Invicro specializes in CNS imaging for preclinical, early phase and late phase clinical studies. Our scientific and operational experts design and execute studies that will provide insights needed to bring transformative medicines to patients.

Justin Albani

Senior Director, Imaging Services

Education:  Bachelor's of Science in Natural Science; Nuclear Medicine Technology, Worcester State College

Years of Experience: 11+ years

Location: New Haven, CT


Brian Avants

Ph.D. | Senior Director, Machine Learning

Education: Ph.D. in Bioengineering, University of Pennsylvania

Years of Experience: 20+ years

Location: Boston, MA

As an interdisciplinary scientist with a focus on neuro MR, Dr. Brian Avants has broadly explored the synergies between machine learning, brain mapping and mathematical modeling. Dr. Avants utilizes this expertise in developing computational and algorithmic advances to enhance Invicro’s imaging and data analytics platform.



Lino Becerra

Ph.D. | Vice President, MRI

Education: Ph.D. in Physics, University of Illinois

Years of Experience: 25+ years

Location: Boston, MA

Dr. Lino Becerra serves as Vice President of MRI to further consolidate and expand Invicro's capabilities to support studies utilizing MRI techniques from preclinical to clinical trials. Previously, Dr. Becerra was the Co-Director for The Center for Pain and the Brain at Harvard Medical School as well as being a faculty member for over 20 years. He has worked extensively in neuroimaging applications in neurological conditions. He Co-Founded Descartes Therapeutics Inc., a biotech company that was dedicated to the development of drugs for chronic pain and was Co-Director of the Imaging Consortium for Drug Development, which was formed by Harvard, McLean Hospital, Massachusetts General Hospital, Merck, Eli Lilly and Sepracor Pharmaceuticals.

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David B

David Bonsall

Ph.D. | Biology Team Leader, Discovery Lab
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Karen Briley

Ph.D. | Associate Director, Discovery Research

Education: Ph.D. in Medical Physics, University of Uppsala

Years of Experience: 34+ years

Location: Boston, MA

Dr. Karen Briley has worked in pre-clinical translational imaging for over 30 years. Indication areas include cardiovascular, gastrointestinal, NASH, and other inflammatory diseases.



Cristian Constantinescu

Ph.D. | Associate Director of Translational Research

Education: Ph.D. in Biomedical Engineering, Purdue University

Years of Experience: 14+ years

Location: New Haven, CT

Dr. Cristian Constantinescu has been with Invicro since 2014, serving as Associate Director of Translational Research, specializing in image analysis and kinetic modeling of PET\SPECT data as well as managing image analysis projects in non-human primates and early clinical space.


Hemi Dimant

Ph.D. | Director of Applications

Ph.D. in Biotechnology , Tel-Aviv University

Location: Boston, MA

Years of Experience: 15+ years

Dr. Hemi Dimant  is an expert in molecular imaging for preclinical drug discovery, with extensive experience in designing, managing and supporting drug discovery research for pharma and biotech companies.

Having worked in and with startups and early-stage companies, Dr. Dimant brings value in designing proof-of-concept pilot studies.


Howard Dobson

DV.Sc. | Senior Director, Discovery and Preclinical Services

DV.Sc. in Veterinary Radiology, University of Guelph

Location: Boston, MA

Years of Experience: 44+ years

Dr. Howard Dobson has a broad ranging career in imaging research, both as a clinical veterinary radiologist and has spent the last 15 years in contract research.



Natalie Ertl

Clinical Imaging Research Assistant

Education: M.Sc., University of Bristol

Years of Experience: 3+ years

Location: London, UK

Natalie has recently started a Ph.D. in investigating brain responses in Hypoactive Sexual Desire Disorder (HSDD).


Zhen Fan

Ph.D. | Senior PET Modeller

Education: Ph.D. in PET Modelling and Neuroimaging, Imperial College London

Years of Experience: 10+ years

Location: London, UK

Dr. Zhen Fan works as a PET Modeller at Invicro. Prior to this, she earned her Ph.D. in neuroimaging modelling while working as an imaging data researcher at Imperial College London. Dr. Fan has over 10 years of experience working with PET/MRI imaging analysis in human and preclinical trials. 


Denise Ferraiolo

Senior Vice President, Clinical Operations

Education: Bachelor of Arts in Psychology, Southern CT State University

Years of Experience: 20+ years

Location: New Haven, CT

Ms. Denise Ferraiolo has 20+ years of experience in the clinical imaging space, managing Ph 1-3 clinical imaging trials with a focus in CNS/Neurodegeneration. Specifically, she has spent her career growing with the industry, guiding imaging operations through new innovations.

