Cerebrovascular Disorders ; diagnostic imaging ; Clinical Medicine ; Humans ; Neuroradiography ; methods ; trends ; utilization ; Stroke ; diagnostic imaging

This paper introduces the basic principle and method of establishing a database for neuropathic images, and discusses its significance and data sharing. The database is composed of three data volumes about basic knowledge for images, cranial sectional anatomy and neuropathic images. The data sharing is achieved by using a method of linking the dynamic network of neuropathic images with database of neuropathic images. There are three searching approaches: catalog searching, key words searching and code searching.
Databases, Bibliographic ; Hospital Information Systems ; Humans ; Information Storage and Retrieval ; methods ; Neuroradiography

The birth of myelography was presaged by Dandy's classic description of pneumoencephalography in 1919. After then, many contrast media, such as Pantopaque, Lipiodol, Abrodil, Dimer-X, and Conray-60, were developed and myelography was achieved in widespread popularity for diagnosis in low back pain, especially on the syndrome of herniated intervertebral disc. During the past few years, the picture has changed dramatically because of the availability of Metrizamide, a new, less toxic, non-ionic, aqueous medium. So, the authors have seen and studied 165 cases of. low back pain with respect to the diagnostic classification and clinical acceptance of Metrizamide myelographic examination from May, 1982 to April, 1985 at Department of Orthopaedic Surgery, College of Medicine, Soon Chun Hyang University. The results were summerized as followings; l. Among the 165 cases, myelographic finding was classified in 4 groups and 7 types, and showed as group 1(41), group 2 and type a(46), group 2 and type b(21), group 3 and type a(9), group 3 and type 1(15), group 3 and type c(16), and group 4(17). 2. The predominent type in the 57 operative cases was group 4(46, 27.9%). 3. In clinical analysis, tenderness was predominent in most types, but sensory changes in group 4. 4. Step by step in types, anatomical changes was seen more often than funtional changes in plain X-ray. 5. Myelographic accuracy was coincided with operative findings in 75.4% and 7 cases of false negative and 5 cases of false positive. 6. In disc findings, the extruded type was seen predominently in group 4 as 29.4%. 7. Above group 3 and type a, the prognosis of operative treatment was excellent than conservative.
Classification ; Clinical Study ; Contrast Media ; Diagnosis ; Ethiodized Oil ; Intervertebral Disc ; Iophendylate ; Low Back Pain ; Metrizamide ; Myelography ; Parturition ; Pneumoencephalography ; Prognosis

No abstract available.
Myelography*

The present study involves 30 craniopharyngioma patients who were admitted to the Department of Neurosurgery, Yonsei Medical college from April, 1965 to December, 1978. All 30 patients received surgery, the results of which were analyzed and evaluated as follows. 1. They consisted of 22 male and 8 female patients. Sixty percent of all patients were under 20 years of age. 2. Chief complaints were as follows:headache(80.0%), decreased visual acuity(80.0%), visual field cut(46.3%), nausea and vomiting(40.3%), papilledema(40.0%), optic atrophy(33.3%), diabetes insipidus(27.0%), and mental disturbance(27.0%). 3. They were diagnosed mainly by cerebral angiography until 1977, at times combined with pneumoencephalography, isotope brain scan, and Conray ventriculography. Since 1978 using the CT brain scan we have been able to reduce risk during and after neuroradiological study, and accurately determine location, size, shape and invasiveness of the tumor. 4. Surgical procedures were performed in 32 cases of craniopharyngioma using several approaches;transfrotal approaches;transfrontal approach:29 cases, transsphenoidal approach:2 cases, and sterotaxic cyst puncture:1 cases. In 8 cases(27.0%) total resection of the tumor was performed, subtotal resection in 23 cases(71.9%), and aspiration of the cyst in one case(3.1%). 5. In the above 32 surgeries, 24 cases(75.0%) of craniopharyngioma were performed by microsurgery, 8 cases involved total resection and 16 cases subtotal removal. As a result of microsurgery, it was possible to remove the tumor from the surrounding structures with less damage. 6. To manage hydrocephalus during the operation, extraventricular drainage was applied in 8 cases(27%) and in 7 cases(23.3%) ventriculoatrial or ventriculoperitoneal shunts were employed pre-or postoperatively. 7. Postsurgical radiation therapy was given to 8 patients in the dosage of 5000-7000 rad during 6 to 8 week period following surgery.
Brain ; Cerebral Angiography ; Craniopharyngioma* ; Drainage ; Female ; Humans ; Hydrocephalus ; Male ; Microsurgery ; Nausea ; Neurosurgery ; Pneumoencephalography ; Ventriculoperitoneal Shunt ; Visual Fields

