An examination of 40 healthy persons (80 eyes) enabled a refinement and unification of the ultrasound techniques applicable to investigations of a. ophthalmica, a. and v. centralis retinae, a. ciliaris brevis et longae and of other orbital space vessels. Abilities of various regimes of computer-based sonography, in particular of color energy Doppler mapping, were determined in examinations of capillary choroidal plexuses and of optic-nerve portions neighboring directly on the eyeball. The possibilities of using the three-dimension ultrasound angioreconstruction in examinations of the ocular angioarchitectonics and of the retrobulbar space were evaluated.
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Plast Reconstr Surg Glob Open
December 2024
From the Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Background: Three-dimensional (3D) models generated from computed tomography (CT) images efficiently and accurately complement surgical comprehension. Additionally, computer modeling provides a substrate for comparative analysis of the treated orbit volume. This study aimed to investigate cases of orbital bone fractures with regard to orbital-defect correction, through 3D computational structural modeling and evaluation of orbital volume.
View Article and Find Full Text PDFJ Orthop Surg Res
December 2024
Teaching and Research Section of Clinical Nursing, Xiangya Hospital of Central South University, 87 Xiangya Road, Kaifu District, Changsha, Hunan Province, China.
Objectives: This study aims to identify predictors of knee osteoarthritis (KOA) risk in middle-aged population, construct and validate a nomogram for KOA in this demographic.
Methods: From June to December 2020, we conducted a cross-sectional survey on 5,527 middle-aged individuals from Changsha and Zhangjiajie cities in Hunan Province, selected using a stratified multi-stage random sampling method. Data collection involved a structured questionnaire encompassing general demographic, physical condition, and lifestyle behaviors dimensions.
Purpose: The purpose of this study is to compare the stress distribution between all-on four and all-on six treatment concept with various prosthetics framework materials through finite element analysis.
Materials And Methods: A three-dimensional finite element model of edentulous maxilla was simulated using computerized topographical data of a patient. Four implants were placed according to All-on four concept.
Am J Transl Res
November 2024
Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University Shijiazhuang, Hebei, China.
Objectives: To construct a three-dimensional visualized model of the sacral nerve canal, and understand its structure and angles.
Methods: This was a retrospective study including 20 patients undergoing computerized tomography (CT) scanning of the sacrum. Consecutive CT images in Dicom format were directly imported into Mimics software.
J Exp Orthop
October 2024
Department of Orthopedics Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing China.
Purpose: To assess coracoid process morphology in an Asian population using three-dimensional (3D) computed tomography (CT) reconstruction and provide reference values for surgical treatment.
Methods: Data on demographic and shoulder CT characteristics were collected from 142 patients for 3D-CT-based scapular reconstruction. Ten coracoid morphological indicators and the glenoid width were measured.
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