Medical Summarization Q4 0 GGUF

🚀 MRI Usage in Patients with Implanted Subcutaneous Implantable Cardioverter - Defibrillators

This project focuses on a single - centre prospective non - controlled study about the first use of MRI in patients with an implanted totally subcutaneous implantable cardioverter - defibrillator (s - ICD). It provides valuable insights into the safety and potential issues of using MRI with s - ICD systems.

🚀 Quick Start

The need for MRI in patients with implanted pacemakers or ICDs is a growing clinical concern. While most such devices are contraindicated for MRI use, this study explores the use of MRI in patients with s - ICDs, which currently lack MRI certification.

📚 Documentation

Background

The demand for MRI in patients with implanted cardiac devices like pacemakers or ICDs is increasing. It's estimated that up to 75% of active cardiac device recipients will need an MRI. However, most existing devices are not suitable for MRI due to potential hazards such as electrode heating, myocardial damage, and device malfunction.

Study Design

• Patients: 15 patients with implanted s - ICD systems (Boston Scientific SqRx model 1010 and Q - trak model 3010) were enrolled over 18 months. Newly implanted s - ICD patients (< 6 weeks) and those with intravascular leads were excluded.
• Scanning: Patients were randomized for cardiac, brain, cervical, or lumbar spinal scans. One patient also had a knee examination. A Siemens Avanto 1.5 T MRI scanner was used in normal operating mode with a 2 W/kg whole - body averaged specific absorption rate (SAR).

Results

• Heating: Some patients reported heating sensations, mainly during lumbar scans with a thermistor probe. In cases of intolerable heating, the scan was either halted or the sequence was modified.
• Device Function: The s - ICD system parameters remained unchanged before and after the MRI. No anomalies were noted via pulse oximetry or ECG during the scans.
• Skin Lesion: One patient had a skin lesion over the s - ICD can, which healed after 10 days.

Conclusion

Although the s - ICD system is not MRI - certified, this study shows that with proper precautions such as patient education, temperature monitoring, and sequence modification, MRI can be used in patients with s - ICDs. However, further research is needed to fully understand the long - term effects and safety.

📄 License

This project is licensed under the Apache - 2.0 license.