[Modern mid-field magnetic resonance imaging in private practice : Field report]

Area of Science:

• Medical Imaging Technology
• Radiology

Background:

• Introduction of the 0.55 Tesla (T) "Free.Max" magnetic resonance imaging (MRI) scanner in the mid-field sector.
• Utilizes new technologies, artificial intelligence (AI), and a novel coil concept to address limitations of lower field strength and a wide 80 cm examination tunnel.

Purpose of the Study:

• Initial assessment of the 0.55 T scanner's suitability for private practice.
• Evaluation of measurement parameters, examination protocols, and image quality against established requirements.

Main Methods:

• Conducted approximately 2020 examinations using the Free.Max scanner.
• Performed comparative analyses on 20% of patients, contrasting Free.Max scans with those from five different 1.5 T scanners using similar protocols.

Main Results:

• The 0.55 T MRI device demonstrates potential to meet radiologists' quality standards for diagnostic safety.
• While signal-to-noise ratio is lower than high-field scanners, it is sufficient for diagnosis; motion artifact susceptibility is higher, but metal artifact susceptibility is lower.
• Patients reported comfort due to flexible coils and the 80 cm wide bore.

Conclusions:

• The 0.55 T scanner may partially substitute high-field MRI in private practices.
• Profitability hinges on cost-effectiveness versus high-field scanners, considering current longer acquisition times impacting examination frequency.
• Anticipation of further advancements in mid-field MRI technology.