Quantitative Neuroanatomical Measurement on Photogrammetric Model: Validation Study.

IF 1.9 4区 医学 Q3 CLINICAL NEUROLOGY
World neurosurgery Pub Date : 2025-02-01 Epub Date: 2025-01-06 DOI:10.1016/j.wneu.2024.123574
Amedeo Piazza, Jacopo Bellomo, Sergio Corvino, Edoardo Agosti, Simona Serioli, Alice Campeggi, Francesco Corrivetti, Luca Regli, Carlo Serra, Matteo de Notaris
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Abstract

Objective: To examine and compare the accuracy of measurements obtained from photogrammetric models versus direct measurements taken on dry skulls, with the aim to verify the feasibility of photogrammetry for quantitative analysis in microsurgical neuroanatomy.

Methods: Two dry human skulls were used. Each was scanned using the dual camera system of a smartphone The selected photos were separately processed using 2 different softwares to create three-dimensional models. Subsequently, 41 anatomical measurements (both linear and curvilinear) based on common anatomical landmarks were taken both directly on dry skulls and on photogrammetric models and compared. Analyzed factors included measurement error, intrarater and interrater reliability, and intermodality agreement.

Results: Four photogrammetric models were created. Analysis revealed similar errors when comparing photogrammetric and direct measurements. Measurements from digital models exhibited robust reliability among repeated measures and different observers, supported by very high intraclass correlation coefficient values. Mean measurement difference between Agisoft Metashape software-generated models and direct measurement was 0.01 cm with no systematic bias observed. Conversely, the Metascan app-derived models showed a mean measurement difference of -0.35 cm compared with direct measurement, displaying good agreement for smaller measurements and a systematic proportional bias with increasing measurement size.

Conclusions: Two photogrammetric models were validated as quantitative analysis techniques for laboratory neuroanatomical studies, showing acceptable measurement error, high intrarater and interrater reliability, and good to very good agreement compared with direct measurement on dry skulls, replacing expensive and time-consuming methods such as computed tomography scans and neuronavigation systems.

摄影测量模型的定量神经解剖学测量:验证研究。
目的:考察和比较摄影测量模型与干颅骨直接测量结果的准确性,以验证摄影测量在显微外科神经解剖学定量分析中的可行性。方法:采用2个干人头骨。每张照片都使用智能手机的双摄像头系统进行扫描,选定的照片分别被两种不同的软件处理,以创建3D模型。随后,根据常见的解剖标志,直接在干颅骨和摄影测量模型上进行了41项解剖测量(包括线性和曲线)并进行了比较。分析的因素包括测量误差、内部和内部可靠性以及多式联运一致性。结果:建立了4个摄影测量模型。我们的分析表明,在比较摄影测量和直接测量时也存在类似的误差。数字模型的测量结果在重复测量和不同观测者之间显示出强大的可靠性,这得到了非常高的类内相关系数(ICC)值的支持。Agisoft Metashape软件生成的模型与直接测量的平均测量差为0.01 cm,未观察到系统偏差。相反,Metascan应用程序衍生的模型显示,与直接测量相比,平均测量差为-0.35 cm,对于较小的测量显示出良好的一致性,并且随着测量尺寸的增加而出现系统的比例偏差。结论:两种摄影测量模型的作用被验证为实验室神经解剖学研究的定量分析技术,显示出可接受的测量误差,高内部和内部可靠性以及与干颅骨直接测量相比良好到非常好的一致性,取代了昂贵且耗时的方法,如CT扫描和神经导航系统。
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来源期刊
World neurosurgery
World neurosurgery CLINICAL NEUROLOGY-SURGERY
CiteScore
3.90
自引率
15.00%
发文量
1765
审稿时长
47 days
期刊介绍: World Neurosurgery has an open access mirror journal World Neurosurgery: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The journal''s mission is to: -To provide a first-class international forum and a 2-way conduit for dialogue that is relevant to neurosurgeons and providers who care for neurosurgery patients. The categories of the exchanged information include clinical and basic science, as well as global information that provide social, political, educational, economic, cultural or societal insights and knowledge that are of significance and relevance to worldwide neurosurgery patient care. -To act as a primary intellectual catalyst for the stimulation of creativity, the creation of new knowledge, and the enhancement of quality neurosurgical care worldwide. -To provide a forum for communication that enriches the lives of all neurosurgeons and their colleagues; and, in so doing, enriches the lives of their patients. Topics to be addressed in World Neurosurgery include: EDUCATION, ECONOMICS, RESEARCH, POLITICS, HISTORY, CULTURE, CLINICAL SCIENCE, LABORATORY SCIENCE, TECHNOLOGY, OPERATIVE TECHNIQUES, CLINICAL IMAGES, VIDEOS
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