Results 121 to 130 of about 35,838 (276)

A New 3D Segmentation Methodology for Lumbar Vertebral Bodies for the Measurement of BMD and Geometry [PDF]

open access: yesarXiv, 2017
In this paper a new technique is presented that extracts the geometry of lumbar vertebral bodies from spiral CT scans. Our new multi-step segmentation approach yields highly accurate and precise measurement of the bone mineral density (BMD) in different volumes of interest which are defined relative to a local anatomical coordinate systems.
arxiv  

Simultaneous Fractures of the Vertebral End Plates of Fifth Lumbar and First Sacral Vertebrae: A Case Report [PDF]

open access: bronze, 1995
Seung‐Koo Lee   +4 more
openalex   +1 more source

BRD4/MAP2K7/PGF Signaling Axis Promotes Senescence and Extracellular Matrix Metabolism of Nucleus Pulposus Cells in Intervertebral Disk Degeneration

open access: yesAging Cell, EarlyView.
This study identifies BRD4 as a key regulator in intervertebral disk degeneration (IDD), linking its upregulation to NP cell senescence and disrupted ECM metabolism through the BRD4/MAP2K7/PGF signaling cascade, offering a potential therapeutic target for IDD treatment.
Guangzhi Zhang   +6 more
wiley   +1 more source

An early Anglo-Saxon cemetery at Quarrington, near Sleaford, Lincolnshire : report on excavations, 2000-2001 [PDF]

open access: yes, 2004
[FIRST PARAGRAPH] The early Anglo-Saxon cemeteries in the Kesteven part of Lincolnshire form two distinct distribution patterns (Fig.1): a north-south line along, or just to the west of, the limestone edge between the former Roman towns of Lincoln and ...
Dickinson, T.M.
core  

A New 3D Method to Segment the Lumbar Vertebral Bodies and to Determine Bone Mineral Density and Geometry [PDF]

open access: yesarXiv, 2017
In this paper we present a new 3D segmentation approach for the vertebrae of the lower thoracic and the lumbar spine in spiral computed tomography datasets. We implemented a multi-step procedure. Its main components are deformable models, volume growing, and morphological operations.
arxiv  

Impact of age at first visit on glycolipid metabolism, bone metabolism, and fertility potential in patients with Klinefelter syndrome

open access: yesAndrology, EarlyView.
Abstract Background Classic Klinefelter syndrome (KS) is characterized by one extra X chromosome (47, XXY), leading to hypergonadotropic hypogonadism and higher risk of alterations in glycolipid homeostasis, cardiovascular diseases, and low bone mineral density. Most frequently, KS is diagnosed in adulthood because of infertility.
Giordana Ferraioli   +7 more
wiley   +1 more source

Cervical, Thoracic, and Spinopelvic Compensation After Proximal Junctional Kyphosis (PJK): Does Location of PJK Matter? [PDF]

open access: yes, 2020
Study Design:Retrospective case series. Objective:Compensatory changes above a proximal junctional kyphosis (PJK) have not been defined. Understanding these mechanisms may help determine optimal level selection when performing revision for PJK.
Ames, Christopher P   +14 more
core  

Clinical Features of Seven COL2A1 Variations in Chinese Children With Type II Collagen Disorders

open access: yesActa Paediatrica, EarlyView.
ABSTRACTAimType II collagen, encoded by the collagen type II alpha 1 (COL2A1) gene, is crucial for the structure of cartilage. This study aims to improve our understanding of Spondyloepiphyseal Dysplasia Congenita (SEDC) caused by mutations in COL2A1.
Shumin Zhan   +8 more
wiley   +1 more source

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