AI Article Synopsis
- The study used statistical shape modeling (SSM) to analyze the shape and size of the levator hiatus (LH) in women of different reproductive states, aiming to uncover significant variations in LH characteristics.
- A total of 63 pelvic MRIs were examined, focusing on various dimensions of the LH, including cross-sectional area and diameters, with novel variables identified to provide greater insight into LH shape differences.
- The findings suggested that while traditional measurements align with SSM results, new measurements for anterior and posterior transverse diameters are more sensitive and could enhance diagnostic accuracy regarding LH variations.
Article Abstract
Purpose: The measures that traditionally describe the levator hiatus (LH) are straightforward and reliable; however, they were not specifically designed to capture significant differences. Statistical shape modeling (SSM) was used to quantify LH shape variation across reproductive-age women and identify novel variables associated with LH size and shape.
Approach: A retrospective study of pelvic MRIs from 19 nulliparous, 32 parous, and 12 pregnant women was performed. The LH was segmented in the plane of minimal LH dimensions. SSM was implemented. LH size was defined by the cross-sectional area, maximal transverse diameter, and anterior-posterior (A-P) diameter. Novel SSM-guided variables were defined by regions of greatest variation. Multivariate analysis of variance (MANOVA) evaluated group differences, and correlations determined relationships between size and shape variables.
Results: Overall shape ( ), SSM mode 2 (oval to -shape, ), mode 3 (rounder to broader anterior shape, ), and maximal transverse diameter ( ) significantly differed between groups. Novel anterior and posterior transverse diameters were identified at 14% and 79% of the A-P length. Anterior transverse diameter and maximal transverse diameter were strongly correlated ( , ), while posterior transverse diameter and maximal transverse diameter were weakly correlated ( , ).
Conclusions: The traditional maximal transverse diameter generally corresponded with SSM findings but cannot describe anterior and posterior variation independently. The novel anterior and posterior transverse diameters represent both size and shape variation, can be easily calculated alongside traditional measures, and are more sensitive to subtle and local LH variation. Thus, they have a greater ability to serve as predictive and diagnostic parameters.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11316399 | PMC |
| http://dx.doi.org/10.1117/1.JMI.11.4.045001 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The current study aimed to objectively evaluate the fit of a rectangular, tapered stem to the severely dysplastic hips on the basis of the proximal femoral anatomy and the dimensional properties of the stem. It was hypothesized that the stem size planned with accordance to the diaphyseal canal width alone can accommodate the distal femur successfully with no sizing mismatch. Forty-six patients (53 hips) suffering from secondary osteoarthritis due to hip dysplasia scheduled for total hip arthroplasty (THA) with a subtrochanteric transverse shortening osteotomy were included.
View Article and Find Full Text PDFIntegrated Effects of Water and Nitrogen Coupling on Eggplant Productivity, Fruit Quality, and Resource Use Efficiency in a Cold and Arid Environment.
Plants (Basel)
January 2025
College of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou 730070, China.
In order to explore the water and fertilizer requirements of eggplants in the western oasis of the river, the experiment was conducted in Minle County of Gansu Province in 2022 and 2023 under three water stress gradients and three nitrogen application levels: (1) moderate water stress (W, 50-60% in field water capacity [FC]), mild water stress (W, 60-70% in FC), and full irrigation (W, 70-80% in FC); (2) low nitrogen (N, 215 kg·ha), medium nitrogen (N, 270 kg·ha), and high nitrogen (N, 325 kg·ha). Moderate and mild water stress were applied during eggplant flowering and fruiting while full irrigation was provided during the other growth stages; a control class (CK) was established with full irrigation throughout the whole plant growth without nitrogen application. This study investigated the effects of water-saving and nitrogen reduction on the yield, quality, and water-nitrogen use efficiency of eggplants in a cold and arid environment in the Hexi Oasis irrigation area of China.
View Article and Find Full Text PDFAirway Analysis and Morphometric Assessment of Dental Arches in Obstructive Sleep Apnea Patients.
J Clin Med
January 2025
Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy.
: Obstructive sleep apnea is a sleep-related breathing disorder associated with craniofacial morphology and dental arches. The aim of this study was to evaluate the correlation between obstructive sleep apnea and the morphometry of dental arches and upper airways. : Forty patients were enrolled in the study, and the polysomnographic parameters evaluated were the apnea hypopnea index (AHI) and the oxygen desaturation index (ODI).
View Article and Find Full Text PDFFabrication and Electrical Characterization of Low-Temperature Polysilicon Films for Sensor Applications.
Micromachines (Basel)
December 2024
International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal.
The development of low-temperature piezoresistive materials provides compatibility with standard silicon-based MEMS fabrication processes. Additionally, it enables the use of such material in flexible substrates, thereby expanding the potential for various device applications. This work demonstrates, for the first time, the fabrication of a 200 nm polycrystalline silicon thin film through a metal-induced crystallization process mediated by an AlSiCu alloy at temperatures as low as 450 °C on top of silicon and polyimide (PI) substrates.
View Article and Find Full Text PDFThe aim of this study was to investigate the effect of the presence of the "cortex sign" (corticalization) in femoral diaphysis fractures determined by the dynamization of nails because of delayed union. The study included 12 patients with a closed transverse femoral fracture (AO 32a3) treated with dynamization (all the screws distal of the nail were removed) because of delayed healing and followed up for at least 2 years. These patients were evaluated for the presence of bone union, cortex-like sclerosis (corticalization) distal to the nail, and the distance of the corticalization from the joint during follow- up after dynamization.
View Article and Find Full Text PDFWant 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!