A5014102004- Vascular Malformations Diagnosis and Treatment
- Intracranial Aneurysms: Treatment and Complications
- Cerebrovascular and Carotid Artery Diseases
- Neurosurgical Procedures and Complications
- Cerebral Venous Sinus Thrombosis
- Retinal Development and Disorders
- Moyamoya disease diagnosis and treatment
- Vascular Anomalies and Treatments
- Central Venous Catheters and Hemodialysis
- Trigeminal Neuralgia and Treatments
- Acute Ischemic Stroke Management
- Retinal Diseases and Treatments
- Abdominal vascular conditions and treatments
- Glaucoma and retinal disorders
- Vascular anomalies and interventions
- Meningioma and schwannoma management
- Neurological Complications and Syndromes
- Cerebrospinal fluid and hydrocephalus
- Uterine Myomas and Treatments
- Retinal and Macular Surgery
- Intracerebral and Subarachnoid Hemorrhage Research
- Traumatic Brain Injury and Neurovascular Disturbances
- Acupuncture Treatment Research Studies
- Medical Imaging and Analysis
- Vascular Malformations and Hemangiomas
Tsurumi University
2016-2023
Oita University
2005-2016
Oita University Hospital
2013-2014
Beppu Medical Center
2007
Tohoku University
2004-2007
Tohoku University Hospital
2005
Nagatomi Neurosurgical Hospital
2002
The purpose of this article is to retrospectively compare radiation dose, noise, and image quality abdominal low-dose CT reconstructed with adaptive statistical iterative reconstruction (ASIR) routine-dose filtered back projection (FBP).Fifty-three patients (37 men 16 women; mean age, 60.8 years) underwent contrast-enhanced 40% ASIR. All 53 had previously undergone FBP. With the scanning techniques masked, two radiologists independently graded images for sharpness, diagnostic acceptability,...
Background and Purpose — We investigated the sensitivity of 3D–time-of flight (3D-TOF) magnetic resonance angiography (MRA) in detection cerebral aneurysms with use 3D digital subtraction as gold standard. also evaluated effects location number (and experience reader) on sensitivity. Methods 3D-TOF MRA was performed 82 patients 133 aneurysms. Each patient underwent rotational angiography. Three-dimensional reconstructed images were obtained from data (as standard). A blind study 4 readers...
Renal arteriovenous (AV) shunt, a rare pathologic condition, is divided into two categories, traumatic and nontraumatic, can cause massive hematuria, retroperitoneal hemorrhage, pain, high-output heart failure. Although transcatheter embolization less-invasive effective treatment option, it has potential risk of complications, including renal infarction pulmonary embolism, recanalization. The successful AV shunt requires complete occlusion the shunted vessel while preventing migration...
The aim of this study was to evaluate the anatomy and normal variations in craniocervical junction veins. We retrospectively reviewed 50 patients who underwent contrast-enhanced CT with a multidetector scanner. Axial reconstructed images were evaluated by two neuroradiologists special attention being paid existence size veins their relationships other venous branches around junction. structures contributing drainage, including inferior petrosal sinus (IPS), transverse-sigmoid sinus, jugular...
The maxillary artery is a terminal branch of the external carotid artery. Although main trunk and most its branches course within extracranial space supply organs muscles head neck, other surrounding soft tissues, oral rhinosinusal cavities, dura mater cranial nerve can anastomose to internal (ICA). Various pathologic conditions intracranial, head, neck regions involve Many these diseases be treated with endovascular approaches; however, there potential risk complications in brain parenchyma...
We evaluated the normal venous anatomy of anterior medullary/anterior pontomesencephalic (AMV/APMV) system and bridging veins connected to dural sinuses using magnetic resonance (MR) imaging demonstrated cases arteriovenous fistulas (DAVFs) with drainage.MR images obtained a 3D gradient echo sequence in 70 patients without lesions affecting deep or posterior channels were reviewed evaluate AMV/APMV veins. MR digital subtraction angiography 80 intracranial craniocervical junction DAVFs...
<b>SUMMARY:</b> Although dural arteriovenous fistulas (DAVFs) occur in any structure that is covered by the dura mater, DAVFs at posterior condylar canal have not been reported. We present a DAVF involves and drains into vein occipital sinus, which was treated selective transvenous embolization. Knowledge of venous anatomy craniocervical junction careful assessment location fistula can contribute to successful treatment.
