Current Trainees

Pooja Gaur
mentor: Kim Butts Pauly

Pooja earned her BS in Biomedical Engineering at the Johns Hopkins University, and her PhD at Vanderbilt University under the mentorship of Dr. William Grissom. During her doctoral research, she developed MRI methods for measuring temperature changes in the body during focused ultrasound heating treatments. These developments enabled faster measurements by leveraging data undersampling, and more accurate measurements by compensating for MR image distortions that result directly from heating. As a postdoctoral scholar under the guidance of Dr. Kim Butts Pauly, Dr. Gaur will use imaging methods to investigate the intracranial pressure produced by focused ultrasound during tumor ablation and chemotherapy drug delivery treatments for the brain.

Joshua de Bever 
mentors: Brian Rutt and Sam Gambhir

Joshua de Bever earned a BS (honors) with a double major in Physics and Computer Science in 2005 and an MS in Physics in 2007 from the University of Western Ontario. While completing his Master’s degree, he designed and fabricated high performance MRI gradient coils. Dr. de Bever earned his PhD from the University of Utah where he performed research in Medical Robotics as part of the MR-guided focused ultrasound group. With this team, Dr. de Bever helped bring a focused ultrasound device for treating breast cancer to clinical trials. His dissertation research included the development of a novel adaptive model-predictive controller for thermal ablation of cancer using focused ultrasound and MR temperature imaging feedback, as well as multiple 3D MR acoustic radiation force imaging techniques. Dr. de Bever will be a postdoctoral scholar in Professor Brian Rutt’s laboratory and is pursuing research into thermal cancer therapies in a high-field MRI environment.

Hamed Arami 
mentors: Sam Gambhir and Robert Sinclair

Hamed Arami received his Dual PhD in December, 2015 in Materials Science and Engineering (MSE) and Nanotechnology and Molecular Engineering (NTME) from the University of Washington. His research interests are development of advanced biomaterials (nanoparticles, hydrogels and scaffolds) for biomedical imaging, targeted therapy, tissue engineering and regenerative medicine. His PhD research was aimed at the development of multifunctional nanoparticle tracers for a new imaging technique called Magnetic Particle Imaging (MPI) and their applications in cancer diagnosis and cardiovascular imaging. Combining MPI with other imaging modalities, such as Magnetic Resonance Imaging (MRI) and Near Infra-Red Fluorescent (NIRF) imaging, he also studied immune response, pharmacokinetics and biodistribution of these nanoparticles and developed chemical approaches to prolong the blood circulation half-life of the MPI tracers in animal models. During his SCIT fellowship, he will work in Prof. Gambhir’s lab to study the role of cancer stem cells on tumors drug resistance and recurrence using intravital microscopy. He also uses iron oxide nanoparticles for targeted differentiation therapy of the cancer stem cells and uses magnetic and fluorescent imaging techniques to track the nanoparticles in animal models.

Subashini Srinivasan 
mentors: Brian Hargreaves and Bruce Daniel
(9/1/2015 - 8/31/2017)

Dr. Srinivasan is a post-doctoral fellow in Dr. Brain Hargreaves’ lab in the Department of Radiology at Stanford University. Her current research projects are focussed on improving the specificity of breast cancer detection using pharmaco-kinectic modeling and MR guided augmented reality for breast conserving surgery. 

Suba earned her PhD in Biomedical Engineering at University of California, Los Angeles. Her PhD thesis developed novel variable flip angle balanced SSFP techniques for fast 3D T2 weighted prostate MRI as well as to reduce the SAR of free-breathing cardiac cine imaging. Suba was previously a Research Intern at Siemens Corporate Research, where she developed an MRI pulse sequence for real-time, low specific absorption rate, off-resonance insensitive T2 weighted imaging. Suba received her Master of Science in Biomedical Engineering from ETH Zurich. For her Master's thesis, Suba developed a novel 3D black blood imaging technique for better visualization of the cardiac chambers at Harvard Medical School (BIDMC). Her research interests include physics, imaging, and reconstruction techniques of Magnetic Resonance Imaging (MRI).

Siavash Yousefi
mentors: Lei Xing and Juergen Willmann
(9/1/2015 - 8/31/2017)

Dr. Yousefi received his BS, MSc and PhD all in electrical engineering from University of Tehran (2006), Oregon State University (2008) and University of Washington (2014), respectively. His research was conducted in the field of Optical Coherence Tomography (OCT) imaging where he developed tools for cellular-level imaging of microcirculatory environment in vivo. He also earned certificate degrees in Medical Imaging (Radiology) and Technology Entrepreneurship (Foster School of Business) from University of Washington.
Since September 2014, he has been a postdoctoral research fellow in the Medical Physics branch of Stanford Radiation Oncology working with professor Lei Xing. He is currently conducting research in the early cancer diagnosis and image guided cancer therapy monitoring. At Stanford Cancer Imaging Training (SCIT) program, he will be conducting research to develop acoustic range verification technique for localization of the Bragg peak during proton beam cancer therapy.