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Roger Gunn

Ph.D. | Chief Scientific Officer

Education: Ph.D. in Applied Mathematics, Warwick University

Years of Experience:  30+ years

Location: London, UK

Dr. Roger Gunn is an international expert in PET neuroimaging, with 30 years of experience designing and analyzing imaging studies for disease understanding and drug development. Dr. Gunn is also a Professor of Molecular Neuroimaging at Imperial College London and has published over 200 peer-reviewed papers in the field of imaging with an H-Index of 65.


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Edward Hogan

Chief Operating Officer

Education: M.S. in Electrical Engineering, Tufts University

Years of Experience: 28+ years

Location:  Boston, MA

Mr. Edward Hogan has over 28 years of experience in clinical research, managing and executing phase I-IV imaging trials in both the pharmaceutical and CRO space. He brings more than 19 years of experience in managing clinical operations, including extensive experience in building and leading global cross-functional operations teams, including project, image, data and reader management.

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Dustin Kentala

Director, Scientific Services

Education: M.Sc. in Pharmacology, Michigan State University

Years of Experience: 16+ years

Location:  Boston, MA

Mr. Dustin Kentala has been working in the CRO industry for 16 years with 11 years as an imaging scientist, study director, or above specializing in in vivo imaging techniques such as, PET, SPECT and CT. In addition, his graduate research focused on ocular drug delivery and pharmacology with specific experience evaluating AAV-mediated gene delivery for inherited retinal diseases.


Amy Knorr

M.D., Ph.D. | Clinical Research Physician

Education: MD, Ph.D., Yale University School of Medicine

Years of Experience: 25+ years

Location: New Haven, CT

Dr. Amy Knorr is excited to return to research in CNS disorders to make a difference by finding treatments for these conditions.


Phillip Kuo

M.D., Ph.D. | Distinguished Scientist


M.D., Ph.D. University of Virginia

AB Chemistry, Harvard University

Years of Experience: 15+ years 

Location: Boston, MA

Dr. Phillip Kuo was a tenured Professor in the Departments of Medical Imaging, Medicine and Biomedical Engineering at the University of Arizona. Beyond his academic work, Dr. Kuo has vast experience as a consultant, reader and speaker for CROs and pharmaceutical companies.

Dr. Kuo has authored over 100 publications and has received numerous grants covering a diverse range of disciplines. Dr. Kuo received his A.B. from Harvard University, M.D. and Ph.D. from the University of Virginia, completed his Internal Medicine Residency at UCLA Medical Center, Diagnostic Radiology Residency at Yale New Haven Hospital and Nuclear Medicine Fellowship at Yale New Haven Hospital.

At Invicro, he supports the design, performance and analysis of clinical trials and also supports regulatory approval and post-approval activities, such as reader training.


Meghan Pajonas

MBA, BSN RN | Director, Clinic Operations

Jan Passchier

Ph.D. | Executive Vice President, Global Head of Laboratories and Clinics

Education: Ph.D. in PET Radiochemistry, Groningen University

Years of Experience: 20+ years

Location: London, UK

Dr. Jan Passchier is an expert in radiochemistry applied to imaging and drug development. Dr. Passchier completed a Ph.D. in PET radiochemistry from Groningen University prior to moving to GlaxoSmithKline where he worked closely with project teams to identify and develop novel tool compounds for a large variety of CNS, metabolic and respiratory indications.

Dr. Passchier played a significant role in the design and realization of the GlaxoSmithKline Clinical Imaging Centre where he headed the chemistry group. Following the spinout of the centre to Imanova Ltd, now part of Invicro, he took on the overall operational responsibility for the business.

Dr. Passchier has a keen interest and deep understanding of the application of molecular imaging to disease understanding and drug development.

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Ryan Petrulli

Ph.D. | Associate Director, Image Analysis

Education: Ph.D. in Biomedical Engineering, Yale University

Years of Experience: 3+ years

Location:  New Haven, CT


Christophe Plisson

Ph.D. | Head of Preclinical Sciences

Education: Ph.D. in Organic Chemistry, University of Orleans

Years of Experience: 15+ years

Location: London, UK

Dr. Christophe Plisson started working in the field of PET imaging at the University of Emory in 2001. He joined GlaxoSmithKline in 2004 where he worked on PET tool compound discovery and PET chemistry support across the drug development portfolio. He also had an honorary position of assistant professor at the University of Columbia. Dr. Plisson has been with Invicro since 2011 and currently holds the position as Head of Preclinical Services, overseeing R&D PET chemistry and preclinical PET imaging activities.


