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超鼻腔的光子计数计算机断层扫描改善了图像引导手术的手术内准确性

Benjamin Philipp Ernst¹, Iris Burck², Stefanie Schliwa³

¹Department of Otorhinolaryngology, University Medical Center, Goethe-University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany.

Diagnostics (Basel, Switzerland)

|November 13, 2025

概括

与双能CT (DECT) 和光谱检测器CT (SDCT) 相比,光子计数CT (PCCT) 在鼻的图像引导手术 (IGS) 中提供了更高的精度和图像质量. 在保持高精度的同时,PCCT可显著降低辐射剂量.

科学领域:

医疗成像医学成像
手术导航手术导航
放射学放射学是一门学科.

背景情况:

基于计算机断层扫描 (CT) 的图像引导手术 (IGS) 对于功能性内镜外科手术 (FESS) 至关重要.
IGS需要特定的成像协议来实现高的手术内准确性.
将光子计数CT (PCCT),双能双源CT (DECT) 和光谱探测器CT (SDCT) 进行比较,对于优化鼻内腔IGS至关重要.

研究的目的:

为了在IGS中比较PCCT,DECT和SDCT用于鼻膜成像.
为了评估三种CT技术中的图像质量,IGS精度和辐射剂量.
为了确定最优的CT模式,准确和安全的鼻鼻IGS.

主要方法:

使用PCCT,DECT和SDCT在100kV的变化管电流 (mAs) 时扫描了固定在甲胺中的尸体头骨.
使用解剖学地标和电磁导航设置来评估IGS的准确性.
图像质量 (诊断质量,骨/软组织噪声) 和辐射剂量 (剂量长度产品) 被定量和质量评估.

主要成果:

在PCCT中,导航精度降至10 mAs (1.5 mm误差).
在40 mAs以下,DECT和SDCT显示不准确度增加 (25 mAs时4.35/5.15毫米误差).
PCCT提供了优越的图像质量,并允许减少45%的辐射剂量.

结论:

PCCT在鼻IGS中的解剖学标志提供了卓越的准确性.
在低马氏体扫描中,PCCT提供了优越的图像质量,同时减少了辐射暴露.
PCCT是FESS中高精度,低剂量IGS的首选CT模式.

关键词:

准确度准确度准确度准确度慢性犀牛鼻炎慢性鼻炎头部和部的头部和部.图像指导手术是指导图像的手术.光子计数CTCT使用光子计数CT.

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