User profiles for R.H. Nunes

Renato Hoffmann Nunes

Santa Casa de São Paulo
Verified email at spr.org.br
Cited by 1815

Gadolinium-based contrast agent accumulation and toxicity: an update

…, RC Semelka, M Ramalho, RH Nunes… - American Journal …, 2016 - Am Soc Neuroradiology
In current practice, gadolinium-based contrast agents have been considered safe when used
at clinically recommended doses in patients without severe renal insufficiency. The causal …

High signal intensity in globus pallidus and dentate nucleus on unenhanced T1-weighted MR images: evaluation of two linear gadolinium-based contrast agents

J Ramalho, M Castillo, M AlObaidy, RH Nunes… - Radiology, 2015 - pubs.rsna.org
Purpose To determine if a correlation exists between the number of previous enhanced
magnetic resonance (MR) imaging examinations and high signal intensity in the globus pallidus (…

[HTML][HTML] The effects of social media opinion leaders' recommendations on followers' intention to buy

RH Nunes, JB Ferreira, AS Freitas… - Revista Brasileira de …, 2018 - SciELO Brasil
Purpose–The objective of this study is to investigate how consumers are influenced in their
intention to buy after having access–within social media–to persuasive messages sent out by …

Neuromyelitis optica spectrum disorders: spectrum of MR imaging findings and their differential diagnosis

BG Dutra, AJ da Rocha, RH Nunes, ACM Maia - Radiographics, 2018 - pubs.rsna.org
Neuromyelitis optica (NMO) is an autoimmune demyelinating disorder for which the aquaporin-4
(AQP4) water channels are the major target antigens. Advances in the understanding of …

Imaging of Creutzfeldt-Jakob disease: imaging patterns and their differential diagnosis

…, FT Pacheco, BR Barros, I Aguiar Littig, RH Nunes… - Radiographics, 2017 - pubs.rsna.org
Diagnosis of sporadic Creutzfeldt-Jakob disease (sCJD) remains a challenge because of
the large variability of the clinical scenario, especially in its early stages, which may mimic …

Multinodular and vacuolating neuronal tumor of the cerebrum: a new “leave me alone” lesion with a characteristic imaging pattern

RH Nunes, CC Hsu, AJ da Rocha… - American Journal …, 2017 - Am Soc Neuroradiology
Multinodular and vacuolating neuronal tumor of the cerebrum is a recently reported benign,
mixed glial neuronal lesion that is included in the 2016 updated World Health Organization …

Recognizing autoimmune-mediated encephalitis in the differential diagnosis of limbic disorders

AJ Da Rocha, RH Nunes, ACM Maia… - American Journal of …, 2015 - Am Soc Neuroradiology
Limbic encephalitis is far more common than previously thought. It is not always associated
with cancer, and it is potentially treatable. Autoantibodies against various neuronal cell …

Signal intensity change on unenhanced T1-weighted images in dentate nucleus following gadobenate dimeglumine in patients with and without previous multiple …

…, RC Semelka, M AlObaidy, M Ramalho, RH Nunes… - European …, 2016 - Springer
Objectives To evaluate the impact of previous administration of gadodiamide and neural
tissue gadolinium deposition in patients who received gadobenate dimeglumine. Methods Our …

Arterial spin labeling: techniques, clinical applications, and interpretation

…, SS Omar, FA Scortegagna, K Nael, RH Nunes… - Radiographics, 2022 - pubs.rsna.org
Arterial spin labeling (ASL) is an emerging noninvasive MRI technique for assessing cerebral
perfusion. An important advantage of ASL perfusion is the lack of a requirement for an …

T1 signal-intensity increase in the dentate nucleus after multiple exposures to gadodiamide: intraindividual comparison between 2 commonly used sequences

…, M Ramalho, M AlObaidy, RH Nunes… - American Journal …, 2016 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Different T1-weighted sequences have been used for
qualitative and quantitative evaluation of T1 signal intensity related to gadolinium deposition in …