria optimization (MCO) system. METHODS: Twenty HNC patients were enrolled in this in-silico comparative planning …

2015-04-12AlgemeenArtikel

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

Lesion detection performance

Jessop, Maryam; Thompson, John D.; Coward, Joanne; Sanderud, Audun; Jorge, José; de Groot, Martijn; Lança, Luís; Hogg, Peter

Incidental findings on low-dose CT images obtained during hybrid imaging are an increasing phenomenon as CT technology advances. Understanding the diagnostic value of incidental findings along with the technical limitations is important when reporting image results and recommending follow-up, which may …

2015-03-01AlgemeenArtikel

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 …