Tag Archives: image quality

Image Registration Performance and Image Quality: Ketcha’s Model Provides a Link

Intuitively, the task of registering two images (for example, aligning a preoperative CT image with an intraoperative radiograph or cone-beam CT) must depend on the quality of the images. And it stands to reason that the accuracy of registration will … Continue reading

Motion Correction for High-Resolution Cone-Beam CT: Paper by Sisniega et al.

A paper published by Dr. Alejandro Sisniega (Research Associate, Department of Biomedical Engineering) and colleagues at the I-STAR Lab describes a new method for correcting patient motion in cone-beam CT (CBCT). Because CBCT often involves scan times >10 sec (for … Continue reading

Zbijewski Leads New Program for Imaging of Bone Health

No bones about it: Dr. Wojciech Zbijewski‘s research is breaking new ground in imaging technology and advancing the clinical understanding of conditions affecting the bones and joints. Dr. Z (“Wojtek”) and his team are developing new imaging methods that break … Continue reading

Task-Driven CT: Paper by Grace Gang in Phys Med Biol.

A paper published this month in the journal of Physics in Medicine and Biology reports a method that “takes imaging physics to task” to improve CT image quality and reduce dose. Grace Gang and coauthors Jeff Siewerdsen and Web Stayman … Continue reading

Hao Dang Earns PhD in Biomedical Engineering

Hao Dang earned his Ph.D. from Johns Hopkins University after successfully defending his dissertation, entitled Model-Based Iterative Reconstruction in Cone-Beam Computed Tomography: Advanced Models of Imaging Physics and Prior Information. His thesis details the development of new model-based iterative reconstruction … Continue reading