Image quality of photon-counting detector CT virtual monoenergetic and polyenergetic reconstructions for head and neck CT angiography

被引：7

作者：

Spampinato, Maria Vittoria ^{[1
]}

Rodgers, Jeffrey ^{[2
]}

McGill, Liam J. ^{[1
]}

Schoepf, Uwe Joseph ^{[1
]}

O'Doherty, Jim ^{[1
,3
]}

机构：

[1] Med Univ South Carolina, Dept Radiol & Radiol Sci, 96 Jonathan Lucas St, Charleston, SC 29425 USA

[2] Med Univ South Carolina, Coll Med, 171 Ashley Ave, Charleston, SC 29425 USA

[3] Siemens Med Solut, 40 Liberty Blvd, Malvern, PA 19355 USA

来源：

CLINICAL IMAGING | 2024年 / 108卷

关键词：

Photon-counting detector CT; CT angiography; Cerebrovascular diseases; Image quality; COMPUTED-TOMOGRAPHY;

D O I：

10.1016/j.clinimag.2024.110081

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

We compared image quality of head and neck CT angiography (CTA) obtained with a photon-counting detector CT (PCD-CT), including virtual monoenergetic images and polyenergetic reconstructions, and conventional energy-integrating detectors CT (EID-CT) in three patients. PCD-CT monoenergetic reconstructions at 70 keV and lower provided excellent image quality, with improved signal-to-noise and contrast-to-noise compared to EID-CT and PCD-CT polyenergetic reconstructions. PCD-CT may enable radiation dose and iodinated contrast dose reduction for cerebrovascular imaging.

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页数：5

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