Scholars@Duke
Roy John Colglazier

Roy John Colglazier

Assistant Professor of Radiology
Radiology, Musculoskeletal Imaging

Selected Publications

The impact of preoperative bone mineral density on outcomes following lower extremity megaprosthetic reconstruction for oncologic resections.

Journal Article Bone · January 2026 BACKGROUND: While megaprosthetic reconstructions have been instrumental in restoring patients' functional abilities, surgeons remain cautious of revision risk. This is the first study to assess the impacts of preoperative bone mineral density (BMD) on outc ... Full text Link to item Cite

The Duke University Cervical Spine MRI Segmentation Dataset (CSpineSeg).

Journal Article Sci Data · October 27, 2025 This work describes a publicly available dataset, the Duke University Cervical Spine MRI Segmentation Dataset (CSpineSeg), consisting of 1,255 cervical spine magnetic resonance imaging (MRI) examinations from 1,232 patients collected from the Duke Universi ... Full text Link to item Cite

SegmentAnyBone: A universal model that segments any bone at any location on MRI.

Journal Article Med Image Anal · April 2025 Magnetic Resonance Imaging (MRI) is pivotal in radiology, offering non-invasive and high-quality insights into the human body. Precise segmentation of the MRIs into different organs and tissues would be very beneficial as it would allow more accurate measu ... Full text Link to item Cite

Predicting 3D forearm fracture angle from biplanar Xray images with rotational bone pose estimation

Conference Proceedings of Machine Learning Research · January 1, 2024 Two-dimensional X-ray images, while widely used, have limitations to reflect 3D information of the imaged objects. Several studies have tried to recover such information from multiple X-ray images of the same object. Still, those approaches often fail due ... Cite

Giant cell tumor of bone in the pediatric population: a retrospective study highlighting cases of metaphyseal only location and increased local recurrence rates in skeletally immature patients.

Journal Article Skeletal Radiol · December 2023 OBJECTIVE: To describe the presentation of giant cell tumors (GCT) of the bone in the pediatric population to (1) improve the differential diagnosis of pediatric bone tumors and (2) identify the origin of GCT. Understanding the origin of bone tumors assist ... Full text Link to item Cite

Improving Image Classification of Knee Radiographs: An Automated Image Labeling Approach.

Journal Article J Digit Imaging · December 2023 Large numbers of radiographic images are available in musculoskeletal radiology practices which could be used for training of deep learning models for diagnosis of knee abnormalities. However, those images do not typically contain readily available labels ... Full text Link to item Cite

Financial Impact of Imaging Examination Site of Service in the Medicare Population.

Journal Article Curr Probl Diagn Radiol · 2023 PURPOSE: The financial sustainability of the US healthcare system is a growing concern in an environment of declining reimbursement and rising costs. Variable Centers for Medicare and Medicaid (CMS) reimbursement and denial rates for specific imaging exami ... Full text Link to item Cite

SuperMask: Generating High-resolution object masks from multi-view, unaligned low-resolution MRIs

Conference Proceedings of Machine Learning Research · January 1, 2023 Three-dimensional segmentation in magnetic resonance images (MRI), which reflects the true shape of the objects, is challenging since high-resolution isotropic MRIs are rare and typical MRIs are anisotropic, with the out-of-plane dimension having a much lo ... Cite

Prospective Multireader Evaluation of Photon-counting CT for Multiple Myeloma Screening.

Journal Article Radiol Imaging Cancer · November 2022 Purpose To determine whether photon-counting CT (PCCT) acquisition of whole-body CT images provides similar quantitative image quality and reader satisfaction for multiple myeloma screening at lower radiation doses than does standard energy-integrating det ... Full text Link to item Cite

Staging and Surveillance of Myxoid Liposarcoma: Follow-up Assessment and the Metastatic Pattern of 169 Patients Suggests Inadequacy of Current Practice Standards.

Journal Article Ann Surg Oncol · November 2021 BACKGROUND: Unlike other sarcoma subtypes, myxoid liposarcoma (MLS) has a propensity for extra-pulmonary metastases. Computed tomography (CT) scan of the chest, abdomen, and pelvis has become an accepted practice for surveillance. However, recent literatur ... Full text Link to item Cite

Risk of contrast extravasation with vascular access in computed tomography.

Journal Article Emerg Radiol · June 2020 PURPOSE: Diagnostic computed tomography (CT) imaging, utilizing intravenous (IV) contrast administration, has become increasingly common. Potential IV contrast-associated complications include local skin and soft tissue reactions due to extravasation. The ... Full text Link to item Cite