R A Koeppe

Author PubWeight™ 149.98‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Episodic memory loss is related to hippocampal-mediated beta-amyloid deposition in elderly subjects. Brain 2008 6.29
2 A diagnostic approach in Alzheimer's disease using three-dimensional stereotactic surface projections of fluorine-18-FDG PET. J Nucl Med 1995 4.44
3 Relationships between biomarkers in aging and dementia. Neurology 2009 4.16
4 Age differences in the frontal lateralization of verbal and spatial working memory revealed by PET. J Cogn Neurosci 2000 3.66
5 Regional mu opioid receptor regulation of sensory and affective dimensions of pain. Science 2001 3.48
6 Spatial working memory in humans as revealed by PET. Nature 1993 3.42
7 Dissociating verbal and spatial working memory using PET. Cereb Cortex 1996 3.18
8 Verbal Working Memory Load Affects Regional Brain Activation as Measured by PET. J Cogn Neurosci 1997 3.00
9 Inhibition in verbal working memory revealed by brain activation. Proc Natl Acad Sci U S A 1998 3.00
10 The role of parietal cortex in verbal working memory. J Neurosci 1998 2.89
11 Anatomic standardization: linear scaling and nonlinear warping of functional brain images. J Nucl Med 1994 2.76
12 Brain activation in PTSD in response to trauma-related stimuli. Biol Psychiatry 1999 2.38
13 Components of verbal working memory: evidence from neuroimaging. Proc Natl Acad Sci U S A 1998 2.15
14 History of falls in Parkinson disease is associated with reduced cholinergic activity. Neurology 2009 2.01
15 Automated detection of the intercommissural line for stereotactic localization of functional brain images. J Nucl Med 1993 1.93
16 Degree of inhibition of cortical acetylcholinesterase activity and cognitive effects by donepezil treatment in Alzheimer's disease. J Neurol Neurosurg Psychiatry 2005 1.89
17 Spatial versus Object Working Memory: PET Investigations. J Cogn Neurosci 1995 1.88
18 In vivo mapping of cerebral acetylcholinesterase activity in aging and Alzheimer's disease. Neurology 1999 1.86
19 Cerebral cortical and subcortical cholinergic deficits in parkinsonian syndromes. Neurology 2010 1.79
20 Age differences in behavior and PET activation reveal differences in interference resolution in verbal working memory. J Cogn Neurosci 2000 1.76
21 Limited donepezil inhibition of acetylcholinesterase measured with positron emission tomography in living Alzheimer cerebral cortex. Ann Neurol 2000 1.73
22 A comparison of cerebral blood flow and glucose metabolism in olivopontocerebellar atrophy using PET. Neurology 1995 1.47
23 In vivo mapping of cholinergic terminals in normal aging, Alzheimer's disease, and Parkinson's disease. Ann Neurol 1996 1.45
24 Comparison of human cerebral activation pattern during cutaneous warmth, heat pain, and deep cold pain. J Neurophysiol 1996 1.42
25 Neuropsychological changes in olivopontocerebellar atrophy. Arch Neurol 1990 1.42
26 Isolation of specific interference processing in the Stroop task: PET activation studies. Neuroimage 1997 1.40
27 Presynaptic monoaminergic vesicles in Parkinson's disease and normal aging. Ann Neurol 1996 1.35
28 Decreased striatal dopaminergic innervation in REM sleep behavior disorder. Neurology 2000 1.33
29 The neural basis of task-switching in working memory: effects of performance and aging. Proc Natl Acad Sci U S A 2001 1.30
30 Limbic activation and psychophysiologic responses to aversive visual stimuli. Interaction with cognitive task. Neuropsychopharmacology 2000 1.28
31 Neuropsychological deficits are correlated with frontal hypometabolism in positron emission tomography studies of older alcoholic patients. Alcohol Clin Exp Res 1993 1.27
32 "Anatometabolic" tumor imaging: fusion of FDG PET with CT or MRI to localize foci of increased activity. J Nucl Med 1993 1.26
33 Stereotactic PET atlas of the human brain: aid for visual interpretation of functional brain images. J Nucl Med 1994 1.25
34 Positron emission tomographic analysis of cerebral structures activated specifically by repetitive noxious heat stimuli. J Neurophysiol 1994 1.20
35 PET evidence for an amodal verbal working memory system. Neuroimage 1996 1.19