At the Department of internal neurology of Cho Ray Hospital from Dec 2000 to Jan 2003. 130 patients with acute hemisphere cerebral ischemic stroke were studied. Among them, 34 patients could not evaluated by transcranial Doppler sonography, only 79 had transcranial Doppler sonography (TDS) results and MRI results, which confirmed cerebral infarctus. TDS found 30 normal cases, 28 cases with asymmetric indices reduced, 18 cases increased, 1 case of localized acceleration, 2 cases of obstructive cerebral artery in the side of clinical symptom. MRI found 17 normal cases, 62 cases of stricture of cerebral arteries. Sensitivity and specificity of TDS accounted for 74.2% and 82.4% in comparing with cerebro-vascularogramme made by MRI.
Cerebrovascular Accident ; Brain Ischemia ; Cerebral Angiography ; Ultrasonography, Doppler, Transcranial

We have experienced 17 cases of the upper brain stem compression lesions diagnosed by serial vertebral angiography and other ancillary studies from October, 1972 to August, 1975. All the cases were proven by serial vertebral angioraphy using the Seldinger catheter technique through the femoral artery and other studies such as carotid angiography, conray ventriculograpy, brain scan and pneumoencephalography. Angiographical analysis were attempted. The results were as following: 1. The location of lesion is:supratentorial lesions; 8 cases, infratentorial lesions; 5 cases, tentorial lesions; 3 cases, bilateral hippocampal herniation due to otitic hydrocephalus; 1 case. 2. We have tried to classify the upper brain stem compression lesions according to the direction of compression, i.e., (1) forward, (2) medial, (3) backward and (4) downward and analyzed their angiographic findings in detail. 3. Lesions compressed the upper brain stem forward were one case of bilateral occipital meningioma, one case of fourth ventricle tumor, two cases of medulloblastoma and one case of cerebellar hemispheric tumor. Their main angiographic findings were as follows;(1) Separation of quadrigeminal segment of superior cerebellar artery and posterior cerebral artery, (2) Compression of basilar artery against clivus and depression or elevation of bifurcation of basilar artery, (3) Stretching of thalamoperforating artery, (4) Elevation and forward basilar artery, (3) Stretching of thalamoperforating artery, (4) Elevation and forward displacement of posterior mesencephalic vein and posterior displacement of precentral cerebellar vein, (5) Elevation of vein of Rosenthal. 4. Lesions compressed the upper brain stem medially were two cases of parietal ependymoma, one case of temporal meningioma, one case of bilateral hippocampal herniation and three cases of tentorial tumors. Their main angiography findings were as follows; (1) Medial displacement of posterior cerebral artery, superior cerebelar artery, bifurcation of basilar artery, distal portion of vein of Rosenthal, lateral mesencephalic vein and internal cerebral vein in Towne's view, (2) Elevation or depression of posterior mesencephalic vein, (3) Depression of bifurcation of basilar artery, (4) Stretching of thalamoperforating artery, (5) Depression of crural and ambient segment of superior cerebellar artery. 5. Lesions compressed the upper brain stem backward were one case of pituitary tumor and one case of cerebellopontine angle tumor. Their main angiographic findings were as follows; (2) Posterior displacement of distal portion of basilar artery, (2) Posterior displacement of anterior pontomesencephalic vein, (3) Elevation of posterior cerebral artery and superior cerebellar artery, (4) Elevation of vein of Rosenthal and posterior mesencephalic vein, (5) Stretching and elevation of posterior communicating artery. 6. Lesions compressed the upper brain stem downward were one case of thalamic tumor, one case of thalamic hemorrhage, and one case of pinealoma. Their main angiographic findings were as follows; (1) Stretching of posterior cerebral artery and superior cerebellar artery, (2) Displacement and stretching of internal cerebral vein, vein of Rosenthal and posterior mesencephalic vein, (3) Depression of bifurcation of basilar artery, (4) Stretching of thalamoperforating artery, (5) Depression of posterior cerebral artery and superior cerebellar artery, (6) Depression of internal cerebral vein, vein of Rosenthal, posterior mesencephalic vein and anterior pontomesencephalic vein. 7. We have concluded that in order to diagnosis the upper brain stem compression lesions serial vertebral angiography is the most important procedure and at the same time the analysis of the arteriographic and venographic findings in detail is important.
Angiography* ; Arteries ; Basilar Artery ; Brain Stem* ; Brain* ; Catheters ; Cerebral Veins ; Cranial Fossa, Posterior ; Depression ; Diagnosis ; Ependymoma ; Femoral Artery ; Fourth Ventricle ; Hemorrhage ; Hydrocephalus ; Medulloblastoma ; Meningioma ; Neuroma, Acoustic ; Pinealoma ; Pituitary Neoplasms ; Pneumoencephalography ; Posterior Cerebral Artery ; Rabeprazole ; Veins

