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Author profile
Xinhua Li, PhD
Cedars-Sinai Medical Center
Contrast-Dependent Decrease In Task-Transfer Function Area with Strength of Iterative Reconstruction and Deep Learning In Low-Contrast Lesions
Iterative and deep learning image reconstruction (IR and DLIR) are valuable for reducing dose in modern CT but have the effect of reducing lesion edge sharpness. If sharpness loss becomes contrast dependent at some threshold, the decrease in sharpness may exc...
Poster Program · Diagnostic and Interventional Radiology Physics
CT Number Accuracy of Virtual Monoenergetic Images In Photon-Counting CT: Implications for Iodine, Iron, and Fat Quantification
To systematically evaluate CT number accuracy on virtual monoenergetic images (VMIs) generated by a clinical photon-counting CT (PCCT) system using projection-domain multi-material modeling with a water/iodine basis.
Poster Program · Diagnostic and Interventional Radiology Physics
Impact of Pitch Selection on Coronary Artery Calcium Scores In Lung Cancer Screening CT
Opportunistic coronary artery calcium (CAC) assessment from lung cancer screening (LCS) CT can broaden cardiovascular risk stratification, but cardiac motion and acquisition settings may impact the calcium score. This study quantifies the impact of helical pi...
Poster Program · Diagnostic and Interventional Radiology Physics
Leveraging Dose Tracking Software to Monitor CT Repeat Rates: A Multi-Protocol Analysis
To utilize data from a dose tracking software to retrospectively track repeat rates for frequently used CT exams
Poster Program · Diagnostic and Interventional Radiology Physics
Liver Fat Quantification In Medium and Large Phantoms: Photon-Counting CT Vs Dual-Energy CT Virtual Monoenergetic Imaging
To evaluate the relationship between fat volume fraction (FVF) and Hounsfield units (HU) in unenhanced fatty lesions and to identify virtual monochromatic imaging (VMI) settings that minimize FVF quantification errors, by comparing photon-counting CT (PCCT) w...
Poster Program · Diagnostic and Interventional Radiology Physics
Optimizing Coronary CT Angiography: Impact of Tailored Protocols on Radiation Dose, Image Quality, and Patient Eligibility
To create user-friendly, size and heart condition-specific protocols to improve coronary CT angiography (CCTA) image quality, reduce dose, and expand eligibility to patients with contraindications due to heart activity.
Poster Program · Diagnostic and Interventional Radiology Physics