Tag: BME

Stories about Biomedical Engineering.

Hoda Hatoum: How Can You Mend a Broken Heart? Flow Dynamics in Arrhythmias

Dr. Hatoum and PhD student Brennan Vogl test heart valves for overall performance and energetics, turbulence generated, sinus hemodynamics (aortic and pulmonic), as well as ventricular, atrial, pulmonic, and aortic flows.

Hoda Hatoum shares her knowledge on Husky Bites, a free, interactive webinar this Monday, 2/14 at 6 pm. Learn something new in just 30 minutes or so, with time after for Q&A! Get the full scoop and register at mtu.edu/huskybites.

Dr. Hoda Hatoum

What are you doing for supper this Monday night 2/14 at 6 ET? Grab a bite with Dean Janet Callahan and Hoda Hatoum, assistant professor of Biomedical Engineering at Michigan Tech. She’ll talk about her cardiovascular research along with Brennan Vogl, one of the first PhD students to join her Biofluids Lab in the fall of 2020.

Atrial fibrillation (aka AF or AFib), when the heart beats in an irregular way, affects up to 6 million individuals in the US, a number expected to double by 2030. More than 454,000 hospitalizations with AFib as the primary diagnosis happen each year. Current AF treatment guidelines recommend antiarrhythmic drugs as initial therapy, but their efficacy is limited and comes with the risk of serious adverse effects. Another option, catheter ablation, electrically isolates the pulmonary veins—the most frequent site of AFib triggers—with more success and an excellent safety profile.

Brennan Vogl

“One of my goals in the lab is to evaluate and provide answers to clinicians so they know what therapy suits their patients best,” says Hatoum. During Husky Bites, by way of example, she’ll show us just how AFib ablation impacts the heart’s left atrial flow.

The left atrium is one of the four chambers of the heart, located in the heart’s upper half. It receives oxygenated blood from the lungs, and pumps it down to the left ventricle through the mitral valve. The left ventricle then pumps the oxygen-rich blood to the rest of the body through the aortic valve.

An actual human heart is about the size of your fist, shaped like an upside down pear. Every cell in your body gets blood from your heart (except for your corneas).

Hatoum’s research seeks to better understand flow dynamics of the heart during arrhythmia, as well as the complexity of structural heart biomechanics, prosthetic heart valve engineering, and the structure-function relationships of the heart in both health and disease.  

Hatoum earned her BS in Mechanical Engineering from the American University of Beirut and her PhD in Mechanical Engineering from the Ohio State University (OSU). She was awarded an American Heart Association postdoctoral fellowship, and completed her postdoctoral training at the Ohio State University and at Georgia Institute of Technology before joining the faculty at Michigan Tech.

“One of my goals is to evaluate and provide answers to clinicians so they know what therapy suits their patients best.”

Hoda Hatoum

Why hearts? “It all started with my doctoral program,” Hatoum recalls. “I had the opportunity to work closely with clinicians, to attend their structural heart meetings, and to plan with them the appropriate therapy to be administered for patients. Every patient is very different, which makes the problem exciting and challenging at the same time.”

Now, working in her own Biofluids Lab at Michigan Tech, Hatoum integrates principles of fluid mechanics, clinical expertise with collaborators nationwide (including Mayo Clinic, Ohio State, Vanderbilt, Piedmont Hospital and St. Paul’s Hospital Vancouver), and design and manufacturing–all to find solutions for cardiovascular flow problems. 

Play Biomedical Engineering Biofluids Lab Aortic Valve Models video
Preview image for Biomedical Engineering Biofluids Lab Aortic Valve Models video

Biomedical Engineering Biofluids Lab Aortic Valve Models

These aortic valves open and close based via the contraction of a pump, controlled by a LabView program. See more during Husky Bites!

Hatoum designed and built a pulse duplicator system—a heart simulator—that emulates the left heart side of a cardiovascular system. She also uses a particle image velocimetry system that allows her to characterize the flow field in vessels and organs. Hatoum and her team of students use these devices to develop patient-specific cardiovascular models, conducting in vitro tests to assess the performance and flow characteristics of different heart valves. “We use idealized heart chambers or patient-specific ones,” she notes. “We test multiple commercially available prosthetic heart valves—and our in-house made valves, too.”

