Diagnosis of intraventricular and cisternal cysticercosis by computerized tomography with positive intraventricular contrast medium

1981 ◽  
Vol 55 (6) ◽  
pp. 947-951 ◽  
Author(s):  
Ignacio Madrazo ◽  
Jose A. Garcia Renteria ◽  
Gonzalo Paredes ◽  
Bernardo Olhagaray
Keyword(s):  
Contrast Medium ◽  
Computerized Tomography ◽  
Positive Contrast ◽  
Cerebral Aqueduct ◽  
Content Type ◽  
Contrast Enhanced ◽  
Definition Of ◽  
Fine Print

✓ Computerized tomography (CT) has replaced pneumoencephalography and ventriculography in the diagnosis of intraventricular cysticercosis. The authors present a refinement in the use of CT by introducing a positive contrast medium into the ventricles to increase the definition of plain and contrast-enhanced scans in the diagnosis of intraventricular cysticercosis. Eleven cases of Cysticercus cyst are presented, 10 of which were precisely delineated by CT-iodoventriculography. In the remaining case, lack of definition was due to obstruction of the cerebral aqueduct. Surgical confirmation was obtained in all cases.

Double-contrast ventriculography with oxygen and water-soluble positive contrast medium, metrizamide (Amipaque)

1979 ◽  
Vol 51 (2) ◽  
pp. 211-218 ◽  
Author(s):  
Antti Servo ◽  
Viljo Halonen
Keyword(s):  
Contrast Medium ◽  
Computerized Tomography ◽  
Obstructive Hydrocephalus ◽  
Positive Contrast ◽  
Ct Scanning ◽  
Water Soluble ◽  
Double Contrast ◽  
Content Type ◽  
Contrast Ventriculography ◽  
Fine Print

✓ A technique for ventriculography using both gas and a positive contrast medium metrizamide (Amipaque) is presented. This ventriculographic method proved superior to computerized tomography (CT) scanning in revealing the cause of obstructive hydrocephalus. Small central tumors and intraventricular cysts, often missed with CT, were also well demonstrated. This technique has been used since 1975, and is simple an$ safe.

Computerized tomographic definition of mesencephalic hematoma with evacuation through pedunculotomy

1978 ◽  
Vol 49 (5) ◽  
pp. 749-752 ◽  
Author(s):  
Robin P. Humphreys
Keyword(s):  
Computerized Tomography ◽  
Hemorrhagic Stroke ◽  
Content Type ◽  
Definition Of ◽  
Fine Print

✓ A 10-year-old boy, who presented with symptoms of a progressive hemorrhagic stroke, had suffered a spontaneous midbrain hematoma. The extent of the clot was detailed by computerized tomography and the lesion was surgically removed through pedunculotomy.

Cerebral gumma

1985 ◽  
Vol 63 (2) ◽  
pp. 301-303 ◽  
Author(s):  
Wen-Zern Hwang ◽  
Takeshi Hasegawa ◽  
Haruhide Ito ◽  
Takashi Shimoji ◽  
Shinjiro Yamamoto
Keyword(s):  
Contrast Medium ◽  
Computerized Tomography ◽  
Temporal Lobe ◽  
Intravenous Administration ◽  
Low Density ◽  
Content Type ◽  
Vessel Walls ◽  
The Right ◽  
Fine Print

✓ A case of focal cerebral syphilitic gumma of the right temporal lobe is reported. Angiography showed moderate focal hypervascularity with stretched vessels, and irregularity of the vessel walls. Plain computerized tomography revealed an area of low density that enhanced strongly after intravenous administration of contrast medium.

Brain-tumor imaging using radiopaque perfluorocarbon

1983 ◽  
Vol 58 (5) ◽  
pp. 650-653 ◽  
Author(s):  
Nicholas J. Patronas ◽  
Javad Hekmatpanah ◽  
Kunio Doi
Keyword(s):  
Brain Tumor ◽  
Brain Tumors ◽  
Contrast Agent ◽  
Contrast Medium ◽  
Computerized Tomography ◽  
Tumor Imaging ◽  
Content Type ◽  
X Ray ◽  
The Brain ◽  
Fine Print

✓ Perfluorocarbon, a new tumor-seeking x-ray contrast agent, was injected into three rats with experimental brain tumors. After 1 to 3 days the rats were sacrificed, and the brains were removed and subjected to x-ray study. All showed dense radiopaque areas which correlated with the size and shape of the corresponding brain tumors. Conversely, none of the radiograms taken of the brain tumor in five rats receiving no perfluorocarbon (control animals) showed similar increased density. These findings suggest that perfluorocarbon may serve a useful role as a contrast medium for computerized tomography studies of brain tumors in man.

Computerized tomography scanning appearances of intracranial meningiomas

1979 ◽  
Vol 50 (3) ◽  
pp. 320-327 ◽  
Author(s):  
John Vassilouthis ◽  
James Ambrose
Keyword(s):  
Contrast Medium ◽  
Computerized Tomography ◽  
Moderate Degree ◽  
Content Type ◽  
Tumor Margins ◽  
Before And After ◽  
Fibroblastic Meningioma ◽  
Definition Of ◽  
Attenuation Values ◽  
Marked Tendency

✓ The computerized tomography (CT) scans of 102 patients with meningiomas confirmed at operation and histologically were reviewed, and the features displayed by the tumors were correlated with their histology. There were 54 transitional, 17 fibroblastic, 13 mixed transitional and fibroblastic, 10 angioblastic, and eight syncytial meningiomas. It was found that each of these meningioma variants exhibited common CT features that could be helpful in predicting the probable histology. These common features were: visible calcium aggregates, degree of surrounding edema, tumor density before and after contrast medium enhancement, homogeneity, and definition of outline. Visible calcium aggregates pointed to a diagnosis of either transitional or fibroblastic meningioma. None of the angioblastic or syncytial variants exhibited this feature. Most of the tumors were surrounded by edema of varying degrees (92%) but this was not considered to be a specific feature except perhaps in the fibroblastic type where the edema was almost invariably of moderate degree. Tumor attenuation values unenhanced by contrast medium were also nonspecific but in enhanced scans a homogeneous density distribution pointed to the tumor being most probably of the transitional type. The angioblastic and syncytial variants showed a marked tendency to exhibit low-density non-enhancing “cystic” areas or poorly defined, irregular tumor margins or fringes. All of the fibroblastic, transitional, or mixed fibroblastic and transitional variants were well defined with more or less regular shapes. The presence of marked edema, absence of visible calcium aggregates, non-homogeneous contrast enhancement with non-enhancing “cystic” components and poorly defined irregular borders point to aggressive or invasive characteