Tag Archives: Siewerdsen

Dr. Nick Theodore, Co-Director for the Carnegie Center for Surgical Innovation

The I-STAR Lab welcomes Dr. Nick Theodore as Co-Director for the Carnegie Center for Surgical Innovation. Dr. Theodore is the Donlin M. Long Professor of Neurosurgery at Johns Hopkins University and directs the Johns Hopkins Neurosurgical Spine Center. An internationally … Continue reading

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

Imaging for Safer Surgery – Michael Ketcha’s Algorithm for Targeting the Deformed Spine

A recent paper by Michael Ketcha and coauthors at the I-STAR Lab reports a method for accurately targeting vertebrae in surgery under conditions of strong spinal deformation. Previous research showed a method by which target vertebrae defined in preoperative CT … Continue reading

Alisa Brown – a STAR at the I-STAR Lab

Alisa Brown was awarded a STAR (Summer Training and Research) Program scholarship for her research on the development of new rigid-body marker designs for surgical tracking and navigation. Alisa began research at the I-STAR Lab in 2016 using 3D printing … Continue reading