Huy Gia Dinh

All Publications

• Long-term Career Outcomes and Associations With Academic Careers, Leadership, and Publication Volume After Hand Fellowship. Hand (New York, N.Y.) Smith, G. B., Titan, A. L., Nguyen, H. B., Siddiqi, U. A., Dinh, H. G., Quint, M., Pham, N. S., Kenney, D. E., Young, B., Green, A., Ladd, A. L. 2026: 15589447261480193

  Abstract

  We aimed to characterize career outcomes among fellowship-trained hand surgeons in the United States with a focus on academic careers and factors associated with leadership roles and post-fellowship publication volume.Of 94 programs in the American Society for Surgery of the Hand directory, 24 had publicly available online data for graduates between 2010 and 2019. We defined academic surgeons as current faculty within university-affiliated departments. Leadership roles included departmental/practice, education, or residency/fellowship positions. Bivariate tests and multivariable mixed-effects negative binomial and logistic regression were used to identify associations with career and publication outcomes.Of 508 graduates, 394 (79.9%) were men, and 393 (77.4%) graduated from an orthopedic surgery residency program. Of these, 25.9% became academic hand surgeons, of whom 26.2% were women, and 18.2% held leadership roles, of whom 30.7% were women. Being a woman, completing integrated plastic surgery residency compared with orthopedic surgery or general surgery, and increased publication volume by the end of fellowship were associated with working in academic surgery. Being a woman, increased years since graduating fellowship, graduating from a fellowship in the Midwest compared with the West, and increased publication volume by the end of fellowship were associated with having a leadership role.We identified several factors associated with academic careers and leadership roles in hand surgery. Future qualitative studies on modifiable factors, such as mentorship, training program infrastructure, and individual surgeon goals, are required to better understand ways to support trainees who want to pursue academia, leadership roles, and publications.

  View details for DOI 10.1177/15589447261480193

  View details for PubMedID 42728828

• Proof of Concept and Validation of Single-Camera AI-Assisted Live Thumb Motion Capture. Sensors (Basel, Switzerland) Dinh, H. G., Zhou, J. Y., Benmira, A., Kenney, D. E., Ladd, A. L. 2025; 25 (15)

  Abstract

  Motion analysis can be useful for multiplanar analysis of hand kinematics. The carpometacarpal (CMC) joint has been traditionally difficult to capture with surface-based motion analysis but is the most commonly arthritic joint of the hand and is of particular clinical interest. Traditional 3D motion capture of the CMC joint using multiple cameras and reflective markers and manual goniometer measurement has been challenging to integrate into clinical workflow. We therefore propose a markerless single-camera artificial intelligence (AI)-assisted motion capture method to provide real-time estimation of clinically relevant parameters. Our study enrolled five healthy subjects, two male and three female. Fourteen clinical parameters were extracted from thumb interphalangeal (IP), metacarpal phalangeal (MP), and CMC joint motions using manual goniometry and live motion capture with the Google AI MediaPipe Hands landmarker model. Motion capture measurements were assessed for accuracy, precision, and correlation with manual goniometry. Motion capture demonstrated sufficient accuracy in 11 and precision in all 14 parameters, with mean error of -2.13 ± 2.81° (95% confidence interval [CI]: -5.31, 1.05). Strong agreement was observed between both modalities across all subjects, with a combined Pearson correlation coefficient of 0.97 (p < 0.001) and an intraclass correlation coefficient of 0.97 (p < 0.001). The results suggest AI-assisted live motion capture can be an accurate and practical thumb assessment tool, particularly in virtual patient encounters, for enhanced range of motion (ROM) analysis.

  View details for DOI 10.3390/s25154633

  View details for PubMedID 40807797

• Examining The Utility Of 2D DSA For Carotid Stenosis Hemodynamic Pressure Analysis Dinh, H., Szeder, V., Vinuela, F., Chien, A. LIPPINCOTT WILLIAMS & WILKINS. 2023

  View details for DOI 10.1161/str.54.suppl_1.WP159

  View details for Web of Science ID 000992453800728

• Image-derived Metrics Quantifying Hemodynamic Instability Predicted Growth of Unruptured Intracranial Aneurysms. Stroke (Hoboken, N.J.) Yang, H. H., Sayre, J., Dinh, H., Nael, K., Colby, G., Wang, A., Villablanca, P., Salamon, N., Chien, A. 2023; 3 (1)

