Subarachnoid hemorrhage: aneurysm detection and preoperative evaluation with CT angiography.

BK Velthuis, GJ Rinkel, LM Ramos, TD Witkamp… - Radiology, 1998 - pubs.rsna.org
PURPOSE: To evaluate if computed tomographic (CT) angiography can replace digital
subtraction angiography (DSA) for aneurysm detection and as preoperative work-up in patients …

Cerebral lactate and N-acetyl-aspartate/choline ratios in asphyxiated full-term neonates demonstrated in vivo using proton magnetic resonance spectroscopy

…, J van der Grond, GH Jansen, TD Witkamp… - Pediatric …, 1994 - nature.com
ABSTRACT: The purpose of this study was to test the hypothesis that a high lactate signal
and a low N-acetyl-aspartate/choline ratio in neonates with postasphyxial encephalopathy …

Computerized tomography angiography in patients with subarachnoid hemorrhage: from aneurysm detection to treatment without conventional angiography

BK Velthuis, MS van Leeuwen, TD Witkamp… - Journal of …, 1999 - thejns.org
Object. The purpose of this study was to determine prospectively whether and to what extent
computerized tomography (CT) angiography can serve as the sole imaging method for a …

Magnetic resonance imaging of the brachial plexus in patients with multifocal motor neuropathy

…, LH Van den Berg, H Franssen, TD Witkamp… - Neurology, 1997 - AAN Enterprises
We studied whether magnetic resonance (MR) imaging of the brachial plexus is useful to
distinguish multifocal motor neuropathy (MMN) from lower motor neuron disease (LMND) and …

Brain volumes and cerebrovascular lesions on MRI in patients with atherosclerotic disease. The SMART-MR study

…, APA Appelman, KL Vincken, A Algra, TD Witkamp… - Atherosclerosis, 2010 - Elsevier
OBJECTIVE: To estimate brain volumes, white matter lesion (WML) volume and asymptomatic
infarcts on MRI in a large cohort of patients with atherosclerotic disease. METHODS: …

Multifocal inflammatory demyelinating neuropathy: a distinct clinical entity?

…, H Franssen, M Vermeulen, TD Witkamp… - Neurology, 2000 - AAN Enterprises
Background: Several patients have been reported with an asymmetric sensory or sensorimotor
demyelinating neuropathy not fulfilling the diagnostic criteria for chronic inflammatory …

COL4A1 mutation in two preterm siblings with antenatal onset of parenchymal hemorrhage

…, FW Verheijen, E Verbeek, TD Witkamp… - Annals of …, 2009 - Wiley Online Library
Objective To report the presence of intracerebral hemorrhage and porencephaly, both present
at birth, in two preterm infants with a mutation in the collagen 4 A1 gene. Methods Two …

Perimesencephalic hemorrhage: exclusion of vertebrobasilar aneurysms with CT angiography

BK Velthuis, GJE Rinkel, LMP Ramos, TD Witkamp… - Stroke, 1999 - Am Heart Assoc
Background and Purpose—It is important to recognize a perimesencephalic pattern of
hemorrhage in patients with subarachnoid hemorrhage (SAH), because in 95% of these patients …

Temporal lobe epilepsy: the various MR appearances of histologically proven mesial temporal sclerosis.

…, GH Jansen, G De Kort, TD Witkamp… - American journal …, 1994 - Am Soc Neuroradiology
PURPOSE To determine the frequency of appearance of various MR signs in mesial temporal
sclerosis, to determine the optimal scanning planes for their visualization, and to propose …

Cerebral microbleeds on MR imaging: comparison between 1.5 and 7T

…, T Takahara, TD Witkamp… - American journal …, 2011 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: The detection of microbleeds differs strongly between
studies, due to differences in scan protocol. This study aims to compare the visualization of …