Photon-counting CT: Technical Features and Clinical Impact on Abdominal Imaging

Overview

Journal Abdom Radiol (NY)

Publisher Springer

Specialties Gastroenterology
Radiology

Date 2024 Jun 18

PMID 38888738

Authors

Hiromitsu Onishi

Takahiro Tsuboyama

Atsushi Nakamoto

Takashi Ota

Hideyuki Fukui

Mitsuaki Tatsumi

Toru Honda

Kengo Kiso

Shohei Matsumoto

Koki Kaketaka

Yukihiro Enchi

Shuichi Kawabata

Shinya Nakasone

Noriyuki Tomiyama

Affiliations

Soon will be listed here.

Abstract

Photon-counting CT has a completely different detector mechanism than conventional energy-integrating CT. In the photon-counting detector, X-rays are directly converted into electrons and received as electrical signals. Photon-counting CT provides virtual monochromatic images with a high contrast-to-noise ratio for abdominal CT imaging and may improve the ability to visualize small or low-contrast lesions. In addition, photon-counting CT may offer the possibility of reducing radiation dose. This review provides an overview of the actual clinical operation of photon-counting CT and its diagnostic utility in abdominal imaging. We also describe the clinical implications of photon-counting CT including imaging of hepatocellular carcinoma, liver metastases, hepatic steatosis, pancreatic cancer, intraductal mucinous neoplasm of the pancreas, and thrombus.

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