Dr. Muyinatu Bell and gynecologic surgeon collaborator Dr. Karen Wang were among the 30 interdisciplinary faculty teams at Johns Hopkins selected to receive one of the 2018 JHU Discovery Awards. This award is designed to support cross-divisional research teams who are poised to arrive at important discoveries or creative works. The expectation is that these awards will spark new, synergistic interactions between investigators across the institution and lead to work of the highest quality and impact. This award will support their research topic of “Photoacoustic Image Guidance of Gynecological Surgeries.”
The PULSE Lab welcomes four undergraduate students who will be working with us this summer. They are pursuing undergraduate degrees from a mixture of universities around the country:
- University of Delaware (Newark, DE)
- Biomedical Engineering major
- NSF-funded REU student
- Massachusetts Institute of Technology (Cambridge, MA)
- Mechanical Engineering major with a concentration in Controls,
Instrumentation, and Robotics
- Leadership Alliance student
- Delta State University (Cleveland, MS)
- Pre-Med/Biology major
- McNair Scholar
- Johns Hopkins University (Baltimore, MD)
- Biomedical Engineering and Computer Science double major
Each student will be working with us for 10 weeks or more throughout the summer on various projects in the area of photoacoustic-guided surgery. Welcome Kelley, Jasmin, Bria, and Joanna!!!
Prof. Bell is one of “100 outstanding early career engineers” selected to meet for an intensive 2-1/2 day symposium to discuss cutting-edge developments in four engineering areas at the National Academy of Engineering’s 2018 US Frontiers of Engineering Symposium. This symposium will be hosted by MIT Lincoln Laboratory in Lexington, Massachusetts, September 5-7, 2018.
Our recently published JMI paper, which reports our experiments describing the feasibility of photoacoustic-guided hysterectomies with a da Vinci robot, was described in an article written for Health Data Management News: Enhanced imaging could cut errors in robot-aided surgeries.
Effective May 1, 2018, Prof. Bell will receive a secondary appointment as an Assistant Professor in the Department of Computer Science at JHU.
Congrats to Arun on the successful presentation of his research paper entitled “A Deep Learning Based Alternative to Beamforming Ultrasound Images” at IEEE ICASSP 2018 in Calgary, Alberta, Canada. This work is the first to propose deep learning as an alternative to the traditional ultrasound beamforming process and it was implemented for a single plane wave transmission. Check out our associated conference paper for more details!
Citation: Nair AA, Tran T, Reiter A, Bell MAL, A deep learning based alternative to beamforming ultrasound images, IEEE International Conference on Acoustics, Speech and Signal Processing, Calgary, Alberta, Canada, April 15-20, 2018 [pdf]
Congratulations to Derek Allman! His paper entitled “Photoacoustic Source Detection and Reflection Artifact Removal Enabled by Deep Learning” was accepted to the IEEE Transactions on Medical Imaging. This paper is expected to appear in the Special Issue on Machine Learning for Image Reconstruction.
This work is the first to use deep convolutional neural networks (CNNs) as an alternative to the photoacoustic beamforming and image reconstruction process. We used simulations to train CNNs to identify sources and reflection artifacts in raw photoacoustic channel data, reformatted the network outputs to usable images that we call CNN-Based images, and transferred these trained networks to operate on experimental data. Multiple parameters were varied during training (e.g., channel noise, number of sources, number of artifacts, sound speed, signal amplitude, transducer model, lateral and axial locations of sources and artifacts, and spacing between sources and artifacts). The classification accuracy of simulation and experimental data ranged from 96-100% when the channel signal-to-noise ratio was -9 dB or greater and when sources were located in trained locations. Over 99% of the results had submillimeter location accuracy. Our CNN-Based images have high contrast, no artifacts, and resolution that rivals the traditional photoacoustic image resolution of low-frequency ultrasound probes.
Citation: D Allman, A Reiter, MAL Bell, Photoacoustic Source Detection and Reflection Artifact Removal Enabled by Deep Learning, IEEE Transactions on Medical Imaging (accepted) [pdf]
Prof. Bell will give a seminar to the JHU Computer Science Department on April 10th, 2018.
