scispace - formally typeset
R

R. de Graaf

Researcher at Utrecht University

Publications -  180
Citations -  14811

R. de Graaf is an academic researcher from Utrecht University. The author has contributed to research in topics: Population & Mental health. The author has an hindex of 55, co-authored 164 publications receiving 13165 citations. Previous affiliations of R. de Graaf include Maastricht University Medical Centre & Maastricht University.

Papers
More filters
Journal ArticleDOI

B1-Insensitive, Single-Shot Localization and Water Suppression

TL;DR: Computer simulations based on the Bloch equations, experimental images of the localized volume, and in vivo 1H spectroscopy experiments demonstrate the excellent spatial localization and water suppression.
Journal ArticleDOI

Cerebral ischemia and white matter edema in experimental hydrocephalus: a combined in vivo MRI and MRS study.

TL;DR: Phosphocreatine (PCr)/inorganic phosphate (Pi) ratios in hydrocephalic animals were decreased compared to controls, and lactate was detected during the acute and chronic stages of hydrocephalus.
Journal ArticleDOI

Sexual minority status and psychotic symptoms: findings from the Netherlands Mental Health Survey and Incidence Studies (NEMESIS)

TL;DR: The finding that LGB orientation is associated with psychotic symptoms adds to the growing body of literature linking minority status with psychosis and other mental health problems, and suggests that exposure to minority stress represents an important mechanism.
Journal ArticleDOI

Subthreshold symptoms and obsessive-compulsive disorder: evaluating the diagnostic threshold

TL;DR: In this article, the authors compared subjects with obsessive and/or compulsive symptoms who did not meet all criteria for obsessive-compulsive disorder (OCD) (subthreshold subjects) to subjects with full-blown OCD and also to subjects without obsessions or compulsions.
Journal ArticleDOI

Adiabatic water suppression using frequency selective excitation.

TL;DR: A new method for B1‐insensitive water suppression using adiabatic RF pulses is described, which was evalu ated by simulations based on the Bloch equations, in vitro experiments and an in vivo verification on neonatal and adult rat brain.