Multiplanar reconstructions of the thoracic spine in a photon counting dual-source CT scanner: comparison to EID-CT.

IF 1.1 4区医学 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Acta radiologica Pub Date : 2024-09-01 Epub Date: 2024-08-21 DOI:10.1177/02841851241271109

Stefanie J Bette, Franziska M Braun, Jan H Luitjens, David Kaufmann, Josua Decker, Judith Becker, Christian Scheurig-Muenkler, Thomas J Kroencke, Florian Schwarz

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引用次数: 0

Abstract

Background: Photon-counting detector computed tomography (PCD-CT) is a groundbreaking technology with promising results for visualization of small bone structures.

Purpose: To analyze the delineation of the thoracic spine in multiplanar reconstructions (MPR) on PCD-CT compared to energy-integrating detector (EID)-CT.

Material and methods: Two euthanized mice were examined using different scanners: (i) 20-slice EID-CT and (ii) dual-source PCD-CT at various CTDI_Vol values. Readers evaluated the thoracic spine and selected series with best visualization among signal-to-noise ratio (SNR)-matched pairs.

Results: SNR was significantly higher in PCD-CT reconstructions (Br68) and lower in Hr98 reconstructions compared to EID-CT. Bone detail visualization was superior in PCD-CT (especially in Hr98 reconstructions) compared to EID-CT.

Conclusion: MPR on a PCD-CT had a higher SNR and better bone detail visualization even at lower radiation doses compared to EID-CT. PCD-CT with bone reconstructions showed the best delineation of small bone structures and might be considered in clinical routine.

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光子计数双源 CT 扫描仪的胸椎多平面重建：与 EID-CT 的比较。

背景：光子计数探测器计算机断层扫描（PCD-CT目的：与能量积分探测器（EID）-CT 相比，分析 PCD-CT 多平面重建（MPR）中胸椎的轮廓：使用不同的扫描仪对两只安乐死小鼠进行检查：(i) 20 片 EID-CT 和 (ii) 不同 CTDIVol 值的双源 PCD-CT。阅读者对胸椎进行评估，并在信噪比（SNR）匹配的扫描对中选择可视化效果最好的扫描序列：结果：与 EID-CT 相比，PCD-CT 重建（Br68）的信噪比明显较高，而 Hr98 重建的信噪比较低。与 EID-CT 相比，PCD-CT（尤其是 Hr98 重建）的骨细节可视化效果更好：结论：与 EID-CT 相比，PCD-CT 上的 MPR 具有更高的信噪比（SNR）和更好的骨骼细节显示，即使辐射剂量较低。PCD-CT的骨重建显示了对小骨结构的最佳描述，可在临床常规中加以考虑。

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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来源期刊

Acta radiologica 医学-核医学

CiteScore

2.70

自引率

0.00%

发文量

170

审稿时长

3-8 weeks

期刊介绍： Acta Radiologica publishes articles on all aspects of radiology, from clinical radiology to experimental work. It is known for articles based on experimental work and contrast media research, giving priority to scientific original papers. The distinguished international editorial board also invite review articles, short communications and technical and instrumental notes.