36 The effect of emotional content on visual recognition memory: a PET activation study. Neuroimage 1998 1.19
37 Increased ventral striatal monoaminergic innervation in Tourette syndrome. Neurology 2003 1.18
38 Diminished glucose transport and phosphorylation in Alzheimer's disease determined by dynamic FDG-PET. J Nucl Med 1996 1.18
39 Response of the μ-opioid system to social rejection and acceptance. Mol Psychiatry 2013 1.15
40 Imaging the vesicular monoamine transporter. Adv Neurol 2001 1.15
41 Cerebellar and frontal hypometabolism in alcoholic cerebellar degeneration studied with positron emission tomography. Ann Neurol 1990 1.15
42 Nicotine effects on regional cerebral blood flow in awake, resting tobacco smokers. Synapse 2000 1.09
43 Vesicular monoamine transporter concentrations in bipolar disorder type I, schizophrenia, and healthy subjects. Biol Psychiatry 2001 1.08
44 Performance comparison of parameter estimation techniques for the quantitation of local cerebral blood flow by dynamic positron computed tomography. J Cereb Blood Flow Metab 1985 1.07
45 REM sleep behavior disorder is related to striatal monoaminergic deficit in MSA. Neurology 2003 1.06
46 Effects of nicotine on regional cerebral glucose metabolism in awake resting tobacco smokers. Neuroscience 2000 1.06
47 Regional cerebral blood flow effects of nicotine in overnight abstinent smokers. Biol Psychiatry 2001 1.04
48 Decreased striatal monoaminergic terminals in Huntington disease. Neurology 2000 1.03
49 Obstructive sleep apnea is related to a thalamic cholinergic deficit in MSA. Neurology 2003 1.03
50 Decreased striatal monoaminergic terminals in multiple system atrophy detected with positron emission tomography. Ann Neurol 1999 1.02
51 PET evidence for multiple strategies of categorization. Cogn Affect Behav Neurosci 2001 1.02
52 The effect of graded aversive stimuli on limbic and visual activation. Neuropsychologia 2000 1.00
53 Proton computed tomography of human specimens. Phys Med Biol 1982 1.00
54 Cerebral hypometabolism in progressive supranuclear palsy studied with positron emission tomography. Ann Neurol 1988 1.00
55 Inhibition of neutral amino acid transport across the human blood-brain barrier by phenylalanine. J Neurochem 1995 0.99
56 PET imaging of human gliomas with ligands for the peripheral benzodiazepine binding site. Ann Neurol 1989 0.97
57 High vesicular monoamine transporter binding in asymptomatic bipolar I disorder: sex differences and cognitive correlates. Am J Psychiatry 2000 0.96
58 Cerebral metabolic differences in Parkinson's and Alzheimer's diseases matched for dementia severity. J Nucl Med 1997 0.94
59 Decreased striatal monoaminergic terminals in severe chronic alcoholism demonstrated with (+)[11C]dihydrotetrabenazine and positron emission tomography. Ann Neurol 1998 0.93
60 Positron emission tomography measures of benzodiazepine binding in Alzheimer's disease. Arch Neurol 1995 0.91
61 Changes in medial cortical blood flow with a stimulus-response compatibility task. Neuropsychologia 1994 0.91
62 Buprenorphine-induced changes in mu-opioid receptor availability in male heroin-dependent volunteers: a preliminary study. Neuropsychopharmacology 2000 0.91
63 [15O]H2O positron emission tomography determination of cerebral blood flow during balloon test occlusion of the internal carotid artery. AJNR Am J Neuroradiol 1994 0.91
64 Distribution of pulmonary blood flow and total lung water during partial liquid ventilation in acute lung injury. Surgery 1997 0.91
65 In vivo cerebral metabolism and central benzodiazepine-receptor binding in temporal lobe epilepsy. Neurology 1993 0.90
66 Effects of abstinence and relapse upon neuropsychological function and cerebral glucose metabolism in severe chronic alcoholism. J Clin Exp Neuropsychol 1997 0.90
67 In vivo mapping of cholinergic neurons in the human brain using SPECT and IBVM. J Nucl Med 1994 0.89
68 In vivo measurement of the vesicular monoamine transporter in schizophrenia. Neuropsychopharmacology 2000 0.89
69 Alteration of corticothalamic perfusion ratios during a PTSD flashback. Depress Anxiety 1997 0.88
70 Positron emission tomographic studies of cerebral benzodiazepine-receptor binding in chronic alcoholics. Ann Neurol 1996 0.88
