Seeing More with Less: Clinical Benefits of Photon-counting Detector CT

被引：49

作者：

Nehra, Avinash K. ^{[1
]}

Rajendran, Kishore ^{[1
]}

Baffour, Francis I. ^{[1
]}

Mileto, Achille ^{[3
]}

Rajiah, Prabhakar Shantha ^{[1
]}

Horst, Kelly K. ^{[1
]}

Inoue, Akitoshi ^{[4
]}

Johnson, Tucker F. ^{[1
]}

Diehn, Felix E. ^{[1
]}

Glazebrook, Katrina N. ^{[1
]}

Thorne, Jamison E. ^{[1
]}

Weber, Nikkole M. ^{[1
]}

Shanblatt, Elisabeth R. ^{[2
]}

Gong, Hao ^{[1
]}

Yu, Lifeng ^{[1
]}

Leng, Shuai ^{[1
]}

McCollough, Cynthia H. ^{[1
]}

Fletcher, Joel G. ^{[1
]}

机构：

[1] Mayo Clin, Dept Radiol, 200 1st St SW, Rochester, MN 55905 USA

[2] Siemens Med Solut USA, Malvern, PA USA

[3] Virginia Mason Med Ctr, Dept Radiol, Seattle, WA USA

[4] Shiga Univ Med Sci, Dept Radiol, Otsu, Shiga, Japan

来源：

RADIOGRAPHICS | 2023年 / 43卷 / 05期

关键词：

DUAL-ENERGY CT; OF-THE-ART; ANGIOGRAPHY; CALCIUM; ALGORITHM; REPAIR; KV;

D O I：

10.1148/rg.220158

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：

Photon-counting detector (PCD) CT is an emerging technology that has led to continued innovation and progress in diagnostic im-aging after it was approved by the U.S. Food and Drug Administration for clinical use in September 2021. Conventional energy-in-tegrating detector (EID) CT measures the total energy of x-rays by converting photons to visible light and subsequently using pho-todiodes to convert visible light to digital signals. In comparison, PCD CT directly records x-ray photons as electric signals, without intermediate conversion to visible light. The benefits of PCD CT systems include improved spatial resolution due to smaller detec-tor pixels, higher iodine image contrast, increased geometric dose efficiency to allow high-resolution imaging, reduced radiation dose for all body parts, multienergy imaging capabilities, and reduced artifacts. To recognize these benefits, diagnostic applications of PCD CT in musculoskeletal, thoracic, neuroradiologic, cardiovascular, and abdominal imaging must be optimized and adapted for specific diagnostic tasks. The diagnostic benefits and clinical applications resulting from PCD CT in early studies have allowed improved visualization of key anatomic structures and radiologist confidence for some diagnostic tasks, which will continue as PCD CT evolves and clinical use and applications grow. (c) RSNA, 2023 center dot radiographics.rsna.org

引用

页数：14

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