Creating a 3D-printed pelvic phantom to explore the impact of Magnetic Resonance (MR) scanner noise in radiomics analysis, a technical note.

Q3 Medicine Annals of 3D printed medicine Pub Date : 2024-02-01 DOI:10.1016/j.stlm.2024.100143

Richard Collier , Michelle Leech , Laure Marignol , John Gaffney , Ralph Leijenaar , Ciaran Malone

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Abstract

Reproducibility of radiomics features necessitates that scanner noise be considered prior to feature extraction. Phantom research provides the opportunity for such ‘ground truth’ measurements, without the additional complication of patient-related factors. The aim of this technical note was to create a 3D printed Magnetic Resonance Imaging (MRI)-compatible pelvic phantom that can be used for subsequent analysis of the impact of scanner noise on the reproducibility of radiomics features.

A 3D printed phantom of a male pelvis was created using fused deposition modelling technology. It was 3D printed using the high density MRI-compatible acrylonitrile butadiene styrene (ABS). The ‘negative’ mould created was then filled with silicone, and the prostate gland and femoral heads were also simulated.

We successfully created an MRI-compatible 3D printed pelvic phantom, with a test scan. The phantom will subsequently be utilised to determine the impact of MRI scanner noise on radiomics feature reproducibility.

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创建三维打印骨盆模型，探索放射组学分析中磁共振（MR）扫描仪噪音的影响，技术说明。

放射组学特征的可重复性要求在提取特征前考虑扫描仪的噪声。模型研究为此类 "地面实况 "测量提供了机会，而且不会增加与患者相关的复杂因素。本技术说明旨在创建一个与磁共振成像（MRI）兼容的三维打印骨盆模型，用于后续分析扫描仪噪声对放射组学特征可重复性的影响。该模型采用与核磁共振成像兼容的高密度丙烯腈-丁二烯-苯乙烯（ABS）材料进行三维打印。我们成功制作了一个与核磁共振成像兼容的三维打印骨盆模型，并进行了测试扫描。随后，我们将利用该模型来确定核磁共振成像扫描仪噪音对放射组学特征再现性的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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