Advances in Clinical and Experimental Medicine

Title abbreviation: Adv Clin Exp Med
JCR Impact Factor (IF) – 1.736
5-Year Impact Factor – 2.135
Index Copernicus  – 168.52
MEiN – 70 pts

ISSN 1899–5276 (print)
ISSN 2451-2680 (online)
Periodicity – monthly

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Advances in Clinical and Experimental Medicine

2012, vol. 21, nr 6, November-December, p. 831–841

Publication type: review article

Language: English

Novel Clinical Applications of Dual Energy Computed Tomography

Zastosowanie kliniczne dwuenergetycznej tomografii komputerowej

Tomasz Kraśnicki1,A,B,C,D, Przemysław Podgórski1,B,D,F, Maciej Guziński1,B,E, Anna Czarnecka1,B, Krzysztof Tupikowski1,B,E, Jerzy Garcarek1,E, Marek Sąsiadek1,A,E,F

1 Department of General Radiology and Inerventional Radiology and Neuroradiology, Wrocaw Medical University, Poland

Abstract

Dual energy CT (DECT) was conceived at the very beginning of the computed tomography era. However the first DECT scanner was developed in 2006. Nowadays there are three different types of DECT available: dual-source CT with 80(100) kVp and 140 kVp tubes (Siemens Medical Solution); dual-layer multi-detector scanner with acquisition 120 or 140 kVp (Philips Healthcare); CT unit with one rapid kVp switching source and new detector based on gemstone scintillator materials (GE Healthcare). This article describes the physical background and principles of DECT imaging as well as applications of this innovative method in routine clinical practice (renal stone differentiation, pulmonary perfusion, neuroradiology and metallic implant imaging). The particular applications are illustrated by cases from author’s material.

Streszczenie

Podstawy fizyczne dwuenergetycznej tomografii były znane od początku istnienia tomografii komputerowej, jednak pierwsze tomografy dwuenergetyczne powstały dopiero w 2006 r. Obecnie do zastosowań klinicznych są dostępne 3 różne rodzaje tomografów dwuenergetycznych: tomograf dwulampowy (Siemens Medical Solution), aparat wielorzędowy o dwóch warstwach detektorów (Philips Healthcare) oraz tomograf jednoźródłowy z możliwością szybkiego przełączania napięcia na lampie rentgenowskiej (GE Healthcare). W tym artykule zostaną przedstawione fizyczne podstawy i zasady działania dwuenergetycznej tomografii komputerowej oraz kliniczne zastosowanie tej innowacyjnej metody obrazowania (w urologii, kardiologii, neuroradiologii i ortopedii). Poszczególne aplikacje zostały zilustrowane własnymi przykładami.

Key words

Dual Energy Computed Tomography, DECT, Computed Tomography, renal stones, pulmonary perfusion, metal implant imaging, neuroradiology

Słowa kluczowe

dwuenergetyczna tomografia komputerowa, DECT, tomografia komputerowa, kamienie nerkowe, perfuzja płucna, obrazowanie implantu metalowego, neuroradiologia

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