Key words:
1.5T MRI Shielded Room
1. Project Overview
This project covers the RF shielding and interior renovation of a 1.5T superconducting MRI room in a hospital. The construction scope includes the magnet room (examination room), control room decoration, RF shielding works, ground treatment, wall and ceiling finishing, non-magnetic accessory installation, noise reduction, moisture-proof treatment and joint finishing.
Key Technical Indicators: Shielding effectiveness ≥80dB at 100MHz. The entire room adopts non-magnetic structure without ferromagnetic fittings, complying with hospital infection control standards and equipment acceptance specifications.
2. Construction Preparation
- Conduct on-site recheck of room dimensions, structural load capacity, elevation and water & electrical points. Verify the drawings of equipment foundation and shielding structure to confirm the civil base meets construction requirements.
- All incoming materials shall be medical non-magnetic products. Ordinary iron and ferromagnetic materials are strictly prohibited. Material inspection and application for approval shall be completed in advance.
- Divide independent construction zones for shielding works, decoration and accessory installation to arrange cross operation properly. Take measures for finished product protection, dust control, noise reduction and safety management.
- Organize technical disclosure for construction personnel, specifying key process standards for RF shielding welding, joint sealing and non-magnetic installation.
3. Key Construction Procedures
3.1 Base and Floor Construction
- Level and compact the ground base. Construct double-layer moisture-proof and waterproof layers with sufficient upturned height on walls to prevent moisture damage to equipment.
- Carry out precise leveling and reinforcement on the equipment base to meet the load-bearing and shock absorption requirements of the 1.5T MRI system.
- Lay medical non-magnetic anti-static flooring on the surface with seamless joints. The flooring is resistant to disinfectant and easy to clean, meeting medical cleanliness requirements.
3.2 RF Shielding Works (Core Procedure)
- Construct a closed hexahedral RF shielding enclosure with high-quality shielding plates by full welding. Ensure flat panels with continuous, full welds without cold solder joints or missing welds.
- Form an integral closed shielding body for walls, ceiling and floor with tightly overlapped seams to guarantee structural integrity.
- Install RF shielding doors and observation windows with tightly fitted knife-edge joints and qualified overlapping shielding size.
- Seal all pipeline openings with waveguide windows and radiofrequency filters to eliminate electromagnetic leakage and maintain overall shielding performance.
3.3 Wall and Ceiling Decoration
- Assemble medical antibacterial non-magnetic color steel plates / 304 non-magnetic stainless steel panels on walls. The panels are tightly jointed, resistant to medical disinfectant and meet hospital infection control requirements.
- Install lightweight non-magnetic ceiling boards filled with flame-retardant sound-absorbing materials to reduce operational noise from gradient coils and achieve a quiet environment.
- All trim strips, fixing screws and hardware fittings must be non-magnetic special parts to avoid image artifacts and safety risks caused by ferromagnetic metals.
3.4 Auxiliary Installation Works
- Adopt medical non-magnetic lamps, sockets, switches and junction boxes with standardized layout and wiring.
- Modify ventilation and air conditioning outlets to match the shielding structure, ensuring air circulation without breaking the shielding integrity.
- Complete noise reduction, dust-proof and finishing works to create a neat space in line with medical construction standards.
4. Quality Control Measures
- Non-magnetic Material Control: Ferromagnetic substances are strictly forbidden throughout construction. All plates, fittings and hardware shall be dedicated non-magnetic products to avoid magnetic field interference and image artifacts.
- Shielding Integrity: Strictly control weak points including weld seams, door & window joints and pipeline openings to eliminate electromagnetic leakage and meet shielding performance standards.
- Construction Quality: Ensure flat panels, uniform seams and tight joints. The moisture-proof, noise reduction and shock absorption performance shall satisfy long-term equipment operation.
- Compliance: The whole project shall comply with radiology room construction codes, hospital infection control regulations and site requirements issued by the MRI equipment manufacturer.
5. Acceptance Criteria
- The shielding effectiveness test result shall reach ≥80dB at 100MHz with no electromagnetic leakage.
- The whole room shall be fully non-magnetic without exposed iron components or ferromagnetic fittings.
- Walls, floors and ceilings shall be smooth and clean with qualified waterproofing, noise reduction and dust-proof performance for long-term medical use.
- All shielding joints, doors, windows and pipeline seals shall pass inspection. Complete technical documents shall be prepared for equipment entry and hospital acceptance.
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WhatsApp：+86 17763527199
Copyright: Shandong Hongxinyu Medical Technology Co., Ltd.
Factory: Liaocheng Economic and Technological Development Zone, Shandong Province, Liaohe Road and Yanshan Road intersection 50 meters south of the road east
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