Dual-Energy, Spectral and Photon Counting Computed Tomography for Evaluation of the Gastrointestinal Tract

被引：3

作者：

Nehra, Avinash K. ^{[1
]}

Dane, Bari ^{[2
]}

Yeh, Benjamin M. ^{[2
,3
]}

Fletcher, Joel G. ^{[1
]}

Leng, Shuai ^{[1
]}

Mileto, Achille ^{[3
,4
]}

机构：

[1] Mayo Clin, Dept Cardiovasc Dis, 200 First St Southwest, Rochester, MN 55905 USA

[2] Univ Calif San Francisco, Dept Radiol & Biomed Imaging, 505 Parnassus Ave, San Francisco, CA 94143 USA

[3] Virginia Mason Med Ctr, Dept Radiol, 1100 9th Ave, Seattle, WA 98111 USA

[4] Virginia Mason Med Ctr, Dept Radiol, 1100 9th Ave, Seattle, WA 98101 USA

来源：

RADIOLOGIC CLINICS OF NORTH AMERICA | 2023年 / 61卷 / 06期

关键词：

Dual-energy CT; Photon-counting detector CT; Virtual monoenergetic images; Iodine maps; Hepatocellular carcinoma; Pancreatic adenocarcinoma; Gastrointestinal bleeding; Peritoneal disease; VIRTUAL NONENHANCED IMAGES; HYPERVASCULAR LIVER-TUMORS; MULTIDETECTOR ROW CT; URIC-ACID; PANCREATIC ADENOCARCINOMA; CLINICAL-APPLICATIONS; NOISE-REDUCTION; IODINE DENSITY; URINARY STONES; ATOMIC-NUMBER;

D O I：

10.1016/j.rcl.2023.06.002

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：

Through reconstruction of energy-and material specific image datasets, dual-energy CT can expand the array of diagnostic tools for the evaluation of gastrointestinal diseases as compared with single-energy CT. The combined use of virtual unenhanced, monochromatic, and iodine overlay/iodine maps allows for improved assessment of a variety of gastrointestinal diseases. Use of virtual unenhanced images can decrease radiation dose in the context of multiphase gastrointestinal CT examinations. Emerging photon-counting CT systems and novel contrast can further expand the role of dual-and multi energy CT techniques in the assessment of gastrointestinal diseases.

引用

页码：1031 / 1049

页数：19

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