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R. Nkoulou · SciRah

Researcher profile · Semantic Scholar

R. Nkoulou

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R. Nkoulou — researcher profile on SciRah

h-index: 28
Works: 94
Citations: 2,611

Most-cited papers

Diagnostic Value of 13N-Ammonia Myocardial Perfusion PET: Added Value of Myocardial Flow Reserve
Michael Fiechter, J. Ghadri, Cathérine Gebhard, T. Fuchs +6 more
2012Journal of Nuclear Medicine215 citations Open access
Semantic Scholar
Ultrafast nuclear myocardial perfusion imaging on a new gamma camera with semiconductor detector technique: first clinical validation
R. Buechel, Bernhard A. Herzog, L. Husmann, I. Burger +7 more
2010European Journal of Nuclear Medicine and Molecular Imaging190 citations Open access
Semantic Scholar
Deep learning-assisted ultra-fast/low-dose whole-body PET/CT imaging
Amirhossein Sanaat, Isaac Shiri, Hossein ARABI, I. Mainta +2 more
2021European Journal of Nuclear Medicine and Molecular Imaging144 citations Open access
Semantic Scholar
Prognostic value of cardiac hybrid imaging integrating single-photon emission computed tomography with coronary computed tomography angiography.
A. Pazhenkottil, R. Nkoulou, J. Ghadri, Bernhard A. Herzog +7 more
2011European Heart Journal141 citations Open access
Semantic Scholar
Absolute Myocardial Blood Flow and Flow Reserve Assessed by Gated SPECT with Cadmium–Zinc–Telluride Detectors Using 99mTc-Tetrofosmin: Head-to-Head Comparison with 13N-Ammonia PET
R. Nkoulou, T. Fuchs, A. Pazhenkottil, S. Kuest +7 more
2016Journal of Nuclear Medicine135 citations Open access
Semantic Scholar
Improved Outcome Prediction by SPECT Myocardial Perfusion Imaging After CT Attenuation Correction
A. Pazhenkottil, J. Ghadri, R. Nkoulou, M. Wolfrum +6 more
2011Journal of Nuclear Medicine95 citations Open access
Semantic Scholar
Low-dose computed tomography coronary angiography with prospective electrocardiogram triggering: feasibility in a large population.
R. Buechel, L. Husmann, Bernhard A. Herzog, A. Pazhenkottil +5 more
2011Journal of the American College of Cardiology93 citations Open access
Semantic Scholar
Anti-apolipoprotein A-1 IgG as an independent cardiovascular prognostic marker affecting basal heart rate in myocardial infarction.
N. Vuilleumier, M. Rossier, S. Pagano, M. Python +6 more
2010European Heart Journal88 citations Open access
Semantic Scholar
Nuclear myocardial perfusion imaging with a novel cadmium-zinc-telluride detector SPECT/CT device: first validation versus invasive coronary angiography
Michael Fiechter, J. Ghadri, S. Kuest, A. Pazhenkottil +5 more
2011European Journal of Nuclear Medicine and Molecular Imaging86 citations Open access
Semantic Scholar
Inter-scan variability of coronary artery calcium scoring assessed on 64-multidetector computed tomography vs. dual-source computed tomography: a head-to-head comparison.
J. Ghadri, R. Goetti, Michael Fiechter, A. Pazhenkottil +8 more
2011European Heart Journal84 citations Open access
Semantic Scholar
Very high coronary calcium score unmasks obstructive coronary artery disease in patients with normal SPECT MPI
J. Ghadri, A. Pazhenkottil, R. Nkoulou, R. Goetti +7 more
2011Heart80 citations Open access
Semantic Scholar
Impact of cardiac hybrid single-photon emission computed tomography/computed tomography imaging on choice of treatment strategy in coronary artery disease
A. Pazhenkottil, R. Nkoulou, J. Ghadri, Bernhard A. Herzog +8 more
2011European Heart Journal74 citations Open access
Semantic Scholar
Long-term prognostic value of left ventricular dyssynchrony assessment by phase analysis from myocardial perfusion imaging
A. Pazhenkottil, R. Buechel, L. Husmann, R. Nkoulou +5 more
2010Heart73 citations Open access
Semantic Scholar
Validation of CT Attenuation Correction for High-Speed Myocardial Perfusion Imaging Using a Novel Cadmium-Zinc-Telluride Detector Technique
Bernhard A. Herzog, R. Buechel, L. Husmann, A. Pazhenkottil +7 more
2010Journal of Nuclear Medicine71 citations Open access
Semantic Scholar
Whole-Body SPECT/CT versus Planar Bone Scan with Targeted SPECT/CT for Metastatic Workup
O. Rager, R. Nkoulou, Nadia Exquis, V. Garibotto +6 more
2017BioMed Research International67 citations Open access
Semantic Scholar
Amyloid PET imaging in cardiac amyloidosis: a pilot study using 18F-flutemetamol positron emission tomography
S. Dietemann, R. Nkoulou
2019Annals of Nuclear Medicine64 citations