BACKGROUND: Anterior cerebral artery (ACA) flow abnormalities on a transcranial Doppler ultrasonography (TCD) represent various conditions, which include hyperemic collateral to the ipsilateral middle cerebral artery (iMCA) or contralateral internal carotid artery (cICA) pathology, and ipsilateral anterior cerebral artery (iACA) stenosis. However, studies related to these conditions have rarely been done. We evaluated the hemodynamic significance of ACA flow abnormalities on TCD without angiographic information. METHODS: We analyzed TCD records, which were recruited consecutively during a 10-month period in our laboratory. ACA abnormalities on TCD were defined as follows: 1) mean flow velocities (mFV) of ACA>80 cm/sec; 2) ipsilateral mFV ACA/MCA> 1.2; 3) anterior cerebral artery veloci-ty ratios (ACAVR)> 1.34. We then correlated TCD patterns with a magnetic resonance angiography (MRA) or trans-femoral cerebral angiography (TFCA). RESULTS: Thirty-five patients were recruited to participate in this study. Based on MRA or TFCA, we found 4 patterns of vascular status which could explain the ACA abnormalities on the TCD. The iMCA pathology was demonstrated in 14 cases, cICA pathology in 11 cases, iACA stenosis in 3 cases, and cACA hypoplasia in 5 cases. Eight cases did not show any vascular pathology. CONCLUSIONS: ACA flow abnormalities should be evaluated with absolute flow velocity indicies, as well as other indexes, which mostly signify hyperemic collateral flow to the iMCA or cICA steno-occlusion. (J Korean Neurol Assoc 19(4):349~353, 2001)
Angiography ; Anterior Cerebral Artery* ; Carotid Artery, Internal ; Cerebral Angiography ; Constriction, Pathologic ; Hemodynamics ; Humans ; Magnetic Resonance Angiography ; Middle Cerebral Artery ; Pathology ; Ultrasonography, Doppler, Transcranial*

To establish management protocol for delayed ischemic deficits(DID), the authors designed a prospective study involving patients with aneurysmal subarachnoid hemorrhage, Fisher group 2 or 3, who had been admitted within 72 hours of the first rupture. The study group consisted of 100 consecutive surgical cases who underwent prophylactic hyperdynamic therapy during the period May 1995 to December 1996. The historical control group was a series of 117 patients, treated between January 1993 and April 1995, who did not undergo the same therapy. DID occurred in seven of 51 patients(13.7%) in the study group who underwent surgery within 72 hours of the first rupture, and in ten of 38 patients(26.3%) in the control group who similarly under surgery. Patients who postoperatively showed evidence of DID were managed as follows ; 1) in those developing DID without increased velocity on transcranial Doppler(TCD) study, hypertension was induced ; 2) in those who on TCD study showed increased flow velocity, cerebral angiography was performed ; 3) those with significant arteriographic vasospasm or delayed cerebral circulation, were intra-arterially infused with papaverine. In conclusion, prophylactic hyperdynamic therapy is an effective tool for the prevention of DID, especially following early surgery. TCD study may not effectively detect DID, but is a useful guide to the selection of management modalities. Intra-arterial papaverine infusion is an effective therapy for angiographic vasospasm and the prevention of DID.
Cerebral Angiography ; Humans ; Hypertension ; Intracranial Aneurysm* ; Papaverine ; Prospective Studies* ; Rupture* ; Subarachnoid Hemorrhage ; Ultrasonography, Doppler, Transcranial

The various special diagnostic procedures have been used for the cervical cord injuries. The author describes a new technique of pantopaque cervical myelography based on the lateral C1-2 puncture.
Iophendylate* ; Myelography* ; Punctures*