图像质量
头颈部
医学
核医学
信噪比(成像)
血管造影
光子计数
放射科
光子
光学
物理
图像(数学)
外科
计算机科学
人工智能
作者
Arwed Elias Michael,Jan Boriesosdick,Denise Schoenbeck,Ingo Lopez-Schmidt,Jan Robert Kroeger,Christoph Moenninghoff,Sebastian Horstmeier,Lenhard Pennig,Jan Borggrefe,Julius Henning Niehoff
出处
期刊:Diagnostics
[MDPI AG]
日期:2022-05-24
卷期号:12 (6): 1306-1306
被引量:22
标识
DOI:10.3390/diagnostics12061306
摘要
The purpose of the present study was the evaluation of the image quality of polyenergetic and monoenergetic reconstructions (PERs and MERs) of CT angiographies (CTAs) of the head and neck acquired with the novel photon counting CT (PCCT) method in clinical routine.Thirty-seven patients were enrolled in this retrospective study. Quantitative image parameters of the extracranial, intracranial and cerebral arteries were evaluated for the PER and MER (40-120 keV). Additionally, two radiologists rated the perceived image quality.The mean CTDIvol used in the PCCT was 8.31 ± 1.19 mGy. The highest signal within the vessels was detected in the 40 keV MER, whereas the lowest noise was detected in the 115 keV MER. The most favorable contrast-to-noise-ratio (CNR) and signal-to-noise-ratio (SNR) were detected in the PER and low keV MER. In the qualitative image analysis, the PER was superior to the MER in all rated criteria. For MER, 60-65 keV was rated as best image quality.Overall, PCCT offers excellent image quality for CTAs of the head and neck. At the current state, the PER of the PCCT seems to be the most favorable reconstruction for diagnostic reporting.
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