About

Eujin Park is an Assistant Professor at the Graduate School of Education at Stanford University. Her research draws upon critical theories of racialization, Asian American Studies, and community engaged research to examine how Asian American families negotiate with race in and through educational institutions. She recently conducted an ethnographic investigation of community-based educational spaces in the Chicago-area Asian American community, highlighting the role of community spaces in youths’ educational experiences and understandings of racializing discourses. Dr. Park has published and presented her work in multiple academic venues and applies her research in her work with Asian American and other youth of color in community-based organizations. She earned her Ph.D. in Educational Policy Studies from the University of Wisconsin-Madison, with a concentration in Social Sciences and a Minor in Qualitative Methods, and holds an M.A. from UW-Madison and a B.A. from the University of California, Berkeley. Prior to her current position, she was an IDEAL Provostial Fellow at Stanford University and a Postdoctoral Research Associate at the Institute for Research on Race and Public Policy at the University of Illinois-Chicago.

Research topics

• Medicine
• Radiology
• Artificial Intelligence
• Nuclear medicine
• Computer Science
• Biomedical engineering
• Internal medicine
• Optics
• Pathology
• Medical physics

Selected publications

• 3D photoacoustic and ultrasound system with large field-of-view: development and application in extremity imaging

  2026-03-04

  article
  PublisherDOI

• Ultrasonic modulation of brain glymphatic transport: from observations to theranostic applications

  Cancer Drug Resistance · 2026-04-21

  articleOpen accessSenior author

  The glymphatic system in the brain controls the cerebrospinal fluid (CSF) circulation and metabolic waste clearance, which is crucial for understanding the mechanisms and therapeutic opportunities of various brain pathologies. With the rapidly growing interest in its relationship with neurodegenerative conditions, including Alzheimer's disease, its underlying processes are still not fully understood and remain under active investigation. A representative finding is that the glymphatic flow is passively driven by factors such as vascular pulsation, and studies have been conducted to modulate the glymphatic system using external stimuli to enhance waste clearance or to leverage CSF pathways for delivering chemotherapeutic agents. Particularly, glymphatic flow modulation holds great potential for improving drug delivery to the brain via intrathecal administration as an alternative to conventional systemic delivery, which is restricted by the blood-brain barrier (BBB). This review focuses on ultrasound (US) techniques for glymphatic system modulation, with the aim of augmenting glymphatic flow and ultimately improving drug delivery for brain cancer therapy. Given the limited number of cancer-related studies in the field, we comprehensively review US-based glymphatic modulation research to date and identify their implications and future opportunities for brain cancer applications.

  PublisherDOI

• Review of Linear-Array-Transducer-Based Volumetric Ultrasound Imaging Techniques and Their Biomedical Applications

  Bioengineering · 2025-08-23

  reviewOpen accessCorresponding

  Ultrasound imaging is one of the most widespread biomedical imaging techniques thanks to its advantages such as being non-invasive, portable, non-ionizing, and cost-effective. Ultrasound imaging generally provides two-dimensional cross-sectional images, but the quality and interpretative ability vary based on the experience of the examiner, leading to a lack of objectivity and accuracy. To address these issues, there is a growing demand for three-dimensional ultrasound imaging. Among the various types of transducers used to obtain three-dimensional ultrasound images, this paper focuses on the most standardized probe, the linear array transducer, and provides an overview of the system implementations, imaging results, and applications of volumetric ultrasound imaging from the perspective of scanning methods. Through this comprehensive review, future researchers will gain insights into the advantages and disadvantages of various approaches to three-dimensional imaging systems using linear arrays, providing direction and applicability for system configuration and application.

  PublisherOA PDFDOI

• A three-dimensional photoacoustic and ultrasound automated breast volume scanner (PAUS-ABVS) for breast cancer patients

  Science Advances · 2025-11-26 · 7 citations

  articleOpen access

  Breast cancer screening with mammography is less effective in women with dense breast tissue, prompting the use of ultrasound (US) imaging. While two- (2D) and three-dimensional (3D) US improve cancer detection, their low specificity leads to frequent unnecessary biopsies. Operator dependence on 2D US has led to the development of 3D automated breast volume scanners (ABVS), but challenges remain in distinguishing benign from malignant lesions. We developed a 3D photoacoustic and ultrasound (PAUS)-ABVS system that integrates a large field-of-view, 768-element transducer to improve diagnostic accuracy. In a clinical study of 61 patients with 36 benign and 30 malignant lesions, multispectral photoacoustic imaging was used to measure blood volume and oxygen saturation within lesions. When combined with standard US BI-RADS (breast imaging reporting and data system) scores, the system achieved a sensitivity of 96.7% and specificity of 66.7%. This performance matched the best outcomes of 2D PAUS and outperformed conventional US. Our results suggest that the PAUS-ABVS can support more accurate breast cancer diagnosis while reducing unnecessary biopsies.

  PublisherDOI

• Advancements in photoacoustic detection techniques for biomedical imaging

  npj Acoustics · 2025-03-27 · 25 citations

  articleOpen accessSenior author

  Photoacoustic imaging is a promising modality with potentially broad applications. To achieve high-quality images, an appropriate detection technique suitable for the specific application is crucial. This review categorizes detection technologies into two primary methods: ultrasonic transducers and optical sensing. We present their detection principles and recent progress, from conventional to advanced technologies. We finally conclude by providing a detailed classification, outlining the main characteristics of each technique.

  PublisherOA PDFDOI

• Simultaneous multispectral photoacoustic and ultrasound 3D automated breast scanner for breast cancer detection

  2025-03-20

  article
  PublisherDOI

• Large aperture imaging, from multi-array prototype to imaging device

  2024-04-01

  article

  Large apertures capable of real-time acquisition can offer increased field of view, enhanced imaging performances and reduced operator dependence. In this work, we are trying to bridge the gap between standard ultrasound and tomography by developing large apertures capable of real time imaging and blow flow characterization (Doppler). In the context of breast imaging, we are pursuing the development of a 2.5 MHz 1024-element half-ring geometry (200 mm diameter) to scan the entire breast in a few seconds with dry coupling (i.e. no water bath). The array is interfaced with a 1024 channels ultrasound platform (Verasonics) with a dedicated GPU processing pipeline.

  PublisherDOI

• Monitoring a tumor-targeting BODIPY-based theranostic nanomaterial with photoacoustic imaging

  2023-01-26

  article

  Photoacoustic imaging has begun to be widely used to observe drug delivery and accumulation in the body. Theranostic, which includes both diagnosis and therapy, is an attractive approach for treating cancer. In this study, we synthesized nanomaterials and verified the theranostic effect through fluorescence and photoacoustic imaging. Selectively transporting a drug to the tumor site is essential to increase the therapeutic effect while reducing side effects. BODIPY has the advantages of being able to change its structure more easily, good photostability, good biocompatibility and high absorption coefficient than cyanine or porphyrin dyes, however they are limited to in vivo experiment due to their poor water solubility. We overcome the limitations of BODIPY-based materials by encapsulating in micellar nanoparticles with Hexa BODIPY cyclophosphazene (HBCP) and DSPE-PEG2000 polymer. HBCP NPs also have a property of selectively accumulating in tumors with enhanced permeability and retention effect due to their bulky nano-size molecular structure. We checked the tumor targeting and retention time of HBCP NPs by monitoring them with fluorescence imaging. In addition, the high heat conversion efficiency of HBCP NPs enables photoacoustic imaging and Photothermal therapy. We also conducted whole body scanning of tail-vein injected tumor-bearing mice with acoustic resolution photoacoustic microscopy system to provide tumor accumulation information of HBCP NP with vascular structure. The result suggests that HBCP NP has a potential to be used as a material for image guided phototherapy.

  PublisherDOI

• Optical Breast Imaging: A Review of Physical Principles, Technologies, and Clinical Applications

  Journal of Breast Imaging · 2023-09-01 · 14 citations

  reviewOpen access

  Optical imaging involves the propagation of light through tissue. Current optical breast imaging technologies, including diffuse optical spectroscopy, diffuse optical tomography, and photoacoustic imaging, capitalize on the selective absorption of light in the near-infrared spectrum by deoxygenated and oxygenated hemoglobin. They provide information on the morphological and functional characteristics of different tissues based on their varied interactions with light, including physiologic information on lesion vascular content and anatomic information on tissue vascularity. Fluorescent contrast agents, such as indocyanine green, are used to visualize specific tissues, molecules, or proteins depending on how and where the agent accumulates. In this review, we describe the physical principles, spectrum of technologies, and clinical applications of the most common optical systems currently being used or developed for breast imaging. Most notably, US co-registered photoacoustic imaging and US-guided diffuse optical tomography have demonstrated efficacy in differentiating benign from malignant breast masses, thereby improving the specificity of diagnostic imaging. Diffuse optical tomography and diffuse optical spectroscopy have shown promise in assessing treatment response to preoperative systemic therapy, and photoacoustic imaging and diffuse optical tomography may help predict tumor phenotype. Lastly, fluorescent imaging using indocyanine green dye performs comparably to radioisotope mapping of sentinel lymph nodes and appears to improve the outcomes of autologous tissue flap breast reconstruction.

  PublisherOA PDFDOI

• Supplementary Data from Multiparametric Photoacoustic Analysis of Human Thyroid Cancers <i>In Vivo</i>

  2023-03-31

  preprintOpen access

  <p>Supplementary figures 1-18 and tables 1-7</p>

  PublisherDOI

Frequent coauthors

• Chulhong Kim

  Pohang University of Science and Technology

  40 shared

• Wonseok Choi

  26 shared

• Byullee Park

  20 shared

• Jeesu Kim

  19 shared

• Ravi Managuli

  University of Washington

  12 shared

• Dong‐Jun Lim

  Catholic University of Korea

  10 shared

• Idan Steinberg

  Stanford University

  10 shared

• Jeonghoon Ha

  Catholic University of Korea

  10 shared

Education

• Ph.D., Educational Policy Studies

  University of Wisconsin-Madison

• M.A.

  University of Wisconsin-Madison

• B.A.

  University of California, Berkeley

Awards & honors

• IDEAL Provostial Fellow