1 / 5

Hari Prashanth

Hari Prashanth. Research Advisors: Dr.Gregory Auner Dr.Mark Haacke. Background. Under Grad :Electronics with specialization in: Bio-instrumentation, Micro processors and micro controllers, sensors and electronic devices Masters: Electrical engineering

urvi
Download Presentation

Hari Prashanth

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Hari Prashanth Research Advisors: Dr.Gregory Auner Dr.Mark Haacke

  2. Background • Under Grad :Electronics with specialization in: • Bio-instrumentation, Micro processors and micro controllers, sensors and electronic devices • Masters: Electrical engineering • Image and signal processing, Magnetic resonance imaging • Research Interest: Flow imaging and quantification techniques • Project involved: To quantify velocity in a –U- tube and track the path of Escherichia coli (E-coli) bacteria in water flowing in the –U- tube

  3. 42 in Inlet Outlet • Use of Phase contrast MRA to quantify velocity through the –U-tube • Mean percent error for the measured flow rates was found to 4.35% at the Inlet and 5.18% at the Outlet • Effects of acceleration seen at the outlet Flow phantom Phase map

  4. Echo time 5ms Reference image Bead concentration-120microlitre • Miniscule particles (polystyrene beads) of the same size of bacteria were used as a means to mimic the effect of bacteria • Susceptibility effects of the beads causes rapid signal loss (dephasing effect) • For a concentration of 120microlitre beads the SNR dropped by 54% at echo time 5ms in the stationery frame

  5. Next step.. • Use of True FISP sequence to take snap shots of the entire phantom (coronally) with a temporal resolution of about 780ms-1.5s per frame after injecting the beads • Short term Career goal: • To gain more knowledge and hone my skills in the field of MRI with respect to fast flow imaging techniques and Image and signal processing domain, either industrially or academically

More Related