“Directing Light and Learning from Sound to Guide Surgeries”
Just like programming a robot requires meticulous planning, coding, and execution, these same requirements are ever present when designing and controlling the individual optical and acoustic components of photoacoustic imaging systems. Photoacoustic imaging utilizes light and sound to make images by transmitting laser pulses that illuminate regions of interest, which subsequently absorb the light, causing thermal expansion and the generation of sound waves that are detected with conventional ultrasound transducers. The Photoacoustic and Ultrasonic Systems Engineering (PULSE) Lab is developing novel methods that use photoacoustic imaging to guide surgeries with the ultimate goal of eliminating surgical complications caused by injury to important structures – like major blood vessels and nerves – that are otherwise hidden from a surgeon’s immediate view.
In this talk, I will describe our novel light delivery systems that attach to surgical tools in order to direct light toward the surgical site. I will also introduce how we learn from the physics of sound propagation in tissue to develop acoustic beamforming algorithms that improve image quality, using both state-of-the-art deep learning methods and our newly developed spatial coherence theory. These light delivery and acoustic beamforming methods hold promise for robotic tracking tasks, visualization and visual servoing of surgical tool tips, and assessment of relative distances between the surgical tool and nearby critical structures (e.g., major blood vessels and nerves that if injured will cause severe complications, paralysis, or patient death). Impacted surgeries and procedures include neurosurgery, spinal fusion surgery, hysterectomies, and biopsies.
Muyinatu Bell is an Assistant Professor of Electrical and Computer Engineering with a joint appointment in the Biomedical Engineering Department at Johns Hopkins University, where she founded and directs the Photoacoustic and Ultrasonic Systems Engineering (PULSE) Lab. Dr. Bell earned a B.S. degree in Mechanical Engineering (biomedical engineering minor) from Massachusetts Institute of Technology (2006), received a Ph.D. degree in Biomedical Engineering from Duke University (2012), and conducted research abroad as a Whitaker International Fellow at the Institute of Cancer Research and Royal Marsden Hospital in the United Kingdom (2009-2010). Prior to joining the faculty, Dr. Bell completed a postdoctoral fellowship with the Engineering Research Center for Computer-Integrated Surgical Systems and Technology at Johns Hopkins University (2016), where she was co-mentored by faculty in the Computer Science Department and the School of Medicine. Dr. Bell has published over 40 scientific journal articles and conference papers, holds a patent for short-lag spatial coherence beamforming, and is the recipient of numerous awards, grants, and fellowships, including the NIH K99/R00 Pathway to Independence Award (2015), MIT Technology Review’s Innovator Under 35 Award (2016), and the NSF CAREER Award (2018).
[Watch seminar video / JHU login required]
PULSE Lab members will present the following five talks at the International Symposium on Ultrasonic Imaging and Tissue Characterization, May 30 – June 1, 2018:
- Application of robust short-lag spatial coherence beamforming to breast ultrasound data, Alycen Wiacek, Ole Marius Hoel Rindal, Kelly Fabrega-Foster, Susan Harvey, Muyinatu
A. Lediju Bell, Johns Hopkins U. and U. Oslo
- Implications of theoretical photoacoustic spatial covariance for short-lag spatial coherence imaging, Michelle T. Graham, Muyinatu A. Lediju Bell
- Deep learning alternative to beamforming ultrasound images, Arun Asokan Nair, Trac D. Tran, Austin Reiter, Muyinatu A. Lediju Bell
- Deep learning for photoacoustic source detection and reflection artifact removal, Derek M. Allman, Austin Reiter, Muyinatu A. Lediju Bell
- Comparative study of CT-US registration performance with DAS and SLSC ultrasound beamforming techniques, Eduardo Gonzalez, Michelle Graham, Muyinatu A. Lediju Bell
Symposium website: http://uitc-symposium.org/
Monitoring and Guidance of Arrhythmia Therapy with Optical Imaging
Date: Monday, March 12, 2018
Time: 4:00 pm
Location: Clark 110, Homewood Campus
Video-teleconferenced to Traylor 709, East Baltimore Campus
Host: Dr. Muyinatu (Bisi) Bell
Congratulations to Arun Nair on the acceptance of his manuscript to the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP).