From the Biofluids Lab website: a wide array of current commercial bioprosthetic transcatheter mitral valves.

Hatoum and her team design their own heart valve devices. “With the rise of minimally invasive surgeries, the clinical field is moving towards transcatheter approaches to replace heart valves, rather than open heart surgery,” she explains. 

“Currently, transcatheter heart valves are made of biological materials, including pig or cow valves, that are prone to degeneration. This can lead to compromised valve performance, and ultimately necessitate another valve replacement.” To solve this problem, Hatoum collaborates with material science experts from different universities in the US and around the world to utilize novel biomaterials that are biocompatible, durable and suitable for cardiovascular applications. 

Which area of research pulls Dr. Hatoum’s heartstrings the most? “Transcatheter aortic heart valves,” she says. (Look closely at this photo to see the closed leaflets of an aortic valve.)

“With the challenges that come with TAVs, and with the low-risk population targeted, I believe this is an urgent field to look into, so we can minimize as much as possible any adverse outcomes, improve valve designs and promote longevity of the device.”

Congenital heart defects in children are another strong focus for Hatoum and her team. “We devise alternatives for highly-invasive surgeries for conditions such as pulmonary atresia, Kawasaki disease, and more.” Hatoum collaborates with multiple institutions to acquire patient data, then, using experimental and computational fluid dynamics, she examines the different scenarios of various surgical design approaches. “One very important goal is to develop predictive models that will help clinicians anticipate adverse outcomes,” she says.

“In some centers in the US and the world, the heart team won’t operate without engineers modeling for them—to visualize the problem, design a solution better, improve therapeutic outcomes, and avoid as much as possible any adverse outcomes.”

Hoda Hatoum
Dr. Hoda Hatoum grew up in Lebanon. She’s a big fan of road trips.

Brennan Vogl was the first student to begin working with Hatoum in the lab when she arrived at Michigan Tech in 2020. “It is a great pleasure to work with Brennan,” says Hatoum. “He is very responsible and focused. He handles multiple projects, both experimental and computational, and excels in all aspects of them. I am proud of the tremendous improvement he keeps showing, and his constant motivation to do even better.”

Dr. Hatoum, how did you first get into engineering? What sparked your interest?

As a high-school student, I got the chance to go on a school trip to several universities and I was fascinated by the projects that mechanical engineering students did. That was what determined my major and what sparked my interest.

Hometown, family?

I was raised in Kab Elias, Bekaa, Lebanon. It’s about 45 kilometers (28 miles) from the Lebanese capital, Beirut. The majority of my family still lives there.

‘My niece took this image from the balcony of our house in Lebanon, located in Kab Elias. It shows the broad landscape and the mountains, and the Lebanese coffee cup that’s basically iconic.”

What do you like to do in your spare time?

I like to watch TV, read stories (thrillers) and go on road trips.

The sun temple in the Haidara ruins near Kab Elias, believed to date back to the Roman era.
A recent snow in Kab Elias (photo taken within the last week).

How can a student request to join your Biofluids lab?

The student experience is an amazing one, and one that is rewarding. When a student first joins the lab, they do not have any idea about the problem. As they get exposed to it, they add their own perspective. I currently work with two PhD students and two undergraduates. Usually, an email with interest in the research that I do is sufficient. Our lab employs both mechanical engineering students and biomedical engineering students because of our focus on mechanics. 

Brennan, how did you first get into engineering? What sparked your interest?

I first got into engineering when I participated in Michigan Tech’s Summer Youth Program (SYP). At SYP I got to explore all of the different engineering fields and participate in various projects for each field. Having this hands-on experience really sparked my interest in engineering.

Hometown, family?

I grew up in Saginaw, Michigan. My family now lives in Florida, so I get to escape the UP cold and visit them in the warm Florida weather.

Brennan loves to ski in Houghton’s plentiful powder, but he’s an even bigger fan of warm, sunny weather.
Poppy is on the left and Milo is on the right.

Pets? Hobbies?

I enjoy skiing, and I have two Boston Terriers—Milo and Poppy. They live with my parents in Florida, I don’t think they would be able to handle the cold here in Houghton, as much as I would enjoy them living with me.

SWE Celebrates Graduating Seniors and Scholarship Recipients

Michigan Tech’s section of the Society of Women Engineers (SWE) celebrated the end of the semester with a banquet sponsored by Oshkosh.

