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Patient Dose in Cardiac Computed Tomography

Patientendosis bei kardialer Computertomographie

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Background:

Computed tomographic (CT) imaging of the heart is becoming more widely available, and the quality of and interest in these examinations continues to increase. Yet, many physicians who perform or order these exams may be unfamiliar with the radiation doses that are delivered to the patient during specific cardiac CT examinations.

Objective: The purpose of this article is to describe several fundamental radiation dose quantities that are used to either measure or report the dose associated with a particular CT examination. In addition, radiation dose estimates are given for coronary artery calcium imaging and coronary angiography performed using either electron beam CT (EBCT) or multi-detector row CT (MDCT) systems.

Hintergrund:

Die Computertomographie (CT) des Herzens wird bei steigendem Interesse häufiger durchgeführt. Viele Ärzte, die diese Untersuchung durchführen oder anordnen, sind aber mit den Dosen, die bei diesen speziellen Herz-CT-Anwendungen verabreicht werden, nicht vertraut.

Ziel: Dieser Beitrag soll einige grundlegende Kenntnisse der Dosimetrie für das Cardio-CT vermitteln. Zusätzlich wird eine Abschätzung der Dosen für die Bestimmung des Koronarkalks und der Koronarangiographie mit der Elektronenstrahlcomputertomographie (EBCT) oder mit dem Multi-Detektor-CT (MDCT) gegeben.

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Correspondence Address Cynthia H. McCollough, PhD, Associate Professor of Radiologic Physics, Department of Radiology, E2-A, Mayo Clinic and Mayo Foundation, 200 1st Street SW, Rochester, MN 55905, USA, Phone (+1/507) 284-6875, Fax -2405, e-mail: mccollough.cynthia@mayo.edu

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McCollough, C. Patient Dose in Cardiac Computed Tomography. Herz 28, 1–6 (2003). https://doi.org/10.1007/s00059-003-2447-2

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  • DOI: https://doi.org/10.1007/s00059-003-2447-2

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