Paper ID: 3434
Title: A DEEP LEARNING BASED ALTERNATIVE TO BEAMFORMING ULTRASOUND IMAGES
Session Title: ‘SAM Poster Session 4: Beamforming’
Authors: AA Nair, T Tran, A Reiter, MAL Bell
This conference will take place 15–20 April 2018.
Prof. Bell is featured in the 2018 Women in Optics Planner produced by SPIE. This planner includes photos and interesting facts about highlighted women to introduce girls and young women to the possibilities of STEM careers. Five thousand copies of the planner are printed and distributed, free of charge, in more than 25 countries worldwide annually. SPIE Members, career counselors, science teachers, and community clubs can request free copies of this planner.
Congratulations to Prof. Bell for being selected to receive the NSF CAREER Award. The Faculty Early Career Development (CAREER) Program is a Foundation-wide activity that offers the National Science Foundation’s most prestigious awards in support of early-career faculty who have the potential to serve as academic role models in research and education and to lead advances in the mission of their department or organization. The objective of Prof. Bell’s proposal entitled CAREER: Technical & Theoretical Foundations for Photoacoustic-Guided Surgery is to apply optical analyses, spatial coherence theory, and independent resolution models to describe fundamental performance limits of photoacoustic-based navigation during robotic and nonrobotic surgery.
Congrats to undergraduate student Margaret Allard on the acceptance of her first-author journal paper entitled Feasibility of photoacoustic-guided teleoperated hysterectomies. This paper will appear in the Journal of Medical Imaging (JMI) Special Section on Image-Guided Procedures, Robotic Interventions, and Modeling.
This paper is the first to describe the feasibility of photoacoustic integration with the da Vinci surgical robot to potentially guide minimally invasive hysterectomies and other gynecological surgeries. To implement photoacoustic imaging, a novel light delivery system was designed and implemented to surround da Vinci tools. This new light delivery system uniquely enabled the investigations described in the paper, including the first known analysis of the optimal tool orientations for photoacoustic-guided hysterectomies using a da Vinci scissor tool (which partially blocks the transmitted light in some cases). This work can be extended to other da Vinci tools and laparoscopic instruments with similar tip geometry.
Margaret completed this work through her participation in our NSF Research Experience for Undergraduates in Computational Sensing and Medical Robotics.
The PULSE Lab spreads holiday cheer at our annual ECE Department Holiday party. From left to right: Alycen, Arun, Prof. Bell, Michelle, Eduardo, and Derek.
Congratulations to PULSE Lab undergraduate student Brooke Stephanian on her 2nd place win in the Optics and Photonics Conference at JHU! She presented a poster that summarized the work she completed this semester on the topic “Theoretical Simulation to Optimize Short-Lag Spatial Coherence (SLSC) Photoacoustic Image Quality”.
Conference website: https://engineering.jhu.edu/ece/osa/hopkins-photonics-conference/
Congrats to Arun Nair on the acceptance of his paper entitled “Robust Short-Lag Spatial Coherence Imaging” to the IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. This paper will appear in the special issue on sparsity driven methods in medical ultrasound.
This work is the first to re-examine the lag summation step of the Short-Lag Spatial Coherence (SLSC) algorithm and achieve additional robustness to coherence outliers through both weighted summation of individual coherence images (i.e., M-weighting) and the application of robust principal component analysis (i.e., Robust SLSC, or R-SLSC). Results show great promise for smoothing out the tissue texture of SLSC images, improving boundary delineation, and enhancing anechoic or hypoechoic target visibility at higher lag values. These improvements could be useful in clinical tasks such as breast cyst visualization, liver vessel tracking, and obese patient imaging.
