-
-
Skip navigation
(Access key: S).
Contact information.
Magnetic resonance imaging can be used to study pulmonary blood flow in hypertensive patients before and after exercise. The goal of this project is to create a device which will be used to exercise subjects to 40% of a predetermined maximal workload in both healthy subjects and patients with hypertension. A preliminary cycling device was constructed and tested via Doppler Ultrasound and found to increase the pulmonary systolic pressure an average of 5.54 mmHg. This pressure increase was determined using the modified Bernoulli equation with the tricuspid regurgitant velocity. Future work entails doing MRI testing and building a final device that is milled out of solid sheets of HDPE.
From Left to Right:
Colleen Farrell, Val Maharaj, Amy Lenz, Deborah Yagow
We have built our prototype and have successfully tested it with ultrasound. Future work entails doing MRI testing and building a final device that is milled out of solid sheets of HDPE.
| Week | Reporting Period Beginning | Activities |
|---|---|---|
| 1 | September 4 | Contacted client, met with advisor, and did brief research on topic |
| 2 | September 11 | Met with client and radiologists, and formulated a preliminary PDS. Also did more research. |
| 3 | September 18 | Finished Biosafety Learn@UW quizzes, looked at existing device, design research |
| 4 | September 25 | This week we tested ourselves to see what types of exercise would produce the greatest increase in blood pressure and heart rate. |
| 5 | October 2 | We orders some preliminary devices, and started our presentation and design alternatives. |
| 6 | October 9 | We were able to view a MRI scan demonstration, talk to a professor of kinesiology about exercise, and finalize our presentation. |
| 7 | October 16 | Finished our midsemester deliverables: presentation, report, notebooks. |
| 8 | October 23 | Met with Kreg Gruben and James Runo, did some exercise testing, and researched materials. |
| 9 | October 30 | Became trained to use COE Student Workshop, but not completed yet. Bought some parts for our gear system. |
| 10 | November 6 | We received our timing belt and timing pulleys to start prototyping with. Also determined that Val and Deb have good tricuspid regurgitant jets to image. |
| 11 | November 13 | We bought a lot of parts and received free samples from a ME grad student and began construction. |
| 12 | November 20 | Finished the bulk of construction of our prototype and did preliminary testing with ultrasound. We also collectively gained 38 pounds from pumpkin pie. |
| 13 | November 27 | We finished our last testing and construction on the prototype and practice our presentation with the final poster. |
| 14 | December 4 | Presentation went very well. Final construction of miscellaneous parts was completed, and our final paper was written up. |
| 15 | December 11 | First MR scan did not go as well as planned. Design will have to be modified slightly before next scan. |
 |
Mid-Semester Presentation (Oct 15 2009, 5119 kb) |
 |
Final Poster (Dec 4 2009, 1175 kb) |
|
Final Paper (Dec 10 2009, 1273 kb) |
|
Product Design Specifications (Dec 10 2009, 73 kb) |
