Radiation Doses of Cerebral Blood Volume Measurements Using C-Arm CT: A Phantom Study
نویسندگان
چکیده
منابع مشابه
Cerebral CT perfusion using an interventional C-arm imaging system: cerebral blood flow measurements.
BACKGROUND AND PURPOSE CTP imaging in the interventional suite could reduce delays to the start of image-guided interventions and help determine the treatment progress and end point. However, C-arms rotate slower than clinical CT scanners, making CTP challenging. We developed a cerebral CTP protocol for C-arm CBCT and evaluated it in an animal study. MATERIALS AND METHODS Five anesthetized sw...
متن کاملC-arm CT measurement of cerebral blood volume in ischemic stroke: an experimental study in canines.
BACKGROUND AND PURPOSE CBV is a key parameter in distinguishing penumbra from ischemic core. The purpose of this study was to compare CBV measurements acquired with standard PCT with ones obtained with C-arm CT in a canine stroke model. MATERIALS AND METHODS Under an institutionally approved protocol, unilateral MCA strokes were created in 10 canines. Four hours later, DWI was used to confirm...
متن کاملC-arm CT measurement of cerebral blood volume: an experimental study in canines.
BACKGROUND AND PURPOSE Cerebral blood volume (CBV) is an important parameter in estimating the viability of brain tissue following an ischemic event. We tested the hypothesis that C-arm CT measurements of CBV would correlate well with those made with perfusion CT (PCT). MATERIALS AND METHODS CBV was measured in 12 canines by using PCT and C-arm CT. Two measurements with each technique were ma...
متن کاملReproducibility of Parenchymal Blood Volume Measurements Using an Angiographic C-arm CT System.
RATIONALE AND OBJECTIVES Intra-procedural measurement of hepatic perfusion following liver embolization continues to be a challenge. Blood volume imaging before and after interventional procedures would allow identifying the treatment end point or even allow predicting treatment outcome. Recent liver oncology studies showed the feasibility of parenchymal blood volume (PBV) imaging using an angi...
متن کاملQuantitative evaluation of C-arm CT cerebral blood volume in a canine model of ischemic stroke.
BACKGROUND AND PURPOSE Previous studies have shown the feasibility of assessing qualitative CBV measurements in the angiography suite by using FPD-CBCT systems. We have investigated the correlation of FPD-CBCT CBV lesion volumes to the infarct volume. MATERIALS AND METHODS Unilateral strokes were created in 7 adult dogs. MR imaging and FPD-CBCT data were obtained after MCA occlusion. FPD-CBCT...
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ژورنال
عنوان ژورنال: American Journal of Neuroradiology
سال: 2013
ISSN: 0195-6108,1936-959X
DOI: 10.3174/ajnr.a3822