Eugenii (Ilan) Rabiner

M.D. | Executive Vice President of Translational Applications

Education: MBBCh - University of the Witwatersrand, FCPsych SA - South African College of Psychiatrists

Years of Experience: 30+ years

Location: London, UK

Trained as a psychiatrist, Dr. Ilan Rabiner moved into research in PET imaging and subsequently drug development. He has spent the last 25 years working in the drug development industry and academia.


Gaia Rizzo

Ph.D. | Associate Director, Oncology Image Analysis

Education: Ph.D. in Information Engineering/Specialization in Bioengineering, University of Padova

Years of Experience: 14+ years

Location:  London, UK


David S. Russell

M.D., Ph.D. | Senior Medical Director

Education: M.D., Cornell University Medical College, Ph.D. in Molecular Biology, Cornell, Sloan-Kettering Institute

Years of Experience: 25+ years

Location: New Haven, CT

As the Senior Medical Director, Dr. David S. Russell has been involved in the design and implementation of clinical trials and served as the PI for dozens of trials concerning neurological and non-neurological diseases, as well as with healthy volunteers. He is a neurologist, neurodegenerative diseases specialist, molecular biologist, and former Director of the Yale Neurodegenerative Disorders Clinic.


Nick Sandella

Director | Imaging Services Support

Education: Associates of Applied Science, Nuclear Medicine Technology, Gateway Community Technical College

Years of Experience: 25+ years

Location: New Haven, CT


Christine Sandiego

Ph.D. | Senior Scientist, Translational Research

Education: Ph.D. in Biomedical Engineering, Yale University

Years of Experience: 15+ years

Location: New Haven, CT

Dr. Christine Sandiego has been at Invicro since 2015 with expertise in kinetic modeling and analysis of positron emission tomography (PET) brain data. She is a scientific lead on the translational research team for pre-clinical and early clinical PET studies, helping to support our sponsors’ drug development programs for neurodegenerative diseases.


Graham Searle

Ph.D. | Head of PET Analysis

Education: Ph.D. in Mathematical Modelling, The University of Warwick

Years of Experience: 19+ years

Location: London, UK

Dr. Graham Searle has over 15 years of experience in the development and application of mathematical models for human imaging data. His career has focused on the use of PET imaging in drug development, and the development and implementation of tools for PET data analysis within the context of the pharmaceutical industry.


Rachel Stewart

Ph.D. | Senior Director, Discovery Research

Education: Ph.D. in Biomedical Engineering, Boston University

Years of Experience: 8+ years

Location: Boston, MA

Dr. Rachel Stewart's background is in musculoskeletal and rare disease imaging and orthopedic biomechanics.

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Renee Tschopp

M.S. | Senior Director, Project Management and Operations

Matt Wall

Ph.D. | Senior Imaging Scientist

Education: Ph.D. in Cognitive and Brain Sciences, University of Cambridge

Years of Experience: 20+ years

Location: London, UK

Dr. Matt Wall earned his Ph.D.  in Psychology with a post-doctoral focus in psychophysics. Dr. Wall's day-to-day work blends neuroscience and MRI methodology, with a specialty in pharmacology. 


Xue Wang

Ph.D. | Senior Scientist, MRI

Education: Ph.D. in Biomedical Engineering, University of Kentucky

Years of Experience: 15+ years

Location: Boston, MA




Lisa Wells

Ph.D. | Head of CNS Discovery Operations

Education: Ph.D. in Neuropharmacology, University of Surrey

Years of Experience: 15+ years

Location: London, UK

After studying in the fields of Medical Biochemistry and Neuropharmacology, Dr. Lisa Wells left academia to join the field of nuclear imaging, taking a role at GSK's Clinical Imaging Center. Later transitioning to Head of Biology at Imanova, Dr. Wells now uses her knowledge of the pharmaceutical industry to lead the global discovery CNS Applications at Invicro.

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Alex Whittington

Alex Whittington

Ph.D. | Associate Director, IQ Analytics
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Gary Wisniewski

Director, Image Science

Ken Zasadny

Ph.D. | Director, Research Programs & Translational Imaging

Education: Ph.D. in Nuclear Engineering, University of Michigan

Years of Experience: 31+ years

Location: Boston, MA

Dr. Ken Zasadny has a mix of academia and pharmaceutical industry experience. His career focus has been on quantitative molecular imaging by PET and SPECT for diagnostic and therapeutic applications.