Graduating seniors recognized at the event are:

The section also awarded two $1,000 scholarships to our upper-division students. The scholarships were sponsored by Ruby & Associates Inc. and Deployed Technologies to recognize students for their contributions to the SWE section and the University community.

Scholarship recipients are:

By Gretchen Hein, Society of Women Engineers Advisor.

Tau Beta Pi Inducts 15 New Members at Michigan Tech

Congratulations to our Fall 2021 Tau Beta Pi Initiates! (Not pictured here: Andrew Scott and Dr. Mary Raber)

The College of Engineering recently inducted 14 students and one eminent engineer into the Michigan Tech chapter of Tau Beta Pi.

Tau Beta Pi is a nationally recognized engineering honor society and is the only one that recognizes all engineering professions. Students who join are the top 1/8th of their junior class, top 1/5th of their senior class, or the top 1/5th of graduate students who have completed 50% of their coursework. The society celebrates those who have distinguished scholarship and exemplary character, and members strive to maintain integrity and excellence in engineering.

Fall 2021 Initiates

Undergraduate Students: Dom Bianchi, Mechanical Engineering; Sean Bonner, Civil Engineering; Sam Breuer, Computer & Electrical Engineering; Sophia Brylinski, Materials Science & Engineering; Spencer Crawford, Computer Engineering; Jacqui Foreman, Chemical Engineering; Stephen Gillman, Computer Engineering; Michael Kilmer, Materials Science & Engineering; Emerald Mehler, Chemical Engineering; Ben Stier, Computer Engineering; Alex Stockman, Computer Engineering; and Jordan Zais, Biomedical Engineering

Graduate Students: Tonie Johnson, MS, Biomedical Engineering; and Andrew Scott, MS Electrical & Computer Engineering

Eminent Engineer

Mary Raber is Chair of Michigan Tech’s Department of Engineering Fundamentals

Dr. Mary Raber

Tinu Folayan Welcomed as Write-D Facilitator

Write-D Space

Writing in the Discipline (Write-D) and the Department of Chemical Engineering are pleased to welcome Tinu Folayan as the department’s Write-D facilitator beginning in the spring 2022 semester.

Write-D provides a dedicated time and space for graduate students to get work done and receive support on writing projects within their discipline, such as manuscripts, research proposals, etc. Guest speakers from the department and industry visit to briefly present research, writing and publishing tips.

Current departments and facilitators include:

Write-D is a free program open to all graduate students. If your department is not listed but you would like to participate, contact Write-D coordinator Sarah Isaacson at sisaacso@mtu.edu.

By Sarah Isaacson, Write-D Coordinator.

Fall 2021 Research Seed Grants for Engineering PIs

Michigan Tech campus and Portage waterway in the autumn.

The Vice President for Research Office announces the Fall 2021 Research Excellence Funds (REF) awards. Congratulations to all the principal investigators!

Thanks to the individual REF reviewers and the REF review panelists, as well as the deans and department chairs, for their time spent on this important internal research award process. Awardees in the College of Engineering include:

Research Seed Grants

By Kathy Halvorsen, Associate Vice President for Research Development.

Portage Health Foundation Research Excellence Fund Awards Spring 2021

Trisha Sain
Trisha Sain
Hyeun Joong Yoon
Hyeun Joong Yoon

The Health Research Institute is pleased to announce the Spring 2021 Portage Health Foundation Research Excellence Fund (PHF-REF) awards.

We would like to thank the reviewers, deans, department chairs and applicants for their efforts on this internal award process. The following are the faculty award recipients in engineering programs.

PHF-REF Research Seed Grant (PHF-REF-RS) Recipients

Trisha Sain (ME-EM)  
Hyeun Joong Yoon (BioMed) 

More information about REF awards and the application process can be found on the Research Excellence Fund page.

Tau Beta Pi Honor Society at Michigan Tech initiates 39 new members

Each chapter of Tau Beta Pi has its own bent statue. On campus at Michigan Tech campus it is located between Rekhi Hall and the Van Pelt and Opie Library.

The College of Engineering inducted 38 students and one eminent engineer into the Michigan Tech Michigan Beta chapter of Tau Beta Pi this academic year.

