In this study a new reference value, "corrected vertebral dimension," is presented for vertebral height measurements. Of 68 females (age 18-88 years; mean 44.2 years) and 40 males (age 16-81 years; mean 55 years) the projected vertebral dimensions (T4-L5) were measured on lateral radiographs. In addition to this, the vertebra-to-film distances (VFD) were measured and a fixed focus-to-film distance (FFD) was used during the study. Corrected dimensions of the thoracic and lumbar vertebrae (T4-L5) were calculated using the FFD and VFD. These corrected dimensions were then used to recalculate projected vertebral dimensions at different focus-to-film distances. The applied geometric corrections were verified in a phantom study representing an in vitro situation. The results indicate that studies using different X-ray techniques for making lateral radiographs of the spine can become comparable when using corrected vertebral dimensions.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s002239900420 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Airway morphology, hyoid position, and serum inflammatory markers of obstructive sleep apnea in children treated with modified twin-block appliances.
BMC Oral Health
January 2025
The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, P.R. China.
Objective: To investigate the effects of modified twin-block appliances (MTBA) on obstructive sleep apnea (OSA) and mandibular retrognathia and the changes in the upper airway, hyoid bone position, and hypoxia-related inflammatory marker levels in children with OSA.
Methods: This study included children with OSA and mandibular retrognathia and those with class I without mandibular retrognathia (n = 35 each). The experimental group comprised children with OSA and mandibular retrognathia managed using MTBA.
Impact of Antiplatelet Medication Continuation on Surgical Outcomes after Minimally Invasive Posterior Lumbar Decompression Surgery: Retrospective Cohort Study.
Global Spine J
January 2025
Department of Orthopedics, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan.
Study Design: Retrospective cohort study.
Objectives: Spinal surgeons face a dilemma regarding the continuation or discontinuation of antiplatelet agents during the perioperative period. Guidelines recommend considering the balance between thrombotic and bleeding risks.
[Atlantoaxial joint space and pharyngeal airway changes in skeletal class Ⅲ patients with mandibular deviation after combined orthodontic-orthognathic treatment: a cone-beam CT analysis].
Zhonghua Kou Qiang Yi Xue Za Zhi
January 2025
Department of Orthodontics, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
To explore the changes of atlantoaxial joint spaces and pharyngeal airway after combined orthodontic-orthognathic treatment in skeletal class Ⅲ patients with mandibular deviation. A total of 34 adult skeletal class Ⅲ patients (10 males and 24 females) with mandibular deviation who received combined orthodontic-orthognathic treatment at the Department of Orthodontics and the Department of Orthognathic Surgery in the Stomatological Hospital of Chongqing Medical University from August 2014 to October 2021 were retrospectively selected. The patients were 22 (5) years old (18-33 years).
View Article and Find Full Text PDFTextural and geometric measures derived from digital tomosynthesis discriminate women with and without vertebral fracture.
Eur J Radiol
January 2025
Bone and Joint Center, Henry Ford Health, Detroit, MI, USA; Henry Ford Health + Michigan State University Health Sciences, Detroit, MI, USA. Electronic address:
Vertebral fractures are a common and debilitating consequence of osteoporosis. Bone mineral density (BMD), measured by dual energy x-ray absorptiometry (DXA), is the clinical standard for assessing overall bone quantity but falls short in accurately predicting vertebral fracture. Fracture risk prediction may be improved by incorporating metrics of microstructural organization from an appropriate imaging modality.
View Article and Find Full Text PDFEffects of dog cardiac orientation on vertebral heart score measurements in different thoracic types.
Vet World
November 2024
Department of Surgery, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
Background And Aim: Computed tomographic (CT) images can elucidate the variations of cardiac orientation that this information among dog breeds has never been reported. This study aimed to explore the heart orientations of dogs with different thoracic types and study their effects on vertebral heart score (VHS) measurements using CT images.
Materials And Methods: Thoracic CT images of 115 mature dogs without thoracic abnormalities were retrospectively examined.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!