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Radiation dose to the masseter and medial pterygoid muscle in relation to trismus after chemoradiotherapy for advanced head and neck cancer

Sophie A. Kraaijenga; Olga Hamming-Vrieze; Sonja Verheijen; Emmy Lamers (Lid Lectoraat); Lisette van der Molen; Frans J. Hilgers; Michiel W. van den Brekel; Wilma D. Heemsbergen

Abstract Background: We studied the relationship between trismus (maximum interincisor opening [MIO] ≤35 mm) and the dose to the ipsilateral masseter muscle (iMM) and ipsilateral medial pterygoid muscle (iMPM). Methods: Pretreatment and post-treatment measurement of MIO at 13 weeks revealed 17% of …

2019GezondheidArtikel

Predicting and implications of target volume changes of brain metastases during fractionated stereotactic radiosurgery

Eline Hessen (Onderzoeker); Jasper Nijkamp (Onderzoeker); Pim Damen (Onderzoeker); Michael Hauptmann (Onderzoeker); Bas Jasperse (Onderzoeker); Luc Dewit (Onderzoeker); Lotte Lutkenhaus (Onderzoeker); Emmy Lamers (Lid Lectoraat); Uulke van der Heide (Onderzoeker); Eugène Damen (Onderzoeker); Patrick Hanssens (Onderzoeker); Gerben Borst (Onderzoeker)

a b s t r a c t: Objective: To study the impact of target volume changes in brain metastases during fractionated stereotactic radiosurgery (fSRS) and identify patients that benefit from MRI guidance. Material and methods: For 15 patients (18 lesions) receiving fSRS only (fSRSonly) and 19 patients (20 …

2019GezondheidArtikel

Effectiviteit in stadiëring van prostaatcarcinomen: Ga68-PSMA vs. F18-Choline

Celine Dijkstra (Student); Desirée Uildriks (Student); Janine Baër (Begeleider); Ruurd Visser (Begeleider)

Voor de stadiëring van een prostaatcarcinoom wordt gebruik gemaakt van beeldvormend onderzoek, waaronder nucleair geneeskundig onderzoek als PET/CT of een whole body skeletscintigrafie. Doel van het onderzoek is het maken van een inschatting welke techniek (Ga68-PSMA PET/CT of F18-Choline PET/CT) effectiever …

2018-12-31GezondheidBachelor

Suitable sexual health care according to men with prostate cancer and their partners

Grondhuis Palacios, L.A. (Lorena) (Researcher); Krouwel, E.M. (Esmee) (Researcher); Oudsten, B.L. (Brenda) den (Researcher); Ouden, M.E.M. (Marjolein) den (Researcher); Kloens, G.J. (Gert Jan) (Researcher); Duijn, G. (Grethe) van (Researcher); Putter, H. (Hein) (Researcher); Pelger, R.C.M. (Rob) (Researcher); Elzevier, H.W. (Henk) (Researcher)

Purpose:To determine which health care provider and what timing is considered most suitable to discuss sexual and relationalchanges after prostate cancer treatment according to the point of view of men and their partners. Methods A cross-sectional survey was conducted among men diagnosed with prostate …

2018-06-01AlgemeenArtikel

Aanpassing van de standaard veldgrootte bij laterale liggende knie opnames

Lisanne Uffen (Student); Janniek Koning (Student); H. Erenstein (Begeleider)

In de praktijk komt het voor dat de standaard veldgrootte onnodig wordt vergroot, zonder dat MBB’ers zich hier bewust van zijn. Hierdoor ontvangt de patiënt onnodig meer dosis en wordt het ALARA-principe niet nageleefd. De veldgrootte wordt onnodig aangepast bij laterale knie opnames. Hierdoor ontstaat …

2018-05-31GezondheidBachelor

Durable clinical remission of a skull metastasis under intralesional Viscum album extract therapy

Paul G. Werthmann (Onderzoeker); Roman Huber (Onderzoeker); Gunver S. Kienle (Onderzoeker)

Background Skull metastases are rare, they can eventually cause pain, and can invade the brain. Viscum album extracts (VAEs) are used as an adjuvant treatment in cancer. Methods and Results A 68‐year‐old patient with rectal cancer presented with lung metastases, and metastases to multiple bone sites, …

2018GezondheidArtikel

Een trainings- en voedingsinterventie tijdens radiotherapie bij hoofd-halskanker lijkt haalbaar [Bespreking van: Sandmael JA, Bye A, Solheim TS, Stene GB, Thorsen L, Kaasa S, Lund JÅ, Oldervoll LM. (2017) Feasibility and preliminary effects of resistance training and nutritional supplements during versus after radiotherapy in patients with head and neck cancer]

van Berkel, D.M. (Lonneke); Stuiver, M.M. (Martijn) (Faculteit Gezondheid)

2017-10-26AlgemeenArtikel

How radiation influences atherosclerotic plaque development

Harmen Bijwaard (Lector)

Atherosclerosis is the development of lipid-laden plaques in arteries and is nowadays considered as an inflammatory disease. It has been shown that high doses of ionizing radiation, as used in radiotherapy, can increase the risk of development or progression of atherosclerosis. To elucidate the effects …

2017-08-21GezondheidArtikel

Multivariable normal tissue complication probability model-based treatment plan optimization for grade 2-4 dysphagia and tube feeding dependence in head and neck radiotherapy

Kierkels, Roel G J; Wopken, Kim; Visser, Ruurd; Korevaar, Erik W; van der Schaaf, Arjen; Bijl, Hendrik P; Langendijk, Johannes A

BACKGROUND AND PURPOSE: Radiotherapy of the head and neck is challenged by the relatively large number of organs-at-risk close to the tumor. Biologically-oriented objective functions (OF) could optimally distribute the dose among the organs-at-risk. We aimed to explore OFs based on multivariable normal …

2016-12AlgemeenArtikel

Reconstruction of high resolution MLC leaf positions using a low resolution detector for accurate 3D dose reconstruction in IMRT

Visser, R.; Godart, J.; Wauben, D.J.L.; Langendijk, J.A.; van 't Veld, A.A.; Korevaar, E.W.

In pre-treatment dose verification, low resolution detector systems are unable to identify shifts of individual leafs of high resolution multi leaf collimator (MLC) systems from detected changes in the dose deposition. The goal of this study was to introduce an alternative approach (the shutter technique) …

2016-11-07AlgemeenArtikel

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