A nationally-recognized engineering honor society, Tau Beta Pi is the only one that recognizes all engineering professions. Members are selected from the top eighth of their junior class, top fifth of their senior class, or the top fifth of graduate students who have completed 50 percent of their coursework.

Tau Beta Pi celebrates those who have distinguished scholarship and exemplary character and members strive to maintain integrity and excellence in engineering. The honor is nationally recognized in both academic and professional settings. Alumni embody the principle of TBP: “Integrity and Excellence in Engineering.”

The new Tau Beta Pi logo in blue, with Tau Beta Pi symbol, "the bent" which resembles an old watch winding key.

Fall 2020 Initiates:

Undergraduate students
Evan DeLosh, Mechanical Engineering
Nolan Pickett, Mechanical Engineering
Ben Holladay, Electrical Engineering
Jacob Stewart, Civil Engineering
Malina Gallmeyer, Environmental Engineering
Caleigh Dunn, Biomedical Engineering
Mikalah Klippenstein, Electrical Engineering
Savannah Page, Biomedical Engineering
Katie Smith, Chemical Engineering
Cole Alpers, Mechanical Engineering
Ben Pokorny, Mechanical Engineering
Kyrie LeMahieu, Mechanical Engineering
Anna Hildebrandt, Materials Science & Engineering

Graduate students
Shankara Varma Ponnurangam, Mechanical Engineering
Koami Soulemane Hayibo, Electrical Engineering
Kaled Bentaher, Chemical Engineering
Nicholas Hendrickson, Mechanical Engineering

Spring 2021 Initiates:

Undergraduate students
Anders Carlson, Mechanical Engineering
Brian Geiger, Mechanical Engineering
Emily Street, Mining Engineering
Jacob Lindhorst, Mechanical Engineering
John Benz, Mechanical Engineering
John Hettinger, Computer Engineering
Joshua King, Materials Science & Engineering
Laurel Schmidt, Mechanical Engineering & Theatre Technology
Matthew Fooy, Chemical Engineering
Matthew Gauthier, Mechanical Engineering
Max Pleyte, Biomedical Engineering
Nick McCole, Engineering
Nick Niemi, Biomedical Engineering
Tom Morrison, Chemical Engineering
Zach Darkowski, Mechanical Engineering

Graduate Students
Aiden Truettner, Chemical Engineering
Iuliia Tcibulnikova, Geological & Mining Engineering & Sciences
Rajat Gadhave, Mechanical Engineering
Ranit Karmakar, Electrical & Computer Engineering
Sreekanth Pengadath, Mechanical Engineering
Fnu Vinay Prakash, Electrical & Computer Engineering

Professor Tony Rogers, Michigan Tech

Eminent Engineer
Dr. Tony Rogers, Department of Chemical Engineering

Award Results for Design Expo 2021

PPE Project

As we’ve come to expect, the judging for Design Expo 2021 was very close, but the official results are in. More than 1,000 students in Enterprise and Senior Design showcased their hard work on April 15 at Michigan Tech’s second-ever, fully virtual Design Expo.

Teams competed for cash awards totaling nearly $4,000. Judges for the event included corporate representatives, community members and Michigan Tech staff and faculty. The College of Engineering and the Pavlis Honors College announced the award winners below on April 15, just after the competition. Congratulations and a huge thanks to all the teams for a very successful Design Expo 2021.

Last but not least, to the distinguished judges who gave their time and talents to help make Design Expo a success, and to the faculty advisors who generously and richly support Enterprise and Senior Design—thank you for your phenomenal dedication to our students.

Please check out the Design Expo booklet and all the team videos.

ENTERPRISE AWARDS

(Based on video submissions)

  • First Place—Husky Game Development (Team 115) Advisor Scott Kuhl, (CC)
  • Second Place—Aerospace Enterprise (Team 106) Advisor L. Brad King, (ME-EM)
  • Third Place—Innovative Global Solutions (Team 116) Advisors Radheshyam Tewari (ME-EM) and Nathan Manser (GMES)
  • Honorable Mention—Consumer Product Manufacturing (Team 111) Advisor Tony Rogers (ChE)

SENIOR DESIGN AWARDS

(Based on video submissions)

