BME Monday ROUNDTABLE

JUNE 12, 2023

 

 

UPCOMING IMPORTANT DATES

 

Week of June 12

 

Wed., June 14: BME Summer Seminar Series, 9:30 a.m. via Zoom. Luis Sanjuan (Pavlos Vlachos, advisor) will present “RiNCE: A Particle Image Velocimetry Approach for Nanoparticle Characterization” and Elnaz Ghajar-Rahimi (Craig Goergen, advisor) will present “A Novel Echocardiography Feature-Tracking Algorithm for Automated Aortic Root Diameter Measurements in Pediatric Aortopathy.”

 

 

Upcoming Opportunity for Fun!

 

Do you play a band instrument? Purdue Bands and Orchestras has just opened registration for the 2023 Purdue University Summer Band! This ensemble is open to all area musicians that are high school age and up. Participation in Purdue’s Summer Band is FREE to all. We plan to begin rehearsals on Tuesday, June 20, and rehearse on Tuesday and Thursday afternoons from 4:00-5:30 PM in Hagle Hall, Room 178. Our concert will be held on Thursday, July 20, 6:30 PM at Columbian Park Memorial Island Amphitheater immediately prior to a performance by the Lafayette Citizens' Band.

Register Here: https://docs.google.com/forms/d/e/1FAIpQLSd8v47EEuzyl070XPk4QyH0fIBflpdLywlCfrGKLKZTtr4Stw/viewform

 

Upcoming important deadlines and info.

 

Wed., Sept. 6:  BMES Early Bird Registration Deadline! Register now to lock in savings with early-bird pricing for the 2023 BMES Annual Meeting (to be held in Seattle, WA, October 11-14). Thousands of biomedical engineers will attend this year’s meeting to learn, collaborate, and network. As a BMES member, you can save more than 10% with reduced early bird rates, so if you’re not already a member, now would be a good time to join! Click here for details: https://mailchi.mp/e3958bb463f2/o8cvhb9q5x-9335625?e=ea10e317a2

NOTE:  We recommend booking your room at the Hyatt Regency Seattle because it’s closer to the convention center AND it’s where university receptions will be held (in addition to some being held inside the convention center).  Here’s the link to reserve with the $259 discount rate.  This rate only lasts until the allotted number of rooms have been sold. https://www.hyatt.com/en-US/group-booking/SEARS/G-BMES

 

Mon., July 24: Final Grade Entry Begins. (Ends promptly at 5:00 p.m., Tues., August 8th).

 

Committee Updates

 

Academic Programs Update

 

Summer Grading Deadlines:

 

  1. Final Grading windows are found here:
    1. Full 12-week summer session (includes all undergrad and grad-level research students)
      1. Grade entry begins at 8 a.m. Monday July 24th and ends promptly at 5 p.m. Tuesday August 8th.
  2. Guidance on Final grading
  3. Now is the perfect time for faculty to take the 15 minutes to get all your required certifications up to date BEFORE the deadline approaches.
      1. FERPA
      2. GLBA
      3. Data Handling
      4. Protecting SSNs
  4. This page provides myPurdue grade entry instructions.
  5. This page provides BrightSpace final grade submission instructions.
    1. Those not making the deadline must use the Grade Change Workflow to submit a grade for each student.
      1. Instructions may be found here.

 

Graduate Office Update

 

The Purdue Office of Engagement is sponsoring an ”Advancing Graduate Research Impact in Society Professional Development Program for Future Engaged-Scholars.” The purpose of the Advancing Graduate Research Impact in Society certification program is to foster the development of engaged scholarship. This professional development program will help increase knowledge, skills, and experience translating your research in ways that help solve societal problems. The program is open is any graduate student or post-doctoral fellow enrolled at Purdue’s West Lafayette campus. Participants will meet weekly to learn how to become engaged scholars, develop community partnerships, engage with diverse communities, evaluate engagement activities, and communicate your engaged work.

Location:  Purdue Grad Student Center, Northwestern Avenue, Room 105

Day & Time: Tuesdays 3:00-4:00 p.m., Fall 2023 Semester. (All sessions are in person)

Registration required:  Open from May 18 to June 16.

