Guilherme Hohgraefe Neto

Department of Radiology, Hospital CUF Cascais, Rua Fernão Lopes, 60, 2750-663, Cascais, Portugal.

3 publications 2009 – 2025 ORCID

What does Guilherme Hohgraefe Neto research?

Dr. Hohgraefe Neto studies the safety and best practices related to the use of gadolinium in magnetic resonance imaging (MRI). Gadolinium is a contrast dye used to enhance the clarity of images during scans. His research highlights concerns about gadolinium accumulation in the body and brain, primarily addressing the practices of radiologists when using this chemical. He advocates for the use of macrocyclic gadolinium agents, which are considered safer, and emphasizes the need for careful dosage to protect patients, especially vulnerable groups like pregnant women.

Key findings

  • Experts agreed that serious kidney problems from gadolinium are rare, but recommended reductions in dosage to lessen build-up in the body.
  • Doctors preferred using macrocyclic gadoilium agents over older types due to their perceived safety.
  • Most radiologists felt that additional training is necessary to better understand the risks associated with gadolinium.

Frequently asked questions

Does Dr. Hohgraefe Neto study MRI safety?
Yes, he focuses on the safe use of gadolinium in magnetic resonance imaging.
What recommendations has Dr. Hohgraefe Neto made regarding gadolinium use?
He recommends using certain types of gadolinium and smaller doses to minimize health risks.
Is Dr. Hohgraefe Neto's work relevant for pregnant patients?
Yes, his research highlights concerns about gadolinium use in pregnant patients and emphasizes the need for caution.

Publications in plain English

Review of the updated definitions and concepts of spinal lesions in axial spondyloarthritis.

2025

Skeletal radiology

Massignan Â, Knabben MM, da Silva TB, Hohgraefe Neto G

Plain English
This research paper examined the latest definitions and findings related to spinal lesions in people with axial spondyloarthritis, a type of inflammatory arthritis affecting the spine. The updated guidelines from May 2022 help doctors better identify and understand these lesions using MRI, which can also show how active the disease is. This is important because it improves how healthcare providers can diagnose and monitor the condition over time, leading to better patient outcomes. Who this helps: Patients with axial spondyloarthritis.

PubMed

Practical recommendations for the safe use of gadolinium in magnetic resonance imaging: a Delphi expert panel study.

2020

Radiologia brasileira

Baroni RH, Bauab T, Bittencourt LK, D'Ippolito G, Goldman SM +5 more

Plain English
Doctors who perform MRI scans use gadolinium contrast dye to get better images, but experts were concerned that this dye might accumulate in the brain and body over time. This study surveyed 10 experienced radiologists in Brazil about their practices with different types of gadolinium dyes to figure out the safest way to use them. The experts agreed that gadolinium is safe for acute reactions and serious kidney problems are rare, but they preferred using certain types of gadolinium (macrocyclic agents) over others and recommended using smaller doses to reduce the buildup in the body. Most experts also agreed not to use it in pregnant patients. The main takeaway is that doctors need better training to understand gadolinium risks so they use only the amount necessary and choose the safest types available.

PubMed

A Web-based survey on students' conceptions of 'accident'.

2009

Informatics for health & social care

Blank D, Hohgraefe Neto G, Grando E, Siqueira PZ, Lunkes RP +3 more

Plain English
This study investigated how Brazilian university students understand the concept of an "accident" through an online survey. Researchers found that 85% of respondents viewed accidents as preventable, while 50% believed they could be anticipated. The findings are significant because they highlight students' perceptions of accidents and can help inform education and prevention strategies for injury-related events. Who this helps: This benefits students, educators, and policymakers focused on injury prevention and safety education.

PubMed

Publication data sourced from PubMed . Plain-English summaries generated by AI. Not medical advice.