  • First Place —Advanced PPE Filtration System (Team 240) Team Members: Matthew Johnson, Electrical Engineering; Bryce Hudson, Mary Repp, Carter Slunick, Mike Stinchcomb, Braeden Anex, Brandon Howard, Josh Albrecht, and Hannah Bekkala, Mechanical Engineering Advised by: Jaclyn Johnson and Aneet Narendranath, Mechanical Engineering-Engineering Mechanics Sponsored by: Stryker
  • Second Place—ITC Cell Signal Measurement Tool (Team 204) Team Members: Reed VandenBerg and Andrew Bratton, Electrical Engineering; Noah Guyette and Ben Kacynski, Computer Engineering Advised by: John Lukowski, Electrical and Computer Engineering Sponsored by: ITC Holdings Corp.
  • Third Place—Development of a Beta Brass Alloy for Co-Extrusion (Team 234) Team Members: Anna Isaacson, Sidney Feige, Lauren Bowling, and Maria Rochow, Materials Science and Engineering Advised by: Paul Sanders, Materials Science and Engineering Sponsored by: College of Engineering
  • Honorable Mention—EPS Ball Nut Degrees of Freedom Optimization (Team 236) Team Members: Brad Halonen, Rocket Hefferan, Luke Pietila, Peadar Richards, and David Rozinka, Mechanical Engineering Advised by: James DeClerck, Mechanical Engineering- Engineering Mechanics Sponsored by: Nexteer
  • Honorable Mention—Electric Tongue Jack Redesign (Team 230) Team Members: Jack Redesign and Brandon Tolsma, Mechanical Engineering; Collin Jandreski, Christian Fallon, Warren Falicki, and Andrew Keskimaki, Electrical Engineering Advised by: Trever Hassell, Electrical and Computer Engineering Sponsored by: Stromberg Carlson
  • Honorable Mention—Bone Access and Bone Analog Characterization (Team 212) Team Members: Sarah Hirsch, Mechanical Engineering; Elisabeth Miller and Christiana Strong, Biomedical Engineering; Morgan Duley, Electrical Engineering; Katelyn Ramthun, Biomedical Engineering Advised by: Hyeun Joong Yoon and Orhan Soykan, Biomedical Engineering Sponsored by: Stryker Interventional Spine Team
  • Honorable Mention—Blubber Only Implantable Satellite Tag Anchoring System (Team 221) Team Members: Quinn Murphy, Lidia Johnson, Joshua Robles, Katy Beesley, and Kyle Pike, Biomedical Engineering Advised by: Bruce Lee, Biomedical Engineering; Sponsored by: NOAA

DESIGN EXPO IMAGE CONTEST

(Based on image submitted by the team)

  • First Place—Blizzard Baja (Team 101): “Our current vehicle, Hornet, after a race.” Credit: Blizzard Baja team member
  • Second Place—WAAM Die Components (Team 237): “MIG welding robot printing a steel part.” Credit: Mike Groeneveld
  • Third Place—Aerospace Enterprise (Team 106): “Team photo, pre-Covid.” Credit: Aerospace Enterprise team member

DESIGN EXPO INNOVATION AWARDS

(Based on application)

  • First Place—Consumer Product Manufacturing Enterprise, Shareable Air project (Team 101) Advised by: Tony Rogers, (ChE)
  • Second Place—ITC Cell Signal Measurement Tool (Team 204) Advised by: John Lukowski (ECE) 
  • Third Place—Hospital Washer Autosampler Implementation (Team 218) Advised by: Sang Yoon Han and Houda Hatoum (BioMed)

DESIGN EXPO PEOPLE’S CHOICE AWARD

(Based on receiving most text-in voting during Design Expo)

ENTERPRISE STUDENT AWARDS

  • Rookie Award—Jack Block, CFO – Supermileage Systems Enterprise
  • Innovative Solutions—Cody Rorick, Alternative Energy Enterprise
  • Outstanding Enterprise Leadership—Andy Lambert, CEO – Supermileage Systems Enterprise and Daniel Prada, Spark Ignition (SI)
  • Team Lead—Clean Snowmobile Enterprise

ENTERPRISE FACULTY/STAFF AWARDS

  • Behind the Scenes Award—Kelly Steelman, Associate Professor and Interim Chair, Dept. of Cognitive and Learning Sciences, nominated by Built World Enterprise.

Engineering Students Recognized in 2021 Undergraduate Research Symposium

Presentation material from Lauren Spahn.