Citation: AA Nair, T Tran, MAL Bell, Robust Short-Lag Spatial Coherence Imaging, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control (accepted) [pdf]
Also Available on Journal Website: http://ieeexplore.ieee.org/document/8166807/
Congrats to undergraduate student Brooke Stephanian and PhD student Derek Allman! Their abstracts were accepted to the 2017 Optics and Photonics Conference at Johns Hopkins University.
Brooke will present a poster entitled: Theoretical Simulation to Optimize Short-Lag Spatial Coherence (SLSC) Photoacoustic Image Quality
Derek will give a presentation entitled: Using convolutional neural networks to eliminate reflection artifacts in experimental photoacoustic images
Conference details: https://engineering.jhu.edu/ece/osa/hopkins-photonics-conference/
Derek, Michelle, Alycen, and Eduardo dress up as the four Jims from The Office.
The goal of this conference is to bring together leaders in the optical sciences from a wide range of subjects, to foster learning, collaboration, and to emphasize the impact optics and photonics have on a plethora of disciplines.
The conference will feature invited talks by the following researchers in various optics and photonics areas:
H. Nedwell Ramsey Professor, University of Pennsylvania
Professor of Electrical Electronics and Computer Science, University of Michigan
Assistant Professor, Electrical and Computer Engineering Department, Boston University
Associate Professor, Electrical Engineering Department, Stanford University
Assistant Professor, The Fischell Department of Bioengineering, University of Maryland
For more details: https://engineering.jhu.edu/ece/osa/hopkins-photonics-conference/
Our paper, “Feasibility of photoacoustic guided hysterectomies with the da Vinci robot,” was accepted for Oral presentation at SPIE Medical Imaging in the Image-Guided Procedures, Robotic Interventions, and Modeling conference.
Keynote and Medical Robotics
Tuesday 13 February 2018
10:10 AM – 12:10 PM
Feasibility of photoacoustic guided hysterectomies with the da Vinci robot
Authors: Margaret Allard, Joshua Shubert, Muyinatu A. Lediju Bell
Congrats to Margaret, Josh, and Prof. Bell!
Three PULSE Lab abstracts were accepted to SPIE Photonics West in the BiOS Conference Track: Photons Plus Ultrasound: Imaging and Sensing 2018 (Conference 10494). This conference track will take place Sunday- Wednesday January -28-31, 2018 at the The Moscone Center in San Francisco, California.
- A novel drill design for photoacoustic guided surgeries
Authors: Joshua Shubert, Muyinatu BellSession 3: Therapy Monitoring and Guidance IISunday 28 January 2018
1:30 PM – 2:45 PM
- Using convolutional neural networks to eliminate reflection artifacts in experimental photoacoustic images
Authors: Derek Allman, Austin Reiter, Muyinatu Bell
Session PTue: Posters-Tuesday
Tuesday 30 January 2018
6:00 PM – 8:00 PM
- Development and validation of a short-lag spatial coherence theory for photoacoustic imaging
Authors: Michelle Graham, Muyinatu Bell
Session PTue: Posters-Tuesday
Tuesday 30 January 2018
6:00 PM – 8:00 PM
Congrats to Josh, Derek, and Michelle!
Conference track website: https://spie.org/PWB/conferencedetails/photons-plus-ultrasound
Presented by Professor Michael Insana
Department of Bioengineering, ECE, and Beckman Institute, University of Illinois at Urbana-Champaign
Hosted By Muyinatu Bell
Congrats to Joshua Shubert on passing his ECE Department Qualifying Exam!
We just returned from a successful, invigorating, and inspiring IEEE International Ultrasonics Symposium (IUS) held in Washington, DC at the Omni Shoreham Hotel. Some photograph highlights of our involvement appear below.
