R J Nickles

Author PubWeight™ 50.73‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Evidence for transhemispheric diaschisis in unilateral stroke. Arch Neurol 1989 1.54
2 Glucose uptake by gliomas after treatment. A positron emission tomographic study. Arch Neurol 1989 1.49
3 Sherpa brain glucose metabolism and defense adaptations against chronic hypoxia. J Appl Physiol (1985) 1996 1.47
4 An evaluation of myocardial fatty acid and glucose uptake using PET with [18F]fluoro-6-thia-heptadecanoic acid and [18F]FDG in Patients with Congestive Heart Failure. J Nucl Med 2001 1.47
5 Myocardial free fatty acid and glucose use after carvedilol treatment in patients with congestive heart failure. Circulation 2001 1.35
6 A new internal pair production branching ratio of 90Y: the development of a non-destructive assay for 90Y and 90Sr. Appl Radiat Isot 2006 1.24
7 In vivo kinetics of [F-18]MEFWAY: a comparison with [C-11]WAY100635 and [F-18]MPPF in the nonhuman primate. Synapse 2010 1.12
8 The brain at high altitude: hypometabolism as a defense against chronic hypoxia? J Cereb Blood Flow Metab 1994 1.09
9 FluoroDOPA PET shows the nondopaminergic as well as dopaminergic destinations of levodopa. Neurology 1999 1.04
10 Enhanced cardiac metabolism of plasma glucose in high-altitude natives: adaptation against chronic hypoxia. J Appl Physiol (1985) 1995 0.99
11 Specific α4β2 nicotinic acetylcholine receptor binding of [F-18]nifene in the rhesus monkey. Synapse 2011 0.98
12 Synthesis and preliminary evaluation of (18)F-labeled 4-thia palmitate as a PET tracer of myocardial fatty acid oxidation. Nucl Med Biol 2000 0.98
13 Fluorine-18-fluoro-L-DOPA dosimetry with carbidopa pretreatment. J Nucl Med 1998 0.98
14 Cyclotron produced ⁴⁴gSc from natural calcium. Appl Radiat Isot 2012 0.97
15 Prenatal stress, moderate fetal alcohol, and dopamine system function in rhesus monkeys. Neurotoxicol Teratol 2004 0.96
16 Human biodistribution and dosimetry of the PET perfusion agent copper-62-PTSM. J Nucl Med 1998 0.90
17 A precise method for correcting count-rate losses in scintillation cameras. Med Phys 1986 0.90
18 Quantitative PET with positron emitters that emit prompt gamma rays. IEEE Trans Med Imaging 1995 0.90
19 Evaluation of fluorinated m-tyrosine analogs as PET imaging agents of dopamine nerve terminals: comparison with 6-fluoroDOPA. J Nucl Med 1997 0.88
20 Noninvasive assessment of aromatic L-amino acid decarboxylase activity in aging rhesus monkey brain in vivo. Synapse 2001 0.87
21 6-fluoroDOPA metabolism in rat striatum: time course of extracellular metabolites. Brain Res 2000 0.86
22 Comparison of fatty acid tracers FTHA and BMIPP during myocardial ischemia and hypoxia. J Nucl Med 1998 0.85
23 18F-labeled resin microspheres as surrogates for 90Y resin microspheres used in the treatment of hepatic tumors: a radiolabeling and PET validation study. Phys Med Biol 2007 0.83
24 Cerebral vasocapacitance and TIAs. Neurology 1989 0.83
25 Very high specific activity ⁶⁶/⁶⁸Ga from zinc targets for PET. Appl Radiat Isot 2012 0.83
26 Development of myocardial perfusion tracers for positron emission tomography. Int J Nucl Med Biol 1985 0.83
27 Myocardial uptake of the fatty acid analog 14-fluorine-18-fluoro-6-thia-heptadecanoic acid in comparison to beta-oxidation rates by tritiated palmitate. J Nucl Med 1998 0.82
28 Localization of trapping of 6-[(18)F]fluoro-L-m-tyrosine, an aromatic L-amino acid decarboxylase tracer for PET. Synapse 1999 0.82
29 Production of reactive fluorine-18. Int J Rad Appl Instrum A 1986 0.81
30 Synthesis of the fluorine-18 labeled inhalation anesthetics. Appl Radiat Isot 1994 0.80
31 Effects on regional brain metabolism of high-altitude hypoxia: a study of six US marines. Am J Physiol 1999 0.80
32 Water-cooled grid support for high-power irradiation with thin target windows. Appl Radiat Isot 2003 0.80
33 Contralateral flow reduction in unilateral stroke: evidence for transhemispheric diaschisis. Stroke 1987 0.79
34 The synthesis of fluorine-18 lomefloxacin and its preliminary use in human studies. Nucl Med Biol 1996 0.79
35 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
36 Aromatic L-amino acid decarboxylase (AAAD) activity in rhesus macaque striatum after MAO-B inhibition by Ro 16-6491. Synapse 2005 0.78
37 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
38 Cerebral perfusion reserve indexes determined by fluoromethane positron emission scanning. Stroke 1988 0.78
39 Early changes in tumor metabolism after treatment: the effects of stereotactic radiotherapy. Int J Radiat Oncol Biol Phys 1991 0.78
40 Quantitation of local cerebral blood flow and partition coefficient without arterial sampling: theory and validation. J Cereb Blood Flow Metab 1985 0.77
41 Pitfalls of regional cerebral blood flow analysis in cerebrovascular disease. Clin Nucl Med 1988 0.77
42 Blood flow asymmetry in carotid occlusive disease. Angiology 1992 0.77