Object. The authors compared the usefulness of three-dimensional (3D) reconstructed computerized tomography (CT) angiography with 3D digital subtraction (DS) in assessing intracranial aneurysms after clip placement. A retrospective review clinical cases was performed. Methods. Between May 2001 and 2003, 17 patients a total 20 underwent CT DS following assessed presence or absence residual aneurysm necks stenoocclusive changes parent artery neighboring artery. efficacy angiographic...
Recognition of shunted pouches dural arteriovenous fistula allows us to treat the disease effectively by selective embolization at first. However, in transverse-sigmoid sinus fistulas have not been well-documented. Our aim was evaluate angioarchitecture fistulas, including frequency and location their feeding arteries. MATERIALS AND METHODS Twenty-five consecutive cases TSS-DAVFs that underwent rotational angiography transvenous between 2008 2011 were reviewed. Multiplanar reformatted images...
<h3>BACKGROUND AND PURPOSE:</h3> Some branches of the internal maxillary artery have anastomoses with inferolateral trunk that are important as intracranial-extracranial collateral pathways and dangerous for transarterial embolization these branches. We present here an undescribed branch potentially anastomosing anteromedial trunk, which is provisionally named superior orbital fissure, defined arterial from pterygopalatine segment to apex at fissure. <h3>MATERIALS METHODS:</h3> Two...
The hypoglossal canal contains a venous plexus that connects the inferior petrous sinus, condylar vein, jugular vein and paravertebral plexus. is one of drainage routes posterior skull base. Only few cases dural arteriovenous fistulas (AVFs) involving have been reported. We describe three (a 62-year-old female, 52-year-old male, an 83-year-old male) AVFs canal. Symptoms were pulse-synchronous bruit in two proptosis/chemosis one. All mainly fed by ipsilateral ascending pharyngeal artery. Two...
The aim of the study was to investigate variations in uncal vein (UV) termination and its clinical implication cavernous sinus dural arteriovenous fistulas (CSDAVFs).Biplane cerebral angiography 80 patients (160 sides) with normal venous return (normal group) reviewed special interest UV. Frequency types drainage from CSDAVFs consecutive 26 were also analyzed.In group, UV identified 118 sides (74 %). terminated into (CS) 41 (34 %), superficial middle (SMCV) 58 (48 laterocavernous (LCS) 15...
To investigate the morphology and function of photoreceptors in mice with mutation FSCN2 gene.A mouse line was generated carrying 208delG (point mutation, or p-type) another replacement exon 1 by cDNA a green fluorescent protein (GFP knock-in, g-type). The expression retinal mRNA determined reverse transcription (RT)-polymerase chain reaction (PCR) situ hybridization performed on sections. Morphologic analyses retinas were light microscopy (LM) transmission electron (TEM) functional...
This study aimed to define the patterns of basal cerebral venous drainage (BCVD) from cavernous sinus dural arteriovenous fistulas (CSDAVFs).Forty sets selective angiographic data 36 patients with spontaneous CSDAVFs (age range, 53-79 years) were retrospectively analyzed for their patterns. Three types BCVD observed, i.e., superolateral type, via deep middle vein or uncal vein; posterolateral superior petrosal and posteromedial bridging anterior pontomesencephalic vein. MR images and/or...
To determine whether adenoassociated virus (AAV) vectors transduced into iris pigment epithelial (IPE) cells and transplanted the subretinal space of rats will transfer AAV genome to host are disseminated systemically.Recombinant (r)AAV was rat IPE rats. For control, rAAVs alone were injected subretinally. The detected by LacZ staining. Immunohistochemistry, electron microscopy, electroretinography, fluorescein-dextran angiography performed. DNA extracted from various organs blood examined...
Visual evoked potential (VEP) testing is used frequently and an important ophthalmologic physiological test to examine visual functions objectively. The VEP a complicated waveform consisting of negative named N75 N135, positive P100. Delayed P100 latency greatly attenuated amplitude on are known characteristics for diagnosing optic nerve disease. Acupuncture has been treat wide clinical symptoms with minimal side effects. confirmation the efficacy acupuncture generally relies subjective...