71 Spinocerebellar ataxia type 1 with multiple system degeneration and glial cytoplasmic inclusions. Ann Neurol 1996 0.88
72 Quantification of muscarinic cholinergic receptors with [11C]NMPB and positron emission tomography: method development and differentiation of tracer delivery from receptor binding. J Cereb Blood Flow Metab 1998 0.87
73 Determination of regional rate constants from dynamic FDG-PET studies in Parkinson's disease. J Nucl Med 1996 0.85
74 Pheochromocytomas that do not accumulate metaiodobenzylguanidine: localization with PET and administration of FDG. Radiology 1993 0.85
75 In vivo imaging of the brain vesicular monoamine transporter. J Nucl Med 1995 0.85
76 In vivo muscarinic cholinergic receptor imaging in human brain with [11C]scopolamine and positron emission tomography. J Cereb Blood Flow Metab 1992 0.85
77 Neoplasms in a pediatric population: 2-[F-18]-fluoro-2-deoxy-D-glucose PET studies. Radiology 1995 0.84
78 Motor dysfunction in olivopontocerebellar atrophy is related to cerebral metabolic rate studied with positron emission tomography. Ann Neurol 1988 0.84
79 Novel insertional presenilin 1 mutation causing Alzheimer disease with spastic paraparesis. Neurology 2004 0.84
80 Patterns of cerebral glucose metabolism detected with positron emission tomography differ in multiple system atrophy and olivopontocerebellar atrophy. Ann Neurol 1994 0.83
81 In vivo imaging of vesicular monoamine transporters in human brain using [11C]tetrabenazine and positron emission tomography. J Neurochem 1993 0.83
82 Differentiation of radioligand delivery and binding in the brain: validation of a two-compartment model for [11C]flumazenil. J Cereb Blood Flow Metab 1991 0.83
83 Evolution of sporadic olivopontocerebellar atrophy into multiple system atrophy. Neurology 2000 0.83
84 Cerebellar and brainstem hypometabolism in olivopontocerebellar atrophy detected with positron emission tomography. Ann Neurol 1988 0.83
85 Cerebral glucose hypermetabolism in Friedreich's ataxia detected with positron emission tomography. Ann Neurol 1990 0.83
86 Biodistribution, dosimetry, metabolism and monkey PET studies of [18F]GBR 13119. Imaging the dopamine uptake system in vivo. Int J Rad Appl Instrum B 1989 0.82
87 Striatal presynaptic monoaminergic vesicles are not increased in Tourette's syndrome. Neurology 1999 0.82
88 Benzodiazepine receptor binding in cerebellar degenerations studied with positron emission tomography. Ann Neurol 1995 0.82
89 Positron emission tomography measures of benzodiazepine receptors in Huntington's disease. Ann Neurol 1993 0.82
90 Verbal fluency and positron emission tomographic mapping of regional cerebral glucose metabolism. Cortex 1992 0.81
91 Parametric in vivo imaging of benzodiazepine receptor distribution in human brain. Ann Neurol 1991 0.80
92 A relationship between metabolism in frontal lobes and cerebellum in normal subjects studied with PET. J Cereb Blood Flow Metab 1988 0.80
93 Synthesis, in vivo biodistribution and dosimetry of [11C]N-methylpiperidyl benzilate ([11C]NMPB), a muscarinic acetylcholine receptor antagonist. Nucl Med Biol 1995 0.80
94 The significance of family history status in relation to neuropsychological test performance and cerebral glucose metabolism studied with positron emission tomography in older alcoholic patients. Alcohol Clin Exp Res 1998 0.80
95 Striatal [11C]dihydrotetrabenazine and [11C]methylphenidate binding in Tourette syndrome. Neurology 2009 0.80
96 PET study of greater visual activation in schizophrenia. Am J Psychiatry 1997 0.79
97 Cerebral benzodiazepine receptor binding in vivo in patients with recurrent hepatic encephalopathy. Hepatology 1997 0.79
98 Instability of localization of cerebral blood flow activation foci with parametric maps. J Cereb Blood Flow Metab 1993 0.79
99 Arterial/venous plasma nicotine concentrations following nicotine nasal spray. Eur J Clin Pharmacol 1999 0.79
100 Decreased striatal monoaminergic terminals in olivopontocerebellar atrophy and multiple system atrophy demonstrated with positron emission tomography. Ann Neurol 1996 0.79
101 Visual evoked potentials and positron emission tomographic mapping of regional cerebral blood flow and cerebral metabolism: can the neuronal potential generators be visualized? Electroencephalogr Clin Neurophysiol 1982 0.79