Joshua Shubert presented his poster entitled “Photoacoustic Based Visual Servoing of Needle Tips to Improve Biopsy on Obese Patients”
Derek Allman presented his poster entitled “A Machine Learning Method to Identify and Remove Reflection Artifacts in Photoacoustic Channel Data“
Prof. Bell served on the 2017 IUS Organizing Committee as the Communications Chair. She received a certificate from the UFFC Society President (Clark Nguyen, left) and Vice President for Ultrasonics (Jafar Saniie, right) in appreciation of her service.
Michelle Graham (photo unavailable) also presented her poster entitled “Theoretical Application of Short-Lag Spatial Coherence to Photoacoustic Imaging.”
PULSE Lab members additionally collaborated to contribute to the following papers:
The PULSE Lab is grateful to NVIDIA Corporation for donating a state-of-the-art Titan Xp GPU to support our clinical implementation of novel ultrasound and photoacoustic imaging algorithms.
Congrats to Derek Allman and Michelle Graham on passing their ECE Department Qualifying Exams!
The PULSE Lab welcomes Alycen Wiacek. Alycen has a M.S. degree in ECE from Oakland University (Rochester, MI) and she completed her B.S. degree in ECE at Wayne State University (Detroit, MI). Welcome Alycen!
The UltraSound Toolbox (USTB) is a free MATLAB toolbox for processing ultrasonic signals. The primary purpose of the USTB is to facilitate the comparison of imaging techniques and the dissemination of research results. The PULSE Lab is proud to collaborate on this effort to deliver SLSC beamforming to the broader ultrasound community. An example using the SLSC algorithm on a CIRS phantom and on human heart data was added today, as described here: http://www.ustb.no/examples/advanced-beamforming/short-lag-spatial-coherence-slsc/. The heart and phantom datasets and the SLSC code are now freely available to use. Additional datasets and beamforming code can be found by perusing the USTB website.
Congrats to Ole Marius Hoel Rindal (our visiting student from the University of Oslo) for putting in the work required to pull this together!
The PULSE Lab welcomes our newest graduate student, Eduardo González. Eduardo is a Fulbright Fellow from Peru, and he is a student in the JHU BME Department. Welcome Eduardo!
Congratulations to PULSE Lab undergraduate student Margaret Allard who received the best presentation award from the NSF REU program in Computational Sensing and Medical Robotics. Her presentation was entitled Identifying Optimal da Vinci Tool Orientations for Photoacoustic Guided Hysterectomies. Prof. Jerry Prince presented Margaret with this award.
This award was shared by Margaret Allard and Mindy Wagenmaker.
Our paper entitled Photoacoustic-based approach to surgical guidance performed with and without a da Vinci robot was accepted for publication in the Journal of Biomedical Optics (JBO) Special Section on Translational Biophotonics.
Congrats to undergraduates Neeraj Gandhi and Margaret Allard!
This work was completed in partnership with the NSF REU in Computational Sensing and Medical Robotics along with collaborators Sungmin Kim and Peter Kazanzides, and it is the first to integrate photoacoustic imaging with the da Vinci surgical robot. It was also featured on the journal homepage.
The Miracle City Summer Enrichment Camp (MCSEC) visited the PULSE Lab and learned about topics ranging from sonography to robot assisted ultrasound imaging and photoacoustic-guided surgery. Hands-on demonstrations enabled this inquisitive group of middle schoolers to scan an abdominal phantom, operate a neurosurgical drill, and teleoperatively manipulate the da Vinci robot arms in the LCSR mock operating room.
Prof. Bell’s co-authored journal article, System integration and in vivo testing of a robot for ultrasound guidance and monitoring during radiotherapy, was selected to be featured by IEEE Transactions on Biomedical Engineering.
Three PULSE Lab abstracts were accepted for presentation during the 2017 IEEE International Ultrasonics Symposium (IUS) to be held on September 6-9, 2017 at the Omni Shoreham Hotel, Washington D.C., USA.
