@inproceedings{Ma2022,

title = {Non-circular CBCT orbit design and realization on a clinical robotic C-arm for metal artifact reduction},

author = {Yiqun Ma and Grace Gang and Tina Ehtiati and Tess Reynolds and Tom Russ and Wenying Wang and Clifford Weiss and Nick Theodore and Kelvin Hong and Jeffrey H. Siewerdsen and J. Webster Stayman },

url = {https://pubmed.ncbi.nlm.nih.gov/35599746/, https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12034/120340A/Non-circular-CBCT-orbit-design-and-realization-on-a-clinical/10.1117/12.2612448.full},

doi = { 10.1117/12.2612448 },

year  = {2022},

date = {2022-04-04},

booktitle = {SPIE Medical Imaging},

volume = {12034},

keywords = {CBCT, Customized Acquisition, Metal Artifacts, Task-Driven Imaging},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Liu2021,

title = {Quantitative dual-energy imaging in the presence of metal implants using locally constrained model-based decomposition},

author = {Stephen Liu and Jeffrey H. Siewerdsen and J. Webster Stayman and Wojciech Zbijewski},

url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11595/115951C/Quantitative-dual-energy-imaging-in-the-presence-of-metal-implants/10.1117/12.2582277.full},

doi = {10.1117/12.2582277},

year  = {2021},

date = {2021-02-15},

booktitle = {SPIE Medical Imaging},

volume = {11595},

pages = {115951C},

publisher = {International Society for Optics and Photonics},

keywords = {MBIR, Metal Artifacts, Spectral X-ray/CT},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Gang2020b,

title = {Metal-Tolerant Noncircular Orbit Design and Implementation on Robotic C-Arm Systems},

author = {Grace Gang and Tom Russ and Yiqun Ma and Christian Toennes and Jeffrey H. Siewerdsen and Lothar R. Schad and J. Webster Stayman},

url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7643882/},

year  = {2020},

date = {2020-08-01},

booktitle = {International Conference on Image Formation in X-Ray Computed Tomography},

keywords = {Analysis, CBCT, Customized Acquisition, Image Guided Surgery, MBIR, Metal Artifacts, Task-Driven Imaging},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Gang2020,

title = {Non-circular CT orbit design for elimination of metal artifacts},

author = {Grace Gang and Jeffrey H. Siewerdsen and J. Webster Stayman},

url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7654842/},

doi = {10.1117/12.2550203},

year  = {2020},

date = {2020-03-16},

booktitle = {SPIE Medical Imaging},

volume = {11312},

pages = {1131227},

publisher = {International Society for Optics and Photonics},

keywords = {Analysis, Customized Acquisition, Metal Artifacts, Task-Driven Imaging},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Liu2019,

title = {Known-component model-based material decomposition for dual energy imaging of bone compositions in the presence of metal implant},

author = {Stephen Liu and Steven Tilley and Qian Cao and Jeffrey H. Siewerdsen and J. Webster Stayman and Wojciech Zbijewski},

url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11072/2534725/Known-component-model-based-material-decomposition-for-dual-energy-imaging/10.1117/12.2534725.short

https://pubmed.ncbi.nlm.nih.gov/31359904/},

doi = {10.1117/12.2534725},

year  = {2019},

date = {2019-06-02},

booktitle = {International Meeting on Fully Three-Dimensional Image Reconstruction, Proc. SPIE },

volume = {11072},

pages = {1107213},

keywords = {Extremities, Known Components, MBIR, Metal Artifacts, Spectral X-ray/CT},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Uneri2018b,

title = {3D-2D known-component registration for metal artifact reduction in cone-beam CT},

author = {Ali Uneri and T. Yi and Xiaoxuan Zhang and J. Webster Stayman and Patrick Helm and Greg M. Osgood and Nick Theodore and Jeffrey H. Siewerdsen },

url = {https://aiai.jhu.edu/papers/CT2018_uneri.pdf},

year  = {2018},

date = {2018-05-20},

booktitle = {International Conference on Image Formation in X-Ray Computed Tomography},

pages = {151-155},

keywords = {Artifact Correction, Image Registration, Known Components, Metal Artifacts, Spine},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Uneri2018,

title = {Advanced Image Registration and Reconstruction using the O-Arm System: Dose Reduction, Image Quality, and Guidance using Known-Component Models},

author = {Ali Uneri and Xiaoxuan Zhang and J. Webster Stayman and Patrick Helm and Greg M. Osgood and Nick Theodore and Jeffrey H. Siewerdsen},

url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10576/2293874/Advanced-image-registration-and-reconstruction-using-the-O-Arm-system/10.1117/12.2293874.full},

doi = {10.1117/12.2293874},

year  = {2018},

date = {2018-02-15},

booktitle = {Proc. SPIE Medical Imaging},

volume = {10576},

pages = {1015761G-1-7},

keywords = {Image Guided Surgery, Image Registration, Known Components, Metal Artifacts, Spine, System Assessment},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Zhang2017,

title = {Polyenergetic known-component reconstruction without prior shape models},

author = {Chengzhu Zhang and Wojciech Zbijewski and Xiaoxuan Zhang and Shiyu Xu and J. Webster Stayman },

editor = {Thomas G. Flohr and Joseph Y. Lo and Taly Gilat Schmidt},

url = {http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2255542},

doi = {10.1117/12.2255542},

year  = {2017},

date = {2017-03-01},

booktitle = {SPIE Medical Imaging},

volume = {10132},

pages = {101320O-1--6},

keywords = {Beam Hardening, Known Components, MBIR, Metal Artifacts},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Zhang2017a,