102 Mixing in the human carotid artery during carotid drug infusion studied with PET. J Cereb Blood Flow Metab 1989 0.78
103 Alternative approach to single-scan estimation of cerebral glucose metabolic rate using glucose analogs, with particular application to ischemia. J Cereb Blood Flow Metab 1984 0.78
104 Selection of weighting factors for quantification of PET radioligand binding using simplified reference tissue models with noisy input functions. Phys Med Biol 2012 0.78
105 Assessment of muscarinic receptor concentrations in aging and Alzheimer disease with [11C]NMPB and PET. Synapse 2001 0.78
106 Global cerebral blood flow increase reveals focal hypoperfusion in schizophrenia. Neuropsychopharmacology 1999 0.78
107 Progressive subcortical gliosis and progressive supranuclear palsy can have similar clinical and PET abnormalities. J Neurol Neurosurg Psychiatry 1992 0.78
108 Radiolabeled cholinesterase substrates: in vitro methods for determining structure-activity relationships and identification of a positron emission tomography radiopharmaceutical for in vivo measurement of butyrylcholinesterase activity. J Cereb Blood Flow Metab 2001 0.77
109 Kinetic evaluation of positron-emitting muscarinic receptor ligands employing direct intracarotid injection. J Cereb Blood Flow Metab 1996 0.77
110 Effects of disulfiram on positron emission tomography and neuropsychological studies in severe chronic alcoholism. Alcohol Clin Exp Res 1996 0.77
111 Synthesis, rodent biodistribution, dosimetry, metabolism, and monkey images of carbon-11-labeled (+)-2 alpha-tropanyl benzilate: a central muscarinic receptor imaging agent. J Nucl Med 1992 0.77
112 Changes in sensory-cognitive input: effects on cerebral blood flow. J Cereb Blood Flow Metab 1990 0.77
113 Absence of normal activation of the left anterior fusiform gyrus during naming in left temporal lobe epilepsy. Neurology 1998 0.77
114 Quantitation of local cerebral blood flow and partition coefficient without arterial sampling: theory and validation. J Cereb Blood Flow Metab 1985 0.77
115 Social feedback activates the endogenous opioid system. Mol Psychiatry 2013 0.76
116 Determination of regional cerebral blood flow in patients with cerebral infarction. Use of fluoromethane labeled with fluorine 18 and positron emission tomography. Arch Neurol 1984 0.76
117 Patterns of neuropsychological performance in multiple system atrophy compared to sporadic and hereditary olivopontocerebellar atrophy. Brain Cogn 2002 0.76
118 Cerebral metabolic activity in idiopathic dystonia studied with positron emission tomography. Adv Neurol 1988 0.76
119 Anxiety and cerebral cortical metabolism in normal persons. Psychiatry Res 1990 0.76
120 Stereotaxic summation analysis of human cerebral benzodiazepine binding maps. J Cereb Blood Flow Metab 1996 0.75
121 Structural and functional brain imaging in Friedreich's ataxia. Arch Neurol 1994 0.75
122 In vivo quantification of cerebral muscarinic receptors in normal human aging using positron emission tomography and [11C]tropanyl benzilate. J Cereb Blood Flow Metab 1996 0.75
123 Distinction between cerebral blood flow and vascular activity by PET tracer kinetic analysis: practical and physiologic considerations. J Nucl Med 2001 0.75
124 Scintigraphic portrayal of beta receptors in the heart. J Nucl Med 1991 0.75
125 [Integrated and automated data analysis for neuronal activation studies using positron emission tomography: methodology and applications]. Kaku Igaku 1994 0.75
126 Benzodiazepine receptor binding in the cerebellum in multiple system atrophy and olivopontocerebellar atrophy studied with positron emission tomography. Adv Neurol 1996 0.75
127 Speech disorders in olivopontocerebellar atrophy correlate with positron emission tomography findings. Ann Neurol 1988 0.75
128 Neutron computed tomography. J Comput Assist Tomogr 1981 0.75
129 Epilepsy surgery improves regional glucose metabolism on PET scan. A case report. J Neurol 1987 0.75
130 [Fast and accurate numerical method for principal components analysis dealing with large image data sets]. Kaku Igaku 1996 0.75