Semantic Scholar
Subclinical coronary artery disease in Swiss HIV-positive and HIV-negative persons
P. Tarr, B. Ledergerber, A. Calmy, T. Doco-Lecompte +6 more
2018European Heart Journal62 citations Open access
Semantic Scholar
Semiconductor Detectors Allow Low-Dose–Low-Dose 1-Day SPECT Myocardial Perfusion Imaging
R. Nkoulou, A. Pazhenkottil, S. Kuest, J. Ghadri +9 more
2011Journal of Nuclear Medicine62 citations Open access
Semantic Scholar
TRAMADOL/ACETAMINOPHEN COMBINATION TABLETS FOR THE TREATMENT OF PAIN ASSOCIATED WITH OSTEOARTHRITIS
C. Graf, R. Nkoulou, Véronique Trombert, J. Perrenoud
2005Journal of The American Geriatrics Society60 citations
Semantic Scholar
New reconstruction algorithm allows shortened acquisition time for myocardial perfusion SPECT
I. Valenta, V. Treyer, L. Husmann, O. Gaemperli +7 more
2010European Journal of Nuclear Medicine and Molecular Imaging58 citations Open access
Semantic Scholar
Potential Applications of PET/MR Imaging in Cardiology
O. Ratib, R. Nkoulou
2014Journal of Nuclear Medicine57 citations Open access
Semantic Scholar
Image quality and radiation dose comparison of prospectively triggered low-dose CCTA: 128-slice dual-source high-pitch spiral versus 64-slice single-source sequential acquisition
J. Ghadri, S. Kuest, R. Goetti, Michael Fiechter +8 more
2012The International Journal of Cardiovascular Imaging52 citations Open access
Semantic Scholar
Validation of a new contrast material protocol adapted to body surface area for optimized low-dose CT coronary angiography with prospective ECG-triggering
A. Pazhenkottil, L. Husmann, R. Buechel, Bernhard A. Herzog +7 more
2010The International Journal of Cardiovascular Imaging49 citations Open access
Semantic Scholar
Ultrafast assessment of left ventricular dyssynchrony from nuclear myocardial perfusion imaging on a new high-speed gamma camera
A. Pazhenkottil, R. Buechel, Bernhard A. Herzog, R. Nkoulou +6 more
2010European Journal of Nuclear Medicine and Molecular Imaging43 citations Open access
Semantic Scholar
Real-time breath-hold triggering of myocardial perfusion imaging with a novel cadmium-zinc-telluride detector gamma camera
R. Buechel, A. Pazhenkottil, Bernhard A. Herzog, L. Husmann +6 more
2010European Journal of Nuclear Medicine and Molecular Imaging38 citations Open access
Semantic Scholar
Myocardial perfusion imaging with 13N-ammonia PET is a strong predictor for outcome.
Michael Fiechter, Cathérine Gebhard, J. Ghadri, T. Fuchs +6 more
2013International Journal of Cardiology33 citations
Semantic Scholar
Structural epicardial disease and microvascular function are determinants of an abnormal longitudinal myocardial blood flow difference in cardiovascular risk individuals as determined with PET/CT
I. Valenta, A. Quercioli, G. Vincenti, R. Nkoulou +7 more
2010Journal of Nuclear Cardiology31 citations Open access
Semantic Scholar
Downstream resource utilization following hybrid cardiac imaging with an integrated cadmium-zinc-telluride/64-slice CT device
Michael Fiechter, J. Ghadri, M. Wolfrum, S. Kuest +7 more
2012European Journal of Nuclear Medicine and Molecular Imaging30 citations Open access
Semantic Scholar
Left ventricular dyssynchrony assessment by phase analysis from gated PET-FDG scans
A. Pazhenkottil, R. Buechel, R. Nkoulou, J. Ghadri +7 more
2011Journal of Nuclear Cardiology28 citations Open access
Semantic Scholar
Diagnostic value of PET-measured heterogeneity in myocardial blood flows during cold pressor testing for the identification of coronary vasomotor dysfunction
T. Schindler, Xiao-li Zhang, G. Vincenti, L. Mhiri +6 more
2007Journal of Nuclear Cardiology27 citations Open access
Semantic Scholar
Main pulmonary artery diameter from attenuation correction CT scans in cardiac SPECT accurately predicts pulmonary hypertension
I. Burger, L. Husmann, Bernhard A. Herzog, R. Buechel +6 more
2011Journal of Nuclear Cardiology23 citations Open access
Semantic Scholar
Spinal uptake mimicking metastasis in SPECT/CT bone scan in a patient with superior vena cava obstruction.
O. Rager, R. Nkoulou, V. Garibotto, Sana Boudabbous +1 more
2013Clinical Nuclear Medicine19 citations Open access
Semantic Scholar
Rapid cardiac hybrid imaging with minimized radiation dose for accurate non-invasive assessment of ischemic coronary artery disease.
Bernhard A. Herzog, L. Husmann, R. Buechel, A. Pazhenkottil +8 more
2011International Journal of Cardiology18 citations Open access