If you are interested in learning more or registering, please scan the UR code:

 

Resources and further information

 

BME Summer Seminar Series, Wed., June 14, 9:30 a.m. via Zoom. Luis Sanjuan (Pavlos Vlachos, advisor) will present “RiNCE: A Particle Image Velocimetry Approach for Nanoparticle Characterization” and Elnaz Ghajar-Rahimi (Craig Goergen, advisor) will present “A Novel Echocardiography Feature-Tracking Algorithm for Automated Aortic Root Diameter Measurements in Pediatric Aortopathy.”

“RiNCE: A Particle Image Velocimetry Approach for Nanoparticle Characterization”

Abstract: Nanoparticle characterization plays a crucial role in understanding material properties and their possible modifications. Traditional techniques like dynamic light scattering, small-angle X-ray scattering, and fluorescence correlation microscopy are commonly employed to measure properties such as size and diffusion coefficient. However, these methods have limitations in resolution and sensitivity to experimental conditions. In this study, we propose a modified particle image velocimetry (PIV) approach called image-based probability estimation of displacement (iPED) for more accurate and repeatable measurements. iPED demonstrates enhanced accuracy and robustness in estimating the diffusion coefficients of nanoparticles ranging from 200 nm to 1000 nm, without assumptions on particle behavior and shape. Nonetheless, iPED faces limitations when characterizing nanoparticles below 200 nm due to low signal-to-noise ratio (SNR). To address this, we introduce a revised algorithm incorporating robust phase correlation to improve SNR and reduce error in the diffusion coefficient measurements. Monte Carlo analyses reveal a strong statistical correlation between the diffusion coefficient values and various phase plane properties across different SNR levels of synthetic images. These results indicate promising potential for enhancing accuracy and robustness in iPED measurements, which can be extended to other characterization parameters beyond diffusion coefficient. Further investigations are warranted to explore the full capabilities of this improved approach.

Evaluation link for Luis Sanjuan: https://purdue.ca1.qualtrics.com/jfe/form/SV_0SXPXdqmRvRFg2y

“A Novel Echocardiography Feature-Tracking Algorithm for Automated Aortic Root Diameter Measurements in Pediatric Aortopathy”

Abstract: Transthoracic echocardiography is crucial for diagnosing and monitoring aortic root dilation in patients at risk for aortic dissection and rupture (e.g., Marfan syndrome, bicuspid aortic valve) [1]. Maximum aortic root diameters measured from parasternal long axis (PSLAX) images help classify the severity of aortic root dilation relative to healthy controls, informing pharmacological and/or surgical treatment strategies. However, aortic diameter remains an incomplete characterization of disease status and even small errors in diameter measurements can influence clinical care decisions [2]. Here, we present a novel feature-tracking algorithm that utilizes goodness-of-fit weighting to automatically stabilize PSLAX images, quantify aortic root size, and estimate parameters previously unattainable via standard clinical methods. When compared to standard of care techniques, the algorithm-derived aortic root diameters were highly correlated (r2> 0.96) to measurements made by a board-certified cardiologist. The algorithm stabilized aortic root translation and tracked anterior and posterior surfaces of the aortic root, which allowed for estimation of aortic root behavior between systole and diastole in Marfan Syndrome patients and control patients with no cardiac disease. This novel approach provides a holistic definition of aortic geometry and paves the way for more comprehensively describing aortic root properties. We anticipate that expansion of this algorithm to include additional biomechanical analyses and its application in a larger cohorts of patients will bolster our understanding of vessel wall dynamics and the pathologies underlying pediatric aortopathy.

Evaluation link for Elnaz Ghajar-Rahimi: https://purdue.ca1.qualtrics.com/jfe/form/SV_cOqtyvOFetlLIuq

*Join Zoom Meeting

https://purdue-edu.zoom.us/j/98231659969?pwd=T21Oa1B6QzFyQzFvckMzS1doNGlJUT09

Meeting ID: 982 3165 9969    Passcode: biomedical

 

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