- “Theoretical Application of Short-Lag Spatial Coherence to Photoacoustic Imaging” to be presented by Michelle Graham in the MBB: Non linear and coherence imaging poster session, 3-4 pm on Thursday, September 7, 2017. (Abstract ID: 1526)
- “Photoacoustic Visual Servoing of Needle Tips to Improve Biopsy Targeting in Obese Patients” to be presented by Joshua Shubert in the MPA: Technical Developments in Photoacoustic Imaging poster session, 3-4 pm on Friday, September 8, 2017. (Abstract ID: 1088)
- “Identification and removal of reflection artifacts in photoacoustic images using convolutional neural networks” to be presented by Derek Allman in the MIM: Machine learning poster session, 9:30-10:30 am on Saturday, September 9, 2017. (Abstract ID: 1523)
Congrats to Michelle, Josh, and Derek!
Symposium website: http://ewh.ieee.org/conf/ius/2017/
The PULSE Lab welcomes NSF REU student Margaret Allard! She is an undergradute student majoring in Physics at Smith College, and she will be working with us through the 10 week Computational Sensing & Medical Robotics summer program.
PULSE Lab members presented the following four talks at the International Symposium on Ultrasonic Imaging and Tissue Characterization, June 5-7, 2017:
- Principal component short-lag spatial coherence imaging (PC-SLSC), Arun Asokan Nair, Trac D. Tran and Muyinatu A. Lediju Bell
- Photoacoustic-based visual servoing of needle tips to improve surgery on obese patients, Joshua Shubert and Muyinatu Bell
- Theoretical application of short-lag spatial coherence to photoacoustic imaging, Michelle Graham and Muyinatu Lediju Bell
- Evaluation of a convolutional neural network for identifying reflection artifacts in photoacoustic imaging, Derek M. Allman, Austin Reiter and Muyinatu A. Lediju Bell
Michelle (left) and Derek (right) giving their first PULSE Lab research presentations:
Symposium website: http://uitc-symposium.org/
Prof. Bell will co-chair the IEEE ISCAS 2017 Special Session entitled “Innovations In Acoustics”. This session will be held on May 29, 2017 at the Baltimore Marriott Waterfront in Baltimore, MD, and it provides unique access to acoustic researchers from various academic departments across Johns Hopkins University. This special session will cover acoustics on various levels, starting from background noise suppression in an electronic stethoscope, to bat echolocation processing to ultrasonic medical imaging and acoustic beamforming. It includes an invited talk from the father of microphone technology, Prof. Jim West, a National Medal of Technology and Innovation winner, a member of the National Academy of Engineering, and a recipient of countless additional high honors. The session also includes a technical talk from a local ultrasound imaging start-up company (Sonavex, Inc.) formed based on ideas born here in Baltimore at Johns Hopkins University, which uniquely supports the conference theme “from Dreams to Innovation”.
Prof. Bell presents the PULSE lab’s work to improve photoacoustic-guided surgeries using machine learning at the 3rd Global DEEP LEARNING IN HEALTHCARE SUMMIT in Boston, MA, May 25-26, 2017: https://www.re-work.co/events/deep-learning-health-boston-2017
Photo credit: teamrework
- New faculty talk by Prof. Bell
- Hands-on Demos in the PULSE Lab
The PULSE Lab received the 2nd phase of Dr. Bell’s NIH K99/R00 award to support our project entitled “Coherence-Based Photoacoustic Image Guidance of Transsphenoidal Surgeries”. This work is motivated by the clinical challenges surrounding the removal of pituitary tumors using the minimally invasive endonasal transsphenoidal approach, which incurs the deadly risk of causing injury to the internal carotid arteries. We propose to eliminate this risk by developing a sophisticated photoacoustic imaging system that visualizes blood vessels located behind bone during the surgical operation. This photoacoustic imaging system will be equipped with our novel coherence-based beamformers and our specialized light delivery systems.
Prof. Bell will give the following invited seminar in March 2017:
Johns Hopkins BME Seminar Series
Monday, March 6, 2017
Traylor 707-09 School of Medicine Campus
(video conferenced to Clark 110)
University of Southern California BME Seminar Series
Friday, March 10, 2017
2:30 pm – 4:00 pm
Denney Research Center (DRB 146)
Our paper “Improving the Safety of Telerobotic Drilling of the Skull Base Via Photoacoustic Sensing of the Carotid Arteries” was accepted for presentation at the IEEE International Conference on Robotics and Automation (ICRA), Singapore, May 29-June 3, 2017.
