Host: The Japan Society of Mechanical Engineers
Name : Mechanical Engineering Congress,Japan
Date : September 11, 2016 - September 14, 2016
An intracranial aneurysm (also called a cerebral aneurysm) is a cerebrovascular disorder in the brain, causing a localized dilation or ballooning arising from a weakened area in the wall of a blood vessel (1). Prospective autopsy and angiographic studies indicated that the prevalence of intracranial aneurysms was estimated to be between 3.6% and 6.0% of the general population (2). If the brain aneurysm expands and the blood vessel wall becomes too thin, the aneurysm will rupture and bleed into the space around the brain, which is called subarachnoid hemorrhages (SAH). The SAH is a serious disorder that may cause a hemorrhagic stroke. About 60% of patients die immediately after rupture (3). Therefore, asymptomatic unruptured intracranial aneurysms (UIA) should be detected as early as possible prior to their rupture. For early detections of asymptomatic intracranial aneurysms, the standard modality for the first screening is magnetic resonance angiography (MRA) (4). However, it is very difficult for general and inexperienced radiologists to detect small aneurysms in MRA. Therefore, a number of CAD systems have been developed for assisting the radiologists in the detection of intracranial aneurysms (5,6). The authors will present the concept of the computer-aided detection approaches of intracranial aneurysms in MRA, related technologies, and its future perspective.
