The BME Seminar Series features presentations surrounding the field of Biomedical Engineering.

Next Upcoming Seminar:

Date: 2018 October 23

Time: Noon - 1PM

Location: 1-075 RTF

Presentation Topic: Clinical Utility of Proposed Gait Stability Measures: Selection, Application and Evaluation of the Extrapolated Centre of Mass

Presenter: Jeremy Hall, MSc. candidate

Abstract:

In humans, gait stability is a complicated, multifaceted process which makes it difficult to establish an exact definition. This has led to the development of a variety of proposed stability measures, each with different characteristics affecting their practical application. In light of these considerations, the objectives were to: (1) select the measures that are clinically feasible; (2) demonstrate the practical feasibility of obtaining the selected measures and assess their robustness for a non-disabled sample; (3) evaluate the between-session reliability; and (4) demonstrate the clinical utility using three clinical case studies. From the selection process, the extrapolated centre of mass (XCoM) best demonstrated the characteristics of clinical feasibility. To quantify stability, the XCoM must remain within the limits of the base of support. The degree of stability is then given by the margin of stability (MoS): the minimum distance between the XCoM and the base of support. Non-disabled participants were asked to walk in the Computer-Assisted Rehabilitation Environment on a treadmill-driven surface. All participants returned for a repeatsession several weeks following initial testing. Three case study participants with hemophilic arthropathy, unilateral transtibial amputation, and mild traumatic brain injury were also included, each completing one session. Results suggest that the MoS at heel strike (MoS-HS) is best suited to quantifying stability in both the mediolateral and anteroposterior directions. Not only does MoSHS demonstrate reasonable variability, it also showed good repeatability between sessions. Furthermore, MoS-HS provided promising results towards highlighting differences between body sides in the case study participants.

All are welcome!

The BME Seminar Series features presentations by current graduate students as part of the BME 600A/B courses (Fall/Winter terms). Each of the seminars offers a glimpse into biomedical research taking place at our university.

Details about the next series will be posted soon!

Upcoming seminar:

Title: 3D Ultrasound Navigation System for Screw Insertion in Spine Surgery

Speaker: Kim Cuong Nguyen, Interdisciplinary PhD Student, Depts. of Radiology & Biomedical Engineering

Date: Wednesday, Oct. 10, 2018

Time: Noon to 1:00 PM

Venue: ECHA L1-220

Abstract:

The periodontium is a complex tooth-supporting structure consisting of four main components: the alveolar bone, cementum, gingiva, and periodontal ligament. Periodontium status in both healthy and disease state can be monitored by invasive and non-invasive clinical techniques. The invasive methods tend to cause iatrogenic damage to gingival tissues. In addition, conventional non-invasive methods, such as X-ray imaging and cone-beam computed tomography (CBCT), increase patient’s risk due to exposure to ionizing radiation. The cancer risk due to accumulated dose from repeated monitoring visits is higher for children and adolescents who are increasingly susceptible to deleterious effects of ionizing radiation due to fast cellular growth rate and organ development, and longer life expectancies. Ultrasound, a noninvasive and radiation-free technique, uses echoes of mechanical waves which carry information about the locations and strengths of the interfaces to create images of the targets. If ultrasound is found to be a reliable tool in the provision of tooth-periodontium tissues information, dental patients will stand to benefit from the decreased radiation risks. This work aims to investigate the feasibility of a medical ultrasound system with 20 MHz linear array transducer to image the connective soft and hard tissues surrounding and supporting the tooth by comparing ultrasound measurements with the gold standard. The in-vitro study with porcine incisors demonstrated the possibilities of using ultrasound for periodontal assessment. The human study of incisors from volunteered adolescent patients in Kaye Edmonton dental clinic has been performed to validate the reliability and agreement of ultrasound in comparison with CBCT. The next phase of data analysis including the reliabilities of ultrasound and its agreement with CBCT is in progress.  

RTF Table Tennis Tourney April 2018!

Want to play table tennis (ping-pong)?
Want to meet other people from RTF/Imaging Research?
Why not kill 2 birds with 1 stone?
If you're interested, e-mail Prayash and Kevin (or let them know in person)

Update 4 April 2018:

The paddles are here, the table is set, and the nets are waiting!

Tentatively, we are planning the tournament day during the week of April 23-27, but please use our Table Tennis Tourney Doodle Poll to indicate which day works best for you. The tourney bracket will include everyone who signs up.

We will also have a practice session some time prior to the tournament. We will use this to go over the rules, wipe some of the rust off, and make sure everyone is on the same page! Everyone who is interested can fill out the Practice Day Doodle Poll.

Keep a look out for an e-mail next Friday (April 13) confirming the date and time!

Please feel free to forward this to anyone in BME who may not have received it.


Prayash - room 1-086 RTF
prayash@ualberta.ca

Kevin - room 1-113 RTF
solar@ualberta.ca

Advances in Biomedical Engineering Today... Better Healthcare Tomorrow

The Department of Biomedical Engineering is at the forefront of one of the most rewarding areas of engineering, applying the principles and methods of engineering to medicine, engaging in research and teaching. Our research and teaching are second to none; the advances we make today will be seen in medicine tomorrow.

So if you want to improve healthcare, become a part of our team. 

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