Prof. Bell Speaks the Future Innovators Forum of the IBM PartnerWorld Leadership Conference, Feb. 14, 2017 in Las Vegas, Nevada on the topic “Creating clearer imaging to diagnose disease earlier and reduce patient risk.”
The PULSE Lab welcomes BME undergraduate student Brooke Stephanian who will be joining us to assist with our clinical research projects.
The PULSE Lab’s work to develop specialized light delivery systems that surround surgical tools is featured in a promotional video for the SPIE Photonics West conference. The entire SPIE news release is available here.
The PULSE Lab’s latest work to apply machine learning to photoacoustic signal processing was featured in the Winter 2017 issue of the Society of Women Engineers (SWE) Magazine. The story appears as a subsection of the piece entitled, AI’s Forthcoming Transformation of Medicine. This work will also be presented at the upcoming SPIE Photonics West conference.
Prof. Bell is featured in the Impact section of the winter issue of the JHU Engineering magazine. The article, entitled Clearer Vision for Surgeons, focuses on our lab’s latest venture to integrate photoacoustic imaging with a daVinci surgical robot in collaboration with researchers in the Laboratory for Computational Sensing and Robotics.
Congratulations to Blackberrie Eddins on the acceptance of her manuscript, Design of a Multifiber Light Delivery System for Photoacoustic-Guided Surgery, for publication in the Journal of Biomedical Optics to appear in the 2017 Photoacoustic Imaging and Sensing Special Section.
Professor of Electrical & Computer Engineering and Biomedical Engineering
Georgia Institute of Technology and Emory University School of Medicine
Clinical Translation of Emerging Ultrasound Imaging Technologies
Thursday, December 8, 2016 at 3pm in Hodson 311 (reception to follow)
Hosted By Muyinatu Bell
The PULSE lab presented a poster at the inaugural Malone Center Symposium for Engineering in Healthcare: http://malonecenter.jhu.edu/inaugural-johns-hopkins-research-symposium-engineering-healthcare/
Title: Integration of Real-Time Photoacoustic Image Guidance with the da Vinci Surgical System
Authors: Neeraj Ghandi, Sungmin Kim, Peter Kazanzides, Muyinatu A. Lediju Bell
The PULSE Lab welcomes Ole Marius Hoel Rindal, a visiting 4th year PhD student from Andreas Austeng’s lab at the University of Oslo in Norway.
Three abstracts from the PULSE Lab were accepted to SPIE Photonics West, which will take place January 28 – February 2, 2017 in San Francisco, California:
- Paper 10064-18: A machine learning approach to identifying point source locations in photoacoustic data (29 January 2017 • 5:30 – 7:30 PM)
- Paper 10064-101: Optimizing light delivery for a photoacoustic surgical system (29 January 2017 • 3:00 – 3:15 PM)
- Paper 10064-125: Accuracy of a novel photoacoustic-based approach to surgical guidance performed with and without a da Vinci robot (29 January 2017 • 5:30 – 7:30 PM)
The PULSE Lab welcomes its three newest graduate students Derek, Josh, and Michelle!
Prof. Muyinatu Bell is teaching EN.520.631, Ultrasound and Photoacoustic Beamforming, during the Fall 2016 semester. This is a new course that she is developing.
Professor Bell was named by MIT Technology Review as one of 35 Innovators Under 35 for her innovative work in the fields of biotechnology and medicine. She is recognized as an Inventor on the list.
Congratulations to PULSE Lab undergraduate student Blackberrie Eddins for winning the first place final presentation award in the 2016 NSF Computational Sensing and Medical Robotics (CSMR) Research Experience for Undergraduates (REU) program at JHU! She tied in first place for this award with Luke Arend, another student participant.
