FINAL DRAFT 9/28/95
Magnetic Resonance Imaging
Narrative
4. Exhaust System
The department's plumbing fixtures and
drains should be drained by gravity
Provide a dedicated exhaust system to
through soil, waste, and vent stacks. In
emergency
exhaust
the
cryogen
addition, the department's special waste
discharge into the room. The fan shall be
should be drained through corrosion-
activated via an oxygen sensor located
resistant, flame- retardant piping into
inside the MRI Gantry Room.
either a local or centralized acid dilution
tank.
5. Seismic
2. Medical Gas Systems
Where required, install the HVAC
systems with seismic provisions as
The department's medical gas outlets
outlined in the VA HVAC Design Manual
are shown to establish a base for the
for Hospital Projects.
design guide and its use in planning. The
engineers/designers shall verify the
Refer to VA Construction Standard
medical gas location and quantities for
Handbook PG-18-03 (CD-54), "Natural
individual projects.
Disaster
Resistive
Design
Non-
Structural" for additional information.
All equipment shall be non-magnetic.
6. Noise Level
3. Seismic
Select HVAC equipment, ductwork and
Where required, the plumbing and
air distribution devices to achieve noise
medical gas systems should be installed
levels listed in the VA HVAC Design
with seismic provisions, as outlined in the
Manual for Hospital Projects.
VA Plumbing Design Manual for Hospital
Projects.
D. Plumbing
Refer to VA Handbook H-18-03 (CD-54),
"Natural Disaster Resistive Design Non-
1. Water and Waste Systems
Structural" for additional information.
The plumbing systems should be
4. Fire Protection
provided to satisfy the departmental
plumbing needs.
The recommended fire protection for the
MRI Gantry and Computer Equipment
The department's domestic cold water
Rooms are either preaction or dry pipe
should be piped to all plumbing fixtures
systems in lieu of the standard wet
and equipment requiring this utility. A hot
system.
water return system should be provided
to ensure the design temperature at the
farthestoutlet.
VA DESIGN GUIDE
MAGNETIC RESONANCE IMAGING
PAGE 2-8
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