Atsushi Ogata

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A 76-year-old woman presented with a dural arteriovenous fistula (DAVF) manifesting as typical symptoms of normal pressure hydrocephalus such as progressive dementia, gait disturbances, and urinary incontinence. The cerebrospinal fluid pressure during lumbar puncture was 120 mmH(2)O. Computed tomography and magnetic resonance imaging showed ventricular(More)
PURPOSE To evaluate the clinical outcome and MRI findings after carotid artery stenting (CAS) without post-dilatation. METHODS Between May 2005 and April 2012, a total of 169 consecutive patients (61.4% symptomatic) underwent 176 CAS procedures performed with an embolic protection device (GuardWire, n=116; FilterWire EZ, n=60). All stents were deployed(More)
Two cases of cavernous sinus thrombophlebitis (CST) caused by dental infection are described. A 64-year-old woman presented with palsies of the left oculomotor and trochlear nerves after tooth extraction for dental caries in the left maxilla. A 54-year-old man presented with palsy of the left trochlear nerve, sensory disturbance in the ophthalmic and(More)
A 38-year-old woman was admitted to our hospital with a 3-day history of severe headache associated with some nausea and vomiting. MRI did not show any evidence of subarachnoid hemorrhage, but MRA and CTA showed an aneurysm on the paraclinoid region of the right internal carotid artery. She was successfully treated by coil embolization. MRA taken 7 days(More)
Taste(gustation)is one of the five senses, and comprises the types: sweet, bitter, salty, sour, and umami. Taste disorders, such as dysgeusia and parageusia, are classified into 2 types: those with peripheral origin and those with central origin. The peripheral origin-type taste disorder is caused by zinc deficiency, mouth dryness, a side effect of(More)
OBJECTIVE Hypoxia induces angiogenesis and plays a major role in the progression of carotid plaques. During carotid intervention, plaques with high-intensity signals on time-of-flight (TOF) magnetic resonance angiography (MRA) often cause ischemic stroke and embolic complications. However, the role of intraplaque hypoxia before carotid endarterectomy (CEA)(More)
A 76-year-old female presented with a rare case of cerebral infarction as a complication of non-traumatic direct carotid-cavernous fistula (CCF). She had left hemiparesis and magnetic resonance imaging revealed cerebral infarction in the right watershed area. Angiography showed a right high-flow direct CCF with total blood steal. Preoperative 123I-IMP SPECT(More)
We report two cases of delayed coil protrusion after coil embolization for ruptured cerebral aneurysms. Case 1:An 82-year-old woman with a subarachnoid hemorrhage due to a ruptured small anterior communicating artery aneurysm underwent successful coil embolization. Eighteen days after the procedure, coil protrusion from the aneurysm into the right anterior(More)
STUDY DESIGN Retrospective cohort study. OBJECTIVE Scoliosis and hydromyelia have frequently been observed in patients with spinal dysraphism. We investigated the applicability of curved planar reformation (CPR) for evaluating hydromyelia in patients with scoliosis associated with spinal dysraphism. SUMMARY OF BACKGROUND DATA It is quite difficult to(More)
Here, we describe a patient with primary peritoneal carcinoma (PPC) who developed a late, solitary brain metastasis. It is a case of a 68-year-old female presented with a 1-month history of progressive gait disturbance who had undergone a surgical resection of PPC five years prior, followed by adjuvant chemotherapy. An MRI revealed a 4.6cm mass lesion in(More)