Semantic Scholar
Prognostic performance of low-dose coronary CT angiography with prospective ECG triggering
R. Buechel, A. Pazhenkottil, Bernhard A. Herzog, M. Brueckner +6 more
2011Heart18 citations Open access
Semantic Scholar
Expert recommendation from the Swiss Amyloidosis Network (SAN) for systemic AL-amyloidosis.
R. Schwotzer, A. Flammer, S. Gerull, T. Pabst +39 more
2020Swiss medical weekly16 citations Open access
Semantic Scholar
Computed tomography calcium score scan for attenuation correction of N-13 ammonia cardiac positron emission tomography: effect of respiratory phase and registration method
H. Zaidi, R. Nkoulou, S. Bond, A. Baskın +3 more
2013The International Journal of Cardiovascular Imaging16 citations Open access
Semantic Scholar
Downstream indication to revascularization following hybrid cardiac PET/MRI: preliminary results
Julien Priamo, D. Adamopoulos, O. Rager, A. Frei +4 more
2017Nuclear medicine communications15 citations
Semantic Scholar
High efficiency gamma camera enables ultra-low fixed dose stress/rest myocardial perfusion imaging
R. Nkoulou, T. Fuchs, A. Pazhenkottil, M. Wolfrum +3 more
2018European Heart Journal-Cardiovascular Imaging14 citations Open access
Semantic Scholar
Antiretroviral Drugs Associated with Subclinical Coronary Artery Disease in the Swiss HIV Cohort Study.
H. Kovari, A. Calmy, T. Doco-Lecompte, R. Nkoulou +55 more
2019Clinical Infectious Diseases13 citations Open access
Semantic Scholar
Cardiovascular clinical applications of PET/MRI
O. Ratib, R. Nkoulou, M. Schwaiger
2013Clinical and translational imaging12 citations Open access
Semantic Scholar
Myocardial perfusion imaging with real-time respiratory triggering: Impact of inspiration breath-hold on left ventricular functional parameters
R. Buechel, L. Husmann, A. Pazhenkottil, R. Nkoulou +5 more
2010Journal of Nuclear Cardiology12 citations Open access
Semantic Scholar
Impact of CT attenuation correction on the viability pattern assessed by 99mTc-tetrofosmin SPECT/18F-FDG PET
R. Nkoulou, A. Pazhenkottil, R. Buechel, L. Husmann +5 more
2011The International Journal of Cardiovascular Imaging11 citations Open access
Semantic Scholar
Management of transthyretin amyloidosis.
A. Condoluci, M. Théaudin, R. Schwotzer, A. Pazhenkottil +40 more
2021Swiss medical weekly10 citations Open access
Semantic Scholar
Myocardial bridging causing infarction and ischaemia.
L. Husmann, R. Nkoulou, M. Wolfrum, P. Kaufmann
2011European Heart Journal10 citations Open access
Semantic Scholar
Polygenic Risk Scores for Prediction of Subclinical Coronary Artery Disease in Persons Living with HIV: The Swiss HIV Cohort Study.
Isabella C. Schoepf, C. Thorball, H. Kovari, B. Ledergerber +9 more
2022Clinical Infectious Diseases8 citations Open access
Semantic Scholar
Prognostic value of revascularising viable myocardium in elderly patients with stable coronary artery disease and left ventricular dysfunction: a PET/CT study
M. Namdar, O. Rager, Julien Priamo, A. Frei +4 more
2018The International Journal of Cardiovascular Imaging8 citations
Semantic Scholar
Longitudinal Progression of Subclinical Coronary Atherosclerosis in Swiss HIV-Positive Compared With HIV-Negative Persons Undergoing Coronary Calcium Score Scan and CT Angiography
P. Tarr, B. Ledergerber, A. Calmy, T. Doco-Lecompte +58 more
2020Open Forum Infectious Diseases7 citations Open access
Semantic Scholar
Lowering heart rate with an optimised breathing protocol for prospectively ECG-triggered CT coronary angiography.
L. Husmann, Bernhard A. Herzog, A. Pazhenkottil, R. Buechel +7 more
2011British Journal of Radiology7 citations Open access
Semantic Scholar
Gated SPECT myocardial perfusion imaging with cadmium-zinc-telluride detectors allows real-time assessment of dobutamine-stress-induced wall motion abnormalities
R. Nkoulou, M. Wolfrum, A. Pazhenkottil, Michael Fiechter +3 more
2019Journal of Nuclear Cardiology6 citations Open access
Semantic Scholar
The importance of 18F-FDG cardiac PET/CT for the assessment of myocardial viability in ischaemic heart disease.
F. Caobelli, C. H. Kamani, R. Nkoulou, R. Buechel +1 more
2021Swiss medical weekly5 citations Open access
Semantic Scholar

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A. Pazhenkottil×31
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R. Buechel×29
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Bernhard A. Herzog

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