


Imaging Cores
The Imaging Cores are managed by the Office for Research, Innovation & Impact. Our mission is to provide the University community access to cutting edge instrumentation and experienced personnel to assist and facilitate research on campus.
Researchers:
MARLEY

Patricia Jansma
Patty Jansma has a BS degree from Penn State and MS degree from University of Georgia. She has 35+ years experience in life science research light and electron microscopy. She currently manages the 2 new Zeiss 880 laser scanning confocal microscopes located in the basement of Marley building. She also supports the ancillary equipment for microscopy sample preparation including a tissue culture facility.
Patty trains faculty, staff and students in the proper use of the microscopes. She also helps facility researchers with sample preparation techniques and troubleshooting of sample preparation protocols.
Patty is active in the Microscopy Society of America and Arizona Imaging and Microanalysis Society. She is interested in developing sample preparation methods for confocal microscopy as well as methods for correlative light and electron microscopy.
LIFE SCIENCES NORTH
Paula Tonino
Dr. Tonino has decades of biological electron microscopy experience.
Doug Cromey
Mr. Cromey has 40 years of hands-on experience with clinical and research microscopy. He is a Certified Electron Microscopy Technologist (MSA) and has attended a number of national level microscopy and image analysis workshops and courses.
Mr. Cromey's responsibilities at the University are many and he wears many hats. He is the Co-Director of the NIEHS (P30) funded SWEHSC Cellular Imaging Facility Core, and the manager of the RII Imaging Core's Zeiss ELYRA S1 (SR-SIM) Super Resolution Microscope. He is also the main point of contact for the Leica DMI6000 multifunction motorized inverted microscope and the image analysis workstation located in Life Sciences North. He is cross-trained on the Imaging Core - Marley instruments and helps out there one morning a week. He serves as the developer/site administrator for the UA Microscopy Alliance website, which is "A collaborative effort to bring information about shared microscopy facilities to the University of Arizona and the community".
Mr. Cromey is actively involved in training users on specific instruments and assisting them with their research questions. He has created a collection of web pages that are educational resources about different types of microscopy, written a number of handouts that are available online, spoken at local workshops & national meetings on the topic of digital imaging ethics, and much more.
BIOSCIENCES RESEARCH LABORATORY | Translational Bioimaging Resource

Scott Squire
Mr. Squire was employed by Diagnostic Radiology at University Medical Center, with involvement in every aspect of patient imaging, on G.E. MRI .5, 1.5, and 3.0 Tesla instruments, as well as Siemens, Toshiba, Picker, and G.E. CT machines. This included acquiring images, filming and processing, preparing and injecting contrasting agents, and data management as well as supply inventory. Phlebotomy trained by UMC department of pathology, and qualified for veni-puncture and specimen collection on adults and pediatrics. Also experienced in obtaining bleeding times, preparation of sterile instruments and supplies, as well as sterile technique with surgical trays for interventional procedures.
Since July of 2003, Mr. Squire have been employed by the U of A Department of Medical Imaging as the MRI Research Specialist. His current duties include developing study protocols, acquiring image data, processing, analysis, secure transmission of collected data, and pulse sequence development. Supervising graduate student studies. Teaching and training MRI instrument operation and safety, quality control, and regulatory certification. Collaboration and consultation with development of MRI specific physiological data acquisition. Implementation of newly developed MRI with EEG technology. Also transitional training of clinical staff to facilitate correct application of advanced imaging techniques.
Christine Howison
Ms. Howison has a masters degree from University of Missouri-Columbia and is currently the director of Preclinical Imaging for the Contrast Agent Molecular Engineering Laboratory. She can help with arranging all aspects of preclinical animal work, protocol generation, and compliance.
Russell Witte
Professor Witte received a BS degree in physics (1993) from the University of Arizona and a PhD in bioengineering (2002) from Arizona State University. He spent several years at the University of Michigan, Ann Arbor in the Biomedical Ultrasonics Laboratory where he helped develop several novel ultrasound imaging techniques, such as photoacoustic, thermoacoustic, and acoustoelectric imaging. Professor Witte is currently Associate Professor (Medical Imaging, Optical Sciences, Biomedical Engineering) at the University of Arizona. His Experimental Ultrasound and Neural Imaging Laboratory develops new imaging tools and techniques that employ a combination of light, sound, and radio frequencies that convey novel contrast deep in tissue. The technology is translational and potentially impacts a variety of medical disorders ranging from epilepsy and arrhythmia to breast cancer.