AngioCT in the management of neurointerventional patients: a prospective, consecutive series with associated dosimetry and resolution data

Abstract

AngioCT has many applications in the neurointerventional setting. In particular during coiling, AngioCT provides a rapid way to clarify concerns or identify complications and in some cases was the major factor influencing further patient management immediately after coiling. AngioCT images were judged of adequate quality to be clinically useful in all patients in this series.

Intravenous flat-detector CT angiography in acute ischemic stroke management

“…CTA is considered as the gold standard in the visualization of the intracranial arteries in a noninvasive way [10,17]. One of the major advantages over conventional angiography is Analyses of the images were realized by two readers separately for the purpose of interobserver evaluation.…”

“…So far, the interventional X-ray technology was solely used for image guidance in the thrombolytic stroke therapy and mechanical clot retrieval, not providing assessment of the vessel portions located distally to the obstruction spot. Accurate and timely availability of high-resolution intracranial CT and CTA enhances assessment of spatial clot locations as well as helps in the definition of the most optimal patient treatment strategy [10][11][12][13]. The aim of our study was to investigate applicability of the IV FDCT technique in detecting the occlusion localization, the extent of the vascular obliteration by measurement of the clot length as well as the description of distal aspect of the brain circulation, located beyond the clot.…”

Feasibility of Intravenous Flat Panel Detector CT Angiography for Intracranial Arterial Stenosis

“…A recent phantom study affirmed the significantly reduced exposure of radiation in IV FDCT through comparative testing with multisection CT. 25 With the advance of technology in reducing a higher noise level in a short acquisition mode, high-quality images can be obtained with a much lower effective radiation dose of 0.4 mSv. 26 IV FDCT has some drawbacks including more motion artifacts and beam-hardening artifacts due to metal. Beam-hardening artifacts can be reduced by using a metal artifacts-reduction algorithm.…”

Patterns in neurosurgical adverse events: endovascular neurosurgery

“…59 Not only is the patient at risk for harm due to ionizing radiation exposure during these procedures, but the treating physician is also at risk. 73 Several neurointerventional groups have reported radiation doses delivered to the patient and/or treating physician in single studies or over a hospitalization, 8,29,39,43,83 but no prospective study has been performed to evaluate cause and effect between these exposures and long-term effects such as neoplasm. Techniques to minimize radiation to both patients and their treating physicians include lead shielding, collimation, and minimizing the exposure time and number of runs during angiography.…”