D. Roberts

Publications123
h-index18
Citations1,853
Highly Influential Citations66
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Tissue specific perfusion imaging using arterial spin labeling
Quantitative magnetic resonance measurements of regional tissue perfusion can be obtained using magnetically labeled arterial water as a diffusable tracer. Continuous labeling is achieved in flowing… Expand
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Upper gastrointestinal hemorrhage and transcatheter embolotherapy: clinical and technical factors impacting success and survival.
PURPOSE To identify clinical and technical factors influencing the outcome of transcatheter embolotherapy for nonvariceal upper gastrointestinal (GI) hemorrhage and to quantify the impact of… Expand
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Magnetic resonance imaging of the brain: Blood partition coefficient for water: Application to spin‐tagging measurement of perfusion
We describe the use of relative proton density imaging to obtain spatially resolved measurements of the brain:blood partition coefficient for water. Values of relative proton density and apparent‐T1… Expand
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Perfusion imaging with compensation for asymmetric magnetization transfer effects
The effects of off‐resonance radio‐frequency irradiation on the intensity of the MR signal from water protons in the cat brain are asymmetric around the chemical shift of the water signal. This… Expand
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Renal perfusion in humans: MR imaging with spin tagging of arterial water.
The authors tested a noninvasive technique for magnetic resonance imaging of perfusion in human kidneys. Magnetic labeling (spin tagging) of aortic arterial water was performed to generate an… Expand
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Quantitative magnetic resonance imaging of human brain perfusion at 1.5 T using steady-state inversion of arterial water.
We report our experience using a noninvasive magnetic resonance technique for quantitative imaging of human brain perfusion at 1.5 T. This technique uses magnetically inverted arterial water as a… Expand
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Identification of genes associated with platinum drug sensitivity and resistance in human ovarian cancer cells
Platinum-based chemotherapeutic regimens are ultimately unsuccessful due to intrinsic or acquired drug resistance. Understanding the molecular basis for platinum drug sensitivity/resistance is… Expand
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Segmental arterial mediolysis: angioplasty of bilateral renal artery stenoses with 2-year imaging follow-up.
Segmental arterial mediolysis (SAM) is a rare condition caused by loss of muscular elements in the walls of medium-sized, usually visceral, arteries. This causes dissection, occlusion, aneurysm… Expand
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Contrast-enhanced MR angiography for evaluation of vascular complications of the pancreatic transplant.
Vascular complications are a common cause of postoperative dysfunction in a pancreatic transplant. Coronal three-dimensional (3D) contrast material-enhanced magnetic resonance (MR) angiography… Expand
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Pulmonary perfusion: respiratory-triggered three-dimensional MR imaging with arterial spin tagging--preliminary results in healthy volunteers.
The authors used a spin-tagging method of magnetic resonance perfusion imaging to measure pulmonary perfusion in eight healthy volunteers with use of a respiratory-triggered three-dimensional pulse… Expand
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