1. MRI/X-ray Transport Table for Transarterial Chemoembolization
Team Leader – Benjamin Engel
Communicator – Eric Printz
BWIG – Ryan Carroll
BSAC – Justin Schmidt
Client – Dr. Wally Block, Ph.D
Departments of Biomedical Engineering & Medical Physics
Advisor – Dr. Bill Murphy, Ph.D
Department of Biomedical Engineering

2. Overview Project Motivation Semester 1 Accomplishments
New Problem Statement
Project Requirements
Design Options
Project Verificiation
Future Work

3. Research Motivation/Background

4. Last Semester – Liver Phantom
Developed catheter compatible liver phantom
MRI compatible
8 Couinaud segments of liver
Fully compatible with lab’s current pump
Can be used to practice catheter guidance with MRI

5. Current Semester– New Problem Statement
Our goal: Create an MR/X-Ray subject transport table
Animal Study Procedure
Position pig in custom made MRI coil
Insert catheter into specific liver segment (MRI guidance)
Transport animal, in the coil, to adjacent x-ray room
Verify position of catheter with traditional x-ray method
Study Goals:
Validate MRI guidance
Physician procedure training

6. Transport Table Specifications
MRI compatible
Material: attenuation < PVC coil
Compatible with MRI/X-ray tables
MRI coil must be held securely during imaging and transport
Maneuverable by two people
Support weight of the coil plus 60 kg specimen

7. Spatial Constraints MRI bore/couch creates all spatial constraints
16.9”
23.5”
15.5”
.6”
MRI bore/couch creates all spatial constraints
X-ray has no limiting dimensions
14” O.D. coil
Can only contact moving portion of couch
Max width 15.5”

8. Design Options
Construct device with rounded bottom and use adapter on X-Ray table
Construct device with flat bottom, and use adapter on MR table

9. Round Bottom Design Rounded base of device fits MRI table curvature
Adapter used to fit device to flat X-Ray table
Rounded coil brackets
Handles for use during transport
Coil is bolted to device to hold in place

10. Flat Bottom Design Flat bottom rests on flat x-ray table
Rounded supports fit MRI table curvature and support device
Simple rails replace coil brackets
Strap replaces bolt to hold coil in place
Handles for use during transport

11. Transport Table Verification
Test transfer using phantom (without coil)
Verify table supports weight
Verify researcher comfort
Test transfer with coil (no animal)
Test image & transfer with animal
Insert catheter in specific Couinaud segment
Transfer animal off of x-ray table, and back on
Verify that catheter position

12. Future Work Assemble prototype (2 weeks)
Begin transport table verification (phantom)
Reserve time in imaging suite to test transfers in scan rooms
Work with client to begin animal testing with device

13. Questions?

14. References Block, WF. 3D Real-Time MRI Imaging Grant. PHS 398/2590.
Vigen KK, Peters DC, Grist TM, Block WF, Mistretta CA. Undersampled projection reconstruction imaging for time-resolved contrast-enhanced imaging. Magnetic Resonance in Medicine. 2000;43:
Longmire WP, Tompkins RK, Manual of Liver Surgery, Springer-Verlag, 1981
Shelley Medical Imaging Technologies. Rigid Abdominal Aorta Product Details. Product Number: A-R-N-001.
X-Ray Angiograph.
Liver Model. Mevis-Distant Services.

15. Phantom Images & Testing
Video:
Phantom Images & Testing