title = {Deformable Known Component Model-Based Reconstruction for Coronary CT Angiography},

author = {Xiaoxuan Zhang and Steven Tilley and Shiyu Xu and Aswin Mathews and Elliot McVeigh and J. Webster Stayman},

editor = {Thomas G. Flohr and Joseph Y. Lo and Taly Gilat Schmidt},

url = {http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2255303},

doi = {10.1117/12.2255303},

year  = {2017},

date = {2017-03-01},

booktitle = {SPIE Medical Imaging},

volume = {10132},

pages = {1013213-1--6},

keywords = {Beam Hardening, Cardiac, Image Registration, Known Components, MBIR, Metal Artifacts},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{stayman2014integration,

title = {Integration of Component Knowledge in Penalized-Likelihood Reconstruction with Morphological and Spectral Uncertainties},

author = {J. Webster Stayman and Steven Tilley and Jeffrey H. Siewerdsen },

url = {http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4211110/},

year  = {2014},

date = {2014-01-01},

booktitle = {Conference proceedings/International Conference on Image Formation in X-Ray Computed Tomography. International Conference on Image Formation in X-Ray Computed Tomography},

volume = {2014},

pages = {111},

organization = {NIH Public Access},

keywords = {Artifact Correction, Known Components, MBIR, Metal Artifacts},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{stayman2013overcoming,

title = {Overcoming nonlinear partial volume effects in known-component reconstruction of Cochlear implants},

author = {J. Webster Stayman and Hao Dang and Yoshito Otake and Wojciech Zbijewski and Jack Noble and Benoit Dawant and Robert Labadie and John P. Carey and Jeffrey H. Siewerdsen},

editor = {Robert M. Nishikawa and Bruce R. Whiting },

url = {http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4060628/},

doi = {10.1117/12.2007945},

year  = {2013},

date = {2013-03-01},

booktitle = {SPIE Medical Imaging},

pages = {86681L},

organization = {International Society for Optics and Photonics},

keywords = {Artifact Correction, Head/Neck, High-Resolution CT, Known Components, MBIR, Metal Artifacts},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{otake2013model,

title = {Model-based cone-beam CT reconstruction for image-guided minimally invasive treatment of hip osteolysis},

author = {Yoshito Otake and J. Webster Stayman and Wojciech Zbijewski and Ryan J. Murphy and Michael D. Kutzer and Russell H. Taylor and Jeffrey H. Siewerdsen and Mehran Armand},

editor = {David R. Holmes III and Ziv R. Yaniv },

url = {http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2008094},

doi = {10.1117/12.2008094},

year  = {2013},

date = {2013-03-01},

booktitle = {SPIE Medical Imaging},

pages = {86710Y},

organization = {International Society for Optics and Photonics},

keywords = {Artifact Correction, Image Guided Surgery, Known Components, MBIR, Metal Artifacts},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Stayman2012,

title = {Model-based reconstruction of objects with inexactly known components},

author = {J. Webster Stayman and Yoshito Otake and Sebastian Schafer and A. Jay Khanna and Jerry L. Prince and Jeffrey H. Siewerdsen },

editor = {Norbert J. Pelc and Robert M. Nishikawa and Bruce R. Whiting },

url = {http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=PMC4507268},

doi = {10.1117/12.911202},

issn = {0277-786X},

year  = {2012},

date = {2012-02-01},

booktitle = {SPIE Medical Imaging},

volume = {8313},

number = {10},

pages = {83131S},

abstract = {Because tomographic reconstructions are ill-conditioned, algorithms that incorporate additional knowledge about the imaging volume generally have improved image quality. This is particularly true when measurements are noisy or have missing data. This paper presents a general reconstruction framework for including attenuation contributions from objects known to be in the field-of-view. Components such as surgical devices and tools may be modeled explicitly as part of the attenuating volume but are inexactly known with respect to their locations poses, and possible deformations. The proposed reconstruction framework, referred to as Known-Component Reconstruction (KCR), is based on this novel parameterization of the object, a likelihood-based objective function, and alternating optimizations between registration and image parameters to jointly estimate the both the underlying attenuation and unknown registrations. A deformable KCR (dKCR) approach is introduced that adopts a control point-based warping operator to accommodate shape mismatches between the component model and the physical component, thereby allowing for a more general class of inexactly known components. The KCR and dKCR approaches are applied to low-dose cone-beam CT data with spine fixation hardware present in the imaging volume. Such data is particularly challenging due to photon starvation effects in projection data behind the metallic components. The proposed algorithms are compared with traditional filtered-backprojection and penalized-likelihood reconstructions and found to provide substantially improved image quality. Whereas traditional approaches exhibit significant artifacts that complicate detection of breaches or fractures near metal, the KCR framework tends to provide good visualization of anatomy right up to the boundary of surgical devices.},

keywords = {Artifact Correction, Image Registration, Known Components, MBIR, Metal Artifacts},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{Zbijewski2012,

title = {CT Reconstruction Using Spectral and Morphological Prior Knowledge: Application to Imaging the Prosthetic Knee},

author = {Wojciech Zbijewski and J. Webster Stayman and Abdullah Al Muhit and John Yorkston and John A. Carrino and Jeffrey H. Siewerdsen },

url = {http://istar.jhu.edu/pdf/Zbijewski_KCR_CTMeeting2012.pdf},

year  = {2012},

date = {2012-01-01},

booktitle = {Second Int. Conf. Image Form. X-ray Computed Tomography},

pages = {434--438},

keywords = {Artifact Correction, Beam Hardening, Extremities, Known Components, MBIR, Metal Artifacts, Spectral X-ray/CT},

pubstate = {published},

tppubtype = {inproceedings}

}