European radiology
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Comparative Study
Non-enhanced magnetic resonance imaging of unruptured intracranial aneurysms at 7 Tesla: Comparison with digital subtraction angiography.
To prospectively evaluate non-contrast-enhanced 7-Tesla (T) MRA for delineation of unruptured intracranial aneurysms (UIAs) in comparison with DSA. ⋯ • Non-enhanced 7-T MRA allowed excellent delineation of unruptured intracranial aneurysms (UIAs). • Image quality at 7-T was comparable with DSA considering both sequences. • Assessment of UIAs is a promising clinical application of ultra-high-field MRA.
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Observational Study
Assessment of ventriculo-vascular properties in repaired coarctation using cardiac magnetic resonance-derived aortic, left atrial and left ventricular strain.
In patients with repaired coarctation of aorta (CoA), we assessed ventriculo-vascular characteristics using CMR-derived aortic area strain (AAS), left atrial (LA) and left ventricular (LV) longitudinal and circumferential strain (LS, CS). ⋯ • Impaired arterial strain is a measure of increased stiffness in arteries • Ascending aorta strain correlates with left ventricular mass and longitudinal strain • Ascending aorta strain is significantly lower in hypertensive coarctation patients • Hypertension may be a consequence of vascular pathology persisting despite repair.
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The vast majority of superior vena cava (SVC) syndromes are of malignant causes, but with growing use of indwelling central catheters and implanted cardiac devices, benign SVC syndromes are becoming more frequent. The main objective of this study is to evaluate long term outcome in patients treated for benign SVC syndrome by endovascular techniques. ⋯ • Malposition of indwelling central catheter can cause superior vena cava obstruction. • Image-guided catheter placement helps prevent superior vena cava obstruction. • Imaging and superior vena cava obstruction classification allows adequate procedure planning. • Endovascular techniques are safe and effective for superior vena cava syndrome treatment.
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Multicenter Study
Presurgical motor, somatosensory and language fMRI: Technical feasibility and limitations in 491 patients over 13 years.
To analyse the long-term feasibility and limitations of presurgical fMRI in a cohort of tumour and epilepsy patients with different MR-scanners at 1.5 and 3.0 T. ⋯ • Standardised presurgical motor and language fMRI is robust across various MRI platforms. • Motor fMRI is less dependent on field strength than language fMRI. • fMRI task failures are relatively low and are reduced by paradigm repetition.
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Comparative Study
Comparison of percutaneous long bone cementoplasty with or without embedding a cement-filled catheter for painful long bone metastases with impending fracture.
To compare the efficacy of percutaneous long bone cementoplasty (PLBC) with and without embedding a cement-filled catheter in the medullary canal (ECFC) for painful long bone metastases with impending fracture. ⋯ • Metastases in long bones may cause pain and subsequent pathological fractures. • Cementoplasty resulted in significant pain relief in patients with long bone metastases. • Combination of PLBC and ECFC may reduce the incidence of fractures.