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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
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Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

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Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
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Patient-centered care involves delivering care beyond inpatient hospitalization. Reflective practice can enhance a patient-centered approach. Reflective practice is a process of reasoning that considers all aspects of the present situation, including practicalities, learning from personal practice, and consideration of patient needs. Patients appreciate care decisions made while considering their input. Involving the patient in their care provides the patient with a sense of contribution rather...
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Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
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In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...
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Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
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Whole-body PET/MRI of Pediatric Patients: The Details That Matter
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Should patients with brain implants undergo MRI?

Johannes B Erhardt1, Erwin Fuhrer, Oliver G Gruschke

  • 1Department of Microsystems Engineering-IMTEK, University of Freiburg, Freiburg, Germany. BrainLinks-BrainTools, Freiburg, Germany.

Journal of Neural Engineering
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This summary is machine-generated.

Neural implants aid patients with degenerative diseases, but MRI scans pose risks. Current safety measures are insufficient, necessitating improved engineering solutions for safe magnetic resonance imaging in all implant recipients.

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Area of Science:

  • Biomedical Engineering
  • Medical Physics
  • Neuroscience

Background:

  • Neural implants are increasingly used to manage neurodegenerative diseases, requiring Magnetic Resonance Imaging (MRI) for monitoring.
  • Interactions between MRI environments and neural implants present significant patient safety risks.
  • Existing safety protocols for MRI in patients with cochlear implants and deep brain stimulation (DBS) devices are inconsistent and sometimes inadequate.

Purpose of the Study:

  • To review the literature on neural implant safety in MRI from an engineering perspective.
  • To raise awareness about the risks associated with MRI for patients with neural implants.
  • To propose strategies for improving the safety and utility of MRI procedures for implant recipients.

Main Methods:

  • Literature review focusing on engineering aspects of neural implant interactions with MRI.
  • Analysis of safety data and reported adverse events for cochlear and DBS implants.
  • Explanation of fundamental physical phenomena causing harm during MRI.

Main Results:

  • Despite extensive research, a universally safe MRI procedure for all neural implant recipients has not been achieved.
  • Inconsistent safety practices exist, with some cochlear implant patients excluded from MRI and some DBS centers exceeding safety limits.
  • Past incidents of permanent neurological damage in DBS recipients highlight the dangers of exceeding manufacturer recommendations.

Conclusions:

  • Current approaches to neural implant safety in MRI are insufficient, necessitating urgent improvements.
  • Engineering solutions are crucial to ensure that neural implants are not contraindicated for MRI examinations.
  • Future strategies must prioritize patient safety while enabling necessary diagnostic and monitoring procedures like MRI.