Prof. Bell’s co-authored paper, “System integration and in-vivo testing of a robot for ultrasound guidance and monitoring during radiotherapy”, has been accepted for publication in IEEE Transactions on Biomedical Engineering.
Dr. Bell’s co-authored paper, Synthetic-aperture based photoacoustic re-beamforming (SPARE) approach using beamformed ultrasound data was accepted for publication in Biomedical Optics Express.
Dr. Bell makes a guest appearance on The STEM Dialogue, a podcast series designed to expose high school students to the world of Science, Technology, Engineering and Math:
Additional episodes of this podcast series are available by visiting:
Welcome to undergraduate students Blackberrie Eddins and Neeraj Gandhi who will be working with us this summer through the NSF Computational Sensing and Medical Robotics (CSMR) Research Experience for Undergraduates (REU) program.
Our paper, Feasibility of photoacoustic image guidance for telerobotic endonasal transsphenoidal surgery, which describes the first telesurgical photoacoustic image-guided navigation system setup implemented on a research da Vinci Surgical System, has been accepted as an oral presentation at the 6th IEEE RAS/EMBS International Conference on Biomedical Robotics and Biomechatronics, June 26-29, 2016, in University Town, Singapore.
Dr. Bell delivered an invited talk on MIT’s campus as part of the Early Career Spotlight for the NSBE National Convention Academic Research Leadership thread.
Weekly meetings to renovate the three PULSE lab rooms on the Homewood campus have commenced
Dr. Bell’s paper entitled “Spatial Angular Compounding of Photoacoustic Images” was accepted to IEEE Transactions on Medical Imaging. You can view a pre-print of the paper here.
Dr. Bell accepts a tenure track faculty position with a start date of July 1, 2016. Her appointments will be in the ECE and BME Departments at Johns Hopkins University.
Dr. Bell is pleased to announce the lauching of her first interactive online course, Introduction to Medical Imaging. Interested students may use this link to enroll in the course and receive a special discount.
- Dr. Bell’s co-authored paper, System Integration and Preliminary In-Vivo Experiments of a Robot for Ultrasound Guidance and Monitoring during Radiotherapy, was the runner-up for the Best Paper Award at the 17th International Conference on Advanced Robotics in Istanbul, Turkey. The paper received honorable mention.
- Dr. Bell’s student, Alicia Dagle, received the Best Presentation Award at the 2015 NSF Computational Sensing and Medical Robotics Research Experience for Undergraduates (CSMR REU) Award Ceremony. Alicia is an undergraduate student at Clark University who will pursue a joint engineering program with Columbia University. She worked closely with Dr. Bell at Johns Hopkins University throughout the ten-week summer program.
Dr. Bell is featured in the STEM Minority Summer/Fall 2014 issue of Diversity/Careers. You can read her inspiring story here.
Dr. Muyinatu A. Lediju Bell received the NIH Pathway to Independence Award for her project entitled Coherence-Based Photoacoustic Image Guidance of Transsphenoidal Surgeries. This award promises support for 1-2 more years of postdoctoral training and the first 3 years of Dr. Bell’s independent faculty position.
Dr. Bell has a role in the Annual Johns Hopkins Thank You Video with the President of JHU.
Dr. Muyinatu A. Lediju Bell is selected as an awardee in the Ford Foundation Fellowship 2013 postdoctoral competition, sponsored by the Ford Foundation and administered by the National Research Council of the National Academies. The competition seeks to increase the diversity of the nation’s college and university faculties by increasing their ethnic and racial diversity, to maximize the educational benefits of diversity, and to increase the number of professors who can and will use diversity as a resource for enriching the education of all students.
Dr. Muyinatu A. Lediju Bell was one of 10 postoctoral fellows to win the prestigious UNCF-Merck Postdoctoral Fellowship. She is officially a two-time recipient of the award, as she also won the graduate level award to complete her PhD dissertation entitled, Improved Visualization of Endocardial Borders with Short-Lag Spatial Coherence Imaging. The postdoctoral award totals $92,000 for a maximum of two years.