November 2013

Interventional

Contrast-Enhanced Angiographic Conebeam CT of Cerebrovascular Stents: Experimental Optimization and Clinical Application

Ajay Wakhloo

Ajay Wakhloo

Matthew J. Gounis

Matthew J. Gounis

C-arm-based conebeam CT (CBCT) has offered tremendous advances in interventional neuroradiology (reviewed1). One such important development was the ability to simultaneously image cerebrovascular stents and the vessel lumen that provides critical information regarding the relationship of the device to the host artery.2 Neurovascular stents, … more »

Interventional

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

Seung Hun Sheen

Seung Hun Sheen

Intravenous flat detector CT (IV FDCT) is an emerging technology for generating CT-like images from a rotating flat panel detector in a biplane angiographic system. Clinical applications of IV FDCT have included the early detection of cerebral infarction1 and periprocedural complications, and a follow-up tool for intracranial stenting.2

The Artis zee Biplane system … more »

Interventional

3D C-Arm Conebeam CT Angiography as an Adjunct in the Precise Anatomic Characterization of Spinal Dural Arteriovenous Fistulas

Kent R. Thielen

Kent R. Thielen

We have a long-standing interest and relatively high-volume practice directed at the diagnosis and treatment of spinal dural arteriovenous fistulas (SDAVFs). Patients with an SDAVF frequently have been misdiagnosed or have not been diagnosed at the time of their initial presentation at our institution. The ability to diagnose the patient’s SDAVF and then … more »

Brain

C-Arm Measurement of Cerebral Blood Volume and Cerebral Blood Flow Using a Novel High-Speed Acquisition and a Single Intravenous Contrast Injection

Kevin L. Royalty

The flat detector technology that is now available in the angiography suite on most commercial C-arm systems provides a platform for both CT and angiographic imaging, and with it, the potential for high spatial resolution anatomic and physiologic imaging for intraprocedural diagnosis and evaluation.

“Time is Brain” has now become the mantra for stroke management … more »

Interventional

Feasibility of Cerebral Blood Volume Mapping by Flat Panel Detector CT in the Angiography Suite: First Experience in Patients with Acute Middle Cerebral Artery Occlusions

Tobias Struffert

Tobias Struffert

Endovascular treatment of ischemic stroke has developed rapidly in recent years. I performed my first mechanical stroke treatment with a dedicated stroke device in a patient included in the penumbra trial that was published in AJNR in 2008. This patient showed a dramatic improvement of his clinical condition right after recanalization of the left MCA. … more »

Interventional

Applicability of Tableside Flat Panel Detector CT Parenchymal Cerebral Blood Volume Measurement in Neurovascular Interventions: Preliminary Clinical Experience

Pasquale Mordasini

Pasquale Mordasini

Flat panel detector (FPD) angiographic systems have been widely introduced into neurointerventional suites. They primarily allow the acquisition of high-quality 3D rotational angiography, but also allow us to obtain CT-like cross-sectional soft tissue imaging with different reconstruction modalities. FPD technology has been shown to permit fast imaging without the need for time-consuming patient transfer to … more »