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Parker Medical Imaging Research

Recent News

"Fat and Fibrosis as Confounding Cofactors in Viscoelastic Measurements of the Liver"

February 10, 2021

A paper co-authored by PhD student Sedigheh Poul and Professor Kevin Parker titled "Fat and fibrosis as confounding cofactors in viscoelastic measurements of the liver" has been published in Physics in Medicine and Biology. The abstract follows; more information can be found here.

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"Multiparametric ultrasound imaging for the assessment of normal versus steatotic livers"

January 29, 2021

A paper co-authored by PhD student Jihye Baek and Professor Kevin Parker titled "Multiparametric ultrasound imaging for the assessment of normal versus steatotic livers" has been published in Nature Scientific Reports. The article describes work done with collaborators at The University of Texas at Austin. The abstract follows; more information can be found here.

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U.S. Patent Issued

January 12, 2021

Congratulations to Professor Parker, whose patent titled "Scattering and Reflection Identification System and Method" was issued on January 12, 2021 (assigned patent number 10,890,661). Please see here more information.

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"Elastography imaging: the 30 year perspective"

December 20, 2020

Congratulations to Dr. Juvenal Ormachea and Professor Kevin Parker on the publication of their review article titled "Elastography imaging: the 30 year perspective." The comprehensive review was published in the December issue of Physics in Medicine and Biology. The abstract follows, and more information can be found here.

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"Comprehensive Viscoelastic Characterization of Tissues and the Inter-relationship of Shear Wave (Group and Phase) Velocity, Attenuation and Dispersion"

December 1, 2020

A paper co-authored by postdoctoral associate Dr. Juvenal Ormachea and Professor Kevin Parker titled "Comprehensive viscoelastic characterization of tissues and the inter-relationship of shear wave (group and phase) velocity, attenuation and dispersion" has been published in the December 2020 issue of Ultrasound in Medicine and Biology. The abstract follows; more information can be found here

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"Scattering Signatures of Normal versus Abnormal Livers with Support Vector Machine Classification"

December 1, 2020

A paper co-authored by PhD students Jihye Baek and Sedigheh Poul and Professor Kevin Parker titled "Scattering signatures of normal versus abnormal livers with support vector machine classification" has been published in the December 2020 issue of Ultrasound in Medicine and Biology. Co-authors are Pfizer Inc. collaborators Terri Swanson and Dr. Teresa Tuthill. The abstract follows; more information can be found here

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"H-scan, Shear Wave and Bioluminescent Assessment of the Progression of Pancreatic Cancer Metastases in the Liver"

December 1, 2020

A paper co-authored by PhD student Jihye Baek and Professor Kevin Parker titled "H-scan, shear wave and bioluminescent assessment of the progression of pancreatic cancer metastases in the liver" has been published in the December 2020 issue of Ultrasound in Medicine and Biology. Co-authors include Professor Marvin Doyley and Dr. Rifat Ahmed (UR Department of Electrical and Computer Engineering), and Dr. Scott Gerber and Dr. Jian Ye (URMC Department of Surgery). The abstract follows; more information can be found here

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"Validations of the Microchannel Flow Model for Characterizing Vascularized Tissues"

November 30, 2020

A paper co-authored by PhD student Sedigheh Poul, postdoctoral associate Dr. Juvenal Ormachea, and Professor Kevin Parker titled "Validations of the microchannel flow model for characterizing vascularized tissues" was published on November 30, 2020 by MDPI journal Fluids. Collaborator Dr. Stefanie Hollenbach (URMC Department of Obstetrics and Gynecology) is also an author. The abstract follows; more information can be found here

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Ormachea Recognized by MIT Technology Review

November 24, 2020

Juvenal Ormachea in the labCongratulations to Dr. Juvenal Ormachea, postdoctoral researcher in Professor Parker's lab, who has been selected by the MIT Technology Review as one of the "top 35 innovators under 35" for Latin America. Dr. Ormachea was selected for his work creating a non-invasive method to detect cancer, liver diseases such as cirrhosis, and diabetic foot ulcers. His approach is based on medical ultrasound images generated using ultrasound scanners. More information can be found here. Congratulations to Dr. Ormachea on this prestigious recognition of his work!

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Parker Receives NIH Award

October 16, 2020

Professor Kevin Parker has received a grant from the National Institutes of Health to use optical coherence tomography (OCT) elastography to perform biomechanical measurements in mice, showing the variations in the softness and stiffness of brain tissue over time that are associated with aging and neurodegenerative diseases such as Alzheimer’s disease. Co-investigators on this $421,880 project titled "Advanced Brain OCT Elastography" include Professor Jannick Rolland of the Institute of Optics, Dr. Maiken Nedergaard of the Department of Neurosurgery, and MD/PhD student Gary Ge.