The Pavlis Honors College has announced the winners of the 2021 virtual Undergraduate Research Symposium.

The students who presented this year represented a wide array of scientific and engineering disciplines and highlighted the diversity of research areas explored. Judges from a variety of backgrounds and disciplines volunteered their time to evaluate participant’s posters and video presentations. The results are:

Four students also received Honorable Mention:

Congratulations to all of the winners and honorable mentions and thank you to faculty, staff and students who judged and participated in the Symposium this year.

View the Engineering Research Presentations

Dean’s Teaching Showcase: Smitha Rao

Smitha Rao
Smitha Rao

College of Engineering Dean Janet Callahan has selected Smitha Rao, assistant professor in Biomedical Engineering, as our eighth spring 2021 Deans’ Teaching Showcase member.

Rao was selected for her extensive recruiting and supervision of undergraduates in student research. She has four to five undergraduate students each year that she mentors in her lab. Three of her students have won the Summer Undergraduate Research Fellowship (SURF) Award and she has participated in the Undergraduate Research Internship Program (URIP) six times. Both of these programs run out of the Pavlis Honors College.

Her approach to mentoring in her words is that she wants students to seek and gain a sense of accomplishment and ownership, to develop confidence in their own abilities, and — in the process — contribute to science. She likes to get undergraduates involved in topics that are of interest to them, so their efforts take on a deeper personal meaning. She sees mentoring undergraduate students as an opportunity to train the next generation of engineers while honing her own skills.

The results? Rao’s description of her work speaks for itself: “Out of the 20 plus students that I directly mentored either as an advisor or as an instructor, about 10 are in graduate school. One student from my lab was recently offered a full fellowship to pursue a PhD at a different university. I typically have about four to five undergraduate students each semester. However, this year I have 9 undergrad students (freshman through senior).”

Rao’s mentoring does not stop at just teaching them fundamental lab skills. She encourages them to participate in different events from competitions to conferences, provides them information relevant to their own interests, and continues to offer guidance as they gain independence in their own research projects. Many of them become co-authors on papers describing the research they help with and some have stayed on for graduate school. Several of her undergraduate students continue to remain in touch with her even after they graduated. She often discusses with students their future goals and expectations, offering them information about different ways to define and achieve success. Most importantly, she encourages leadership and independence. Students are encouraged to explore their interests, invest time and effort in their work, mentor others and enjoy their work.

She extends this approach to her teaching as well, peppering students with difficult challenges, coaxing responses, and sharing a laugh with over-the-top examples used to illustrate a point. In one student’s words, “When starting the Biomedical Engineering program in 2014, I was not expecting to build a relationship with any of the professors in the department. That all changed in the fall of 2016 when I took one of Dr. Rao’s classes. From there, so many doors of opportunity were opened for me just by reaching out to Dr. Rao. I was fortunate enough to work alongside her in her research lab gaining incredible experience in research. She was one of the most enthusiastic professors I had during my time at Michigan Tech and I attribute a lot of my success thus far to her guidance. During my last year, Dr. Rao helped revamp my resume, prepare me for interviews, and was excited to be a part of the process of helping me start my career. I will never forget when I got the call of being offered my dream job during a meeting with her and she was jumping up and down just as much as I was. Dr. Rao is truly a one-of-a-kind professor and person, I am so honored and thankful to have worked with her and continue to connect with her.”

A second student agrees that Rao’s mentoring extends to the classroom, saying “Dr. Rao’s mentorship of undergraduate students has been exemplary, giving students hands-on experience at applying exactly what they are learning in class towards solving real-world problems related to improving human health. Meaningful undergraduate research is part of the culture in our department and Dr. Rao has certainly promoted this important piece in the education of the next generation of engineers and scientists.”

Dean Callahan’s choice especially valued how seriously Rao takes mentoring. In her words, “Dr. Rao’s emphasis on hands-on science is inspirational. And in the classroom, she is well-known for engaging students with their learning. Working with students is her passion.”

Rao will be recognized at an end-of-term event with other showcase members, and is also a candidate for the CTL Instructional Award Series (to be determined this summer) recognizing introductory or large-class teaching, innovative or outside the classroom teaching methods, or work in curriculum and assessment.

By Michael R. Meyer, William G. Jackson CTL.