43 Selected noble-gas partition coefficients. Phys Med Biol 1985 0.77
44 Aromatic L-amino acid decarboxylase (AAAD) inhibitors as carcinoid tumor-imaging agents: synthesis of 18F-labeled alpha-fluoromethyl-6-fluoro-m-tyrosine (FM-6-FmT). Appl Radiat Isot 2003 0.77
45 Synthesis and some characteristics of no-carrier added [18F]fluorotrimethylsilane. Int J Appl Radiat Isot 1985 0.77
46 Aromatic L-amino acid decarboxylase turnover in vivo in rhesus macaque striatum: a microPET study. Brain Res 2005 0.77
47 An efficient synthesis of dopamine transporter tracer [¹⁸F]FECNT. Appl Radiat Isot 2012 0.77
48 Changes in glucose uptake by malignant gliomas: preliminary study of prognostic significance. J Neurooncol 1991 0.77
49 Acute changes in glucose uptake after treatment: the effects of carmustine (BCNU) on human glioblastoma multiforme. J Neurooncol 1993 0.76
50 18F-5-fluorouracil studies in humans and animals. Int J Radiat Oncol Biol Phys 1980 0.76
51 Development of an improved target for [18F]F2 production. Appl Radiat Isot 1995 0.76
52 A catalytic generator for the production of H2 14O and H2 15O. Prog Nucl Med 1978 0.76
53 Using (10)CO2 for single subject characterization of the stimulus frequency dependence in visual cortex: a novel positron emission tomography tracer for human brain mapping. J Cereb Blood Flow Metab 2001 0.76
54 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
55 Cerebral diaschisis in patients with malignant glioma. J Neurooncol 1990 0.75
56 An investigation of 11C-methane, 13N-nitrous oxide and 11C-acetylene as regional cerebral blood flow agents. Phys Med Biol 1981 0.75
57 Blood flow reactivity to hypercapnia in strictly unilateral carotid disease: preliminary results. J Neurol Neurosurg Psychiatry 1991 0.75
58 Cross sections of the 36Ar(d,α)34mCl, 40Ar(d,α)38Cl, and 40Ar(d,p)41Ar nuclear reactions below 8.4 MeV. Appl Radiat Isot 2011 0.75
59 Noninvasive testing of cerebral perfusion reserve prior to coronary artery bypass graft surgery. Angiology 1988 0.75
60 Technetium 94m-labeled methoxyisobutyl isonitrile: dosimetry and resting cardiac imaging with positron emission tomography. J Nucl Cardiol 1998 0.75
61 Design of a three-dimensional positron camera for nuclear medicine. Phys Med Biol 1978 0.75
62 Investigation of the use of H(2)(15)O to estimate lipolysis and acyl-CoA hydrolysis. Int J Appl Radiat Isot 1978 0.75
63 A dual head anger camera system for the imaging of positron-emitting radionuclides. Int J Nucl Med Biol 1978 0.75
64 Use of a generalized modular data handling system in nuclear medicine. Radiology 1977 0.75
65 Rasmussen encephalitis: epilepsia partialis continua secondary to chronic encephalitis. Pediatr Neurol 1991 0.75
66 Cerebral vasocapacitance in human aging. J Neuroimaging 1994 0.75
67 An in vivo technique for the measurement of bone blood flow in animals. Phys Med Biol 1987 0.75
68 Improving the yield of 2-[18F]fluoro-2-deoxyglucose using a microwave cavity. Nucl Med Biol 1996 0.75
69 Experimental approaches to myocardial function studies: C15 O2 and 81m Kr. Semin Nucl Med 1977 0.75
70 Positron emission tomography in drug evaluation: influence of three different catechol-O-methyltransferase inhibitors on metabolism of [NCA] 6-[18F]fluoro-L-dopa in rhesus monkey. Nucl Med Biol 1995 0.75
71 Determination of the excitation function for the 10B(p,n)10C reaction with implications for the production of [10C]carbon dioxide for use as a PET tracer. Appl Radiat Isot 2000 0.75
72 The study of cerebral ischemic reversibility: Part II. Preliminary preoperative results of fluoromethane positron emission tomographic determination of perfusion reserve in patients with carotid TIA and stroke. Am J Physiol Imaging 1986 0.75
73 Production of [17F]CH3F (t1/2=65 s), an improved PET tracer for rCBF measurement. Appl Radiat Isot 2005 0.75
74 [18F]fluoro-beta-fluoromethylene-m-tyrosine analogs, potential PET agents for presynaptic dopamine terminals: synthesis and spectroscopic characterization. Int J Rad Appl Instrum A 1992 0.75
75 A dynamic phantom for radionuclide cardiology. J Nucl Med 1979 0.75
76 Synthesis of [18F]2-deoxy-2-fluoro-D-glucose from highly reactive [18F]tetraethylammonium fluoride prepared by hydrolysis of [18F]fluorotrimethylsilane. Int J Appl Radiat Isot 1985 0.75
77 Epilepsy surgery improves regional glucose metabolism on PET scan. A case report. J Neurol 1987 0.75
78 Inclusion of physiologic data into computerized nuclear medicine dynamic studies. J Nucl Med 1976 0.75
79 18F-labeled lower fluoroalkanes; reactor-produced gaseous physiological tracers. Int J Appl Radiat Isot 1981 0.75
80 The oxygen clock-a dual tracer physiological timer. Phys Med Biol 1975 0.75
81 Cerebral blood flow using PET measurements of fluoromethane kinetics. J Nucl Med 1981 0.75
82 Myocardial kinetics of a putative hypoxic tissue marker, 99mTc-labeled nitroimidazole (BMS-181321), after regional ischemia and reperfusion. Circulation 1995 0.75