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Parker Lab Represented at IEEE Ultrasonics Symposium

September 11, 2020

Various members of the Parker Lab and collaborators participated in this year's virtual IEEE International Ultrasonics Symposium (IUS), which took place from September 6-11. The following presentations highlighted the Lab's work:

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Ge Receives NIH Fellowship

August 28, 2020

 head shot of Gary GePhD candidate Gary Ge has been awarded the prestigious $202,080 Ruth L. Kirschstein National Research Service Award as part of the National Institutes of Health F30 Fellowships program. Gary, supervised by Professors Kevin Parker and Jannick Rolland (Institute of Optics), will pursue his project titled “Investigation of Brain Elasticity in Aging and Alzheimer’s Disease Enabled by Optical Coherence Elastography.” Congratulations Gary!

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"Infringement Battles: A Case Study Illustrates the Need for Reforms"

August 1, 2020

A paper authored by Professor Kevin Parker titled "Infringement battles: a case study illustrates the need for reforms" has been published in the August issue of Technology & Innovation.  More information can be found here.

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Poul Receives Edward Peck Curtis Awards for Excellence in Teaching

June 9, 2020

Sedy Poul receives teaching award.Congratulations to Sedigheh (Sedy) Sheykholeslami Poul, PhD candidate supervised by Professor Kevin Parker, who received a 2020 Edward Peck Curtis Award for Excellence in Teaching by a Graduate Student. Established to encourage excellence in the work of graduate students who assist undergraduate instruction, the Curtis Award for Graduate Students is awarded to full-time graduate students who have had significant face-to-face interaction with undergraduate students in the classroom or laboratory. Sedy was nominated for this award by Douglas Kelley, associate professor of mechanical engineering, for her work as a teaching assistant for ME 225, Introduction to Fluid Dynamics (read more here). Congratulations Sedy!

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"Burr, Lomax, Pareto and Logistic Distributions from Ultrasound Speckle"

June 2, 2020

A paper authored by Professor Kevin Parker and PhD candidate Sedigheh S. Poul titled "Burr, Lomax, Pareto, and logistic distributions from ultrasound speckle" has been published in the July-September issue of Ultrasonic Imaging. More information can be found here.

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Zvietcovich Wins 2020 Outstanding Dissertation Award

May 29, 2020

 Fernando Zvietcovich headshotFernando Zvietcovich has been selected as the winner of the 2020 Outstanding Dissertation Award for Engineering and Applied Sciences in Arts, Sciences and Engineering. This award recognizes the quality of Fernando's thesis titled "Dynamic Optical Coherence Elastography", and is a testament to his exceptional work as a graduate student at the University of Rochester. Fernando received his PhD under the guidance of research advisors Professor Kevin Parker and Professor Jannick Rolland, and he is currently a Postdoctoral Fellow in Dr. Kirill Larin's Biomedical Optics Laboratory at the University of Houston.  Congratulations Fernando!

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"Fine-tuning the H-scan for Discriminating Changes in Tissue Scatterers"

May 19, 2020

A manuscript authored by Professor Kevin Parker and PhD candidate Jihye Baek titled "Fine-tuning the H-scan for discriminating changes in tissue scatterers" has been published in Biomedical Physics and Engineering Express. More information can be found here.

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Ge Receives SPIE Scholarship

May 11, 2020

Congratulations to Gary Ge, who has been awarded a 2020 Optics and Photonics Education Scholarship by SPIE, the international society for optics and photonics, for his potential contributions to the field of optics, photonics or related fields. Gary is an MD/PhD student in Optics at the University of Rochester. Under the co-mentorship of Professors Kevin Parker and Jannick Rolland, he currently investigates brain elasticity changes in aging and neurodegeneration using optical coherence tomography. More information can be found here.

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"Speckle from Branching Vasculature: Dependence on Number Density"

April 11, 2020

A manuscript authored by Professor Kevin Parker and PhD candidate Sedigheh S. Poul titled "Speckle from branching vasculature: dependence on number density" has been published in the Journal of Medical Imaging. More information can be found here.

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"Liver Backscatter and the 3D Fractal Vasculature’s Autocorrelation Function"

January 22, 2020

A paper authored by Professor Kevin Parker and collaborators Dr. Jonathan Carroll-Nellenback (UR Department of Physics and Astronomy) and Dr. R. James White and Dr. Ronald Wood (University of Rochester Medical Center) titled "Liver backscatter and the 3D fractal vasculature’s autocorrelation function" has been published by Acoustics. More information can be found here.

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Juvenal Ormachea Successfully Defends his PhD Thesis

January 21, 2020

Congratulations to Juvenal Ormachea who successfully defended his PhD thesis titled “Viscoelastic Tissue Characterization Based on Harmonic and Transient Shear Wave Elastography.”  Juvenal's public defense took place on Tuesday, January 21, 2020, immediately followed by a closed-door defense session.  Juvenal has been supervised by Professor Kevin Parker.  His PhD committee was chaired by Professor Jong Hoon Nam (Mechanical Engineering), and included Professors Marvin Doyley (Electrical & Computer Engineering) and Steve McAleavey (Biomedical Engineering).  Again, congratulations to Juvenal and many thanks for his hard work and significant contributions to Professor Parker's Medial Imaging Research Group.  The Group is fortunate that Juvenal has chosen to stay on as a Postdoctoral Research Associate, we look forward to his continuing efforts!

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