Effective dose to patient measurements in flat-detector and multislice computed tomography: a comparison of applications in neuroradiology

Optimized Angiographic CT Using Intravenous Contrast Injection: A Noninvasive Imaging Option for the Follow-Up of Coiled Aneurysms?

“…However, by collimating the FOV on the coil package, the radiation dose can be substantially reduced by up to 0.5 mSv. 20 For comparison, the effective dose of a biplane 2D-DSA series was measured as 1 mSv. Thus, especially in the follow-up of multiple coiled cerebral aneurysms, the use of ivACT could significantly reduce radiation exposure to the patient compared with DSA.…”

Strahlendosis bei zerebraler Angiographie und Flachdetektor-CT-Applikationen in der Neuroradiologie

“…Abb. 3a, d) liegt mit 2,9 mSv minimal über den in der Literatur angegebenen Maximalwerten für die MS-CT (1,4-2,7 mSv [6,7,8,9]). Die perinterventionelle Anwendung der FD-CT, z.…”

“…Zum Vergleich der Dosiswerte der FD-CT zur MS-CT wurden eigene Messungen am CT-System (Siemens Somatom Definition AS, Siemens Healthcare GmbH, Forchheim) unserer Abteilung durchgeführt [6]. Zudem werden Publikationen, die ebenfalls mit einem Phantom effektive Dosismessungen durchgeführt haben, aufgeführt und diskutiert [7,8,9].…”

Low-Dose Volume-of-Interest C-Arm CT Imaging of Intracranial Stents and Flow Diverters

“…[1][2][3][4] The radiation dose required, however, is approximately twice that of a conventional multidetector row CT of the brain and thus is a limitation of the technique. 5 This limitation increases in a workflow in which multiple CACT scans are used during a procedure. Several methods are available to reduce the CACT radiation dose.…”