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Gia Jadick

PhD Candidate @ UChicago

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About Me

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Hello! I’m Gia Jadick. I am a medical physics PhD candidate at the University of Chicago, where I research novel x-ray imaging techniques in the lab of Patrick La Rivière. Currently, I am focused on x-ray and CT imaging with propagation-based phase contrast. My goal is to develop a quantitative solution to the spectral phase retrieval problem, which would broadly benefit biomedical researchers seeking a convenient, micron-resolution, 3-D modality for soft-tissue imaging.

I graduated cum laude from Duke University in 2020 with my BS in physics and BA in political science. There, I researched mechanosensing of E. Coli bacteria, vintage saxophone mouthpiece acoustics, and the physics of realistic CT simulation.

All of my research code (and more!) is publicly available on Github for anyone to use and build upon. I've linked some key repositories in the "Research" section below. My PhD studies are funded by the National Science Foundation's Graduate Research Fellowship Program. I anticipate graduating in spring of 2026.

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Ongoing Research Projects

X-ray phase contrast

MV-kV dual energy imaging

We are exploring the potential utility of spectral x-ray imaging with propagation-based phase contrast. I've developed an estimation theory approach to compare spectral and multi-distance phase-contrast imaging techniques in the context of basis material decomposition. I am also assessing the limits of traditional approximations made in XPCI forward models.

Multi-material decomposition

Figure of the multi-material decomposition method.

Dual-energy CT

MV-kV dual-energy imaging on the cover of JMI.

We assessed a novel dual-energy CT approach: combining a megavoltage (MV) and kilovoltage (kV) source in "MV-kV" imaging for use on radiotherapy systems that are conveniently already equipped with the two x-ray sources. Our publication was featured on the cover of JMI.

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Publications & Presentations

[1] G. Jadick, G. Schlafly, and P. La Rivière, “Dual-energy computed tomography imaging with megavoltage and kilovoltage X-ray spectra,” Journal of Medical Imaging, vol. 11, no. 2, pp. 023501–023501, 2024.

[2] G. Jadick and P. La Rivière, “Cramér–Rao lower bound in the context of spectral X-ray imaging with propagation-based phase contrast,” in Medical Imaging 2024: Physics of Medical Imaging, 2024, vol. 12925.

[3] G. Jadick, I. Reiser, and P. La Rivière, “Sensitivity analysis of dual-energy computed tomography multi-triplet material decomposition,” in Medical Imaging 2024: Physics of Medical Imaging, 2024, vol. 12925.

[4] H. DeBrosse, G. Jadick, L. Meng, and P. La Rivière, “Comparing x-ray fluorescence emission tomography and computed tomography: contrast-to-noise ratios in a numerical mouse phantom,” in Medical Imaging 2024: Clinical and Biomedical Imaging, 2024, vol. 12930.

[5] M. Ventura, G. Jadick, and P. La Rivière, “Comparison of energy-integrating detectors and photon-counting detectors for MV-kV dual-energy imaging on a tomographic therapy system,” in Medical Imaging 2024: Physics of Medical Imaging, 2024, vol. 12925.

[6] G. Jadick and P. La Rivière, “Dual energy CT imaging with a megavoltage spectrum.” American Association of Physicists in Medicine, Midwest Chapter Meeting, 2023.

[7] E. Abadi, G. Jadick, D. A. Lynch, W. P. Segars, and E. Samei, “Emphysema quantifications with CT scan: Assessing the effects of acquisition protocols and imaging parameters using virtual imaging trials,” Chest, vol. 163, no. 5, pp. 1084–1100, 2023.

[8] G. Jadick and P. La Rivière, “Optimization of MV-kV dual-energy CT imaging for tomographic therapy,” in Medical Imaging 2023: Physics of Medical Imaging, 2023, vol. 12463, pp. 557–566.

[9] F. Ria, G. Jadick, E. Abadi, J. B. Solomon, and E. Samei, “Comparing two different noise magnitude estimation methods in CT using virtual imaging trials,” in Medical Imaging 2022: Physics of Medical Imaging, 2022, vol. 12031, pp. 729–734.

[10] S. Shankar, G. Jadick, E. Hoffman et al., “Scanner-specific validation of a CT simulator using a COPD-emulated anthropomorphic phantom,” in Medical Imaging 2022: Physics of Medical Imaging, 2022, vol. 12031, pp. 953–960.

[11] E. Abadi, G. Jadick, C. McCabe et al., “Development and Application of a Virtual Imaging Trial Platform to Evaluate and Optimize State-of-the-art Photon-Counting CT.” Radiological Society of North America Annual Meeting, 2021.

[12] E. Abadi, G. Jadick, E. Hoffman, D. Lynch, W. P. Segars, and E. Samei, “COPD quantifications via CT imaging: ascertaining the effects of acquisition protocol using virtual imaging trial,” in Medical Imaging 2021: Physics of Medical Imaging, 2021, vol. 11595, pp. 160–166.

[13] G. Jadick, E. Abadi, B. Harrawood, S. Sharma, W. P. Segars, and E. Samei, “A scanner-specific framework for simulating CT images with tube current modulation,” Physics in Medicine & Biology, vol. 66, no. 18, p. 185010, 2021.

[14] G. Jadick, E. Abadi, B. Harrawood, S. Sharma, W. P. Segars, and E. Samei, “A framework to simulate CT images with tube current modulation,” in Medical Imaging 2021: Physics of Medical Imaging, 2021, vol. 11595, pp. 22–30.

[15] G. Jadick, M. Bartlett, M. Busch, and J. Socolar, “The art and craft of saxophone mouthpiece design.” Fortin Foundation Bass Connections Virtual Showcase, 2020.

[16] G. Jadick, R. Garces, and C. Schmidt, “Physiology of E. Coli bacteria in high external osmotic pressure.” Conference for undergraduate women in physics at the University of Maryland, 2020.

[17] G. Jadick, “Gender representation in science policy: A study of Capitol Hill.” Sigma Pi Sigma Physics Congress in Providence, RI, 2019.

[18] D. Downs, G. Jadick, F. Swaid, S. B. Ross, and A. S. Rosemurgy, “Age and achalasia: how does age affect patient presentation, hospital course, and surgical outcomes?” The American Surgeon, vol. 83, no. 9, pp. 952–961, 2017.

[19] A. Rosemurgy, D. Downs, G. Jadick et al., “Dissatisfaction after laparoscopic Heller myotomy: The truth is easy to swallow,” The American Journal of Surgery, 2017.

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Get in Touch

Contact Me

giavanna [at] uchicago [dot] edu