  Abstract

  While image-derived predictors of intracranial aneurysm (IA) rupture have been well-explored, current understanding of IA growth is limited. Pulsatility index (PI) and wall shear stress pulsatility index (WSSPI) are important metrics measuring temporal hemodynamic instability. However, they have not been investigated in IA growth research. The present study seeks to verify reliable predictors of IA growth with comparative analyses of several important morphological and hemodynamic metrics between stable and growing cases among a group of unruptured IAs.Using 3D images, vascular models of 16 stable and 20 growing cases were constructed and verified using Geodesic techniques. With an overall mean follow-up period of 25 months, cases exhibiting a 10% or higher increase in diameter were considered growing. Patient-specific, pulsatile simulations were performed, and hemodynamic calculations were computed at 5 important regions of each aneurysm (inflow artery, aneurysm neck, body, dome, and outflow artery). Index values were compared between growing and stable IAs using ANCOVA controlling for aneurysm diameter. Stepwise multiple logistic regression and ROC analyses were conducted to investigate predictive models of IA growth.Compared to stable IAs, growing IAs exhibited significantly higher intrasaccular PI, intrasaccular WSSPI, intrasaccular spatial flow rate deviation, and intrasaccular spatial wall shear stress (WSS) deviation. Stepwise logistic regression analysis revealed a significant predictive model involving PI at aneurysm body, WSSPI at inflow artery, and WSSPI at aneurysm body.Our results showed that high degree of hemodynamic variations within IAs is linked to growth, even after controlling for morphological parameters. Further, evaluation of PI in conjunction with WSSPI yielded a highly accurate predictive model of IA growth. Upon validation in future cohorts, these metrics may aid in early identification of IA growth and current understanding of IA remodeling mechanism.

  View details for DOI 10.1161/svin.122.000426

  View details for PubMedID 37090136

  View details for PubMedCentralID PMC10118203

• Reconstruction of carotid stenosis hemodynamics based on guidewire pressure data and computational modeling MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING Dinh, H., Vinuela, F., Szeder, V., Khatibi, K., Mejia, L., Chien, A. 2022; 60 (5): 1253-1268

  Abstract

  A comparative analysis between intravascular guidewire-obtained and computational fluid dynamic (CFD) flow velocity and pressure data using simplified carotid stenosis models was performed. This information was used to evaluate the viability of using guidewire pressure data to provide inlet conditions for CFD flow, and to study the relationship between stenotic length and hemodynamic behavior. Carotid stenosis models differing in diameter and length were prepared and connected to a vascular pulsatile flow simulator. Time-dependent flow velocity and pressure measurements were taken by microcatheter guidewires and compared with CFD data. Guidewire and CFD-generated pressure profiles matched closely in all measurement locations. The guidewire was unable to reliably measure flow velocity at areas associated with higher CFD flow velocities (r = 0.92). CFD results showed that an increased length of stenosis generated expansive regions of elevated wall shear stress (WSS) within and distal to the stenosis. Low WSS was found immediately outside the stenosis outlet. An increase in stenotic length produced higher flow velocities with minimal lengthening of the distal high velocity flow jet due to faster dissipation of translational kinetic energy through turbulence. We found the accuracy of guidewire-obtained velocity measurements is limited to regions unaffected by disturbed flow. WSS and turbulence behavior distal to the stenosis may be important markers to evaluate the severity of atherosclerotic progression as a function of stenotic length.

  View details for DOI 10.1007/s11517-021-02463-2

  View details for Web of Science ID 000777363500002

  View details for PubMedID 35359199

  View details for PubMedCentralID PMC9036983

• Computational Hemodynamic Analysis Of Intra-Aneurysmal Effects Due To Flow Diverter Stent Deployment Conformation Dinh Huy, Chien Aichi LIPPINCOTT WILLIAMS & WILKINS. 2022

  View details for DOI 10.1161/str.53.suppl_1.TMP6

  View details for Web of Science ID 000788100600178

• Cerebral Blood Flow Analysis Using Flow Wire Measurements and CFD Analysis Chien, A., Dinh Huy, Szeder, V., Vinuela, F. LIPPINCOTT WILLIAMS & WILKINS. 2021

  View details for DOI 10.1161/str.52.suppl_1.P531

  View details for Web of Science ID 000670883500646

• A Novel Method for Modeling Flow in Cerebral Vasculature Diagnostics. Dinh, H. LIPPINCOTT WILLIAMS & WILKINS. 2021

  View details for DOI 10.1161/str.52.suppl_1.P304

  View details for Web of Science ID 000670883500421

• A physical phantom for amine chemical exchange saturation transfer (CEST) MRI MAGNETIC RESONANCE MATERIALS IN PHYSICS BIOLOGY AND MEDICINE Yao, J., Wang, C., Raymond, C., Bergstrom, B., Chen, X., Das, K., Dinh, H., Kim, Z. S., Le, A. N., Lim, M. W. J., Pham, J. A. N., Prusan, J. D., Rao, S. S., Nathanson, D. A., Ellingson, B. M. 2021; 34 (4): 569-580

  View details for DOI 10.1007/s10334-020-00902-z

  View details for Web of Science ID 000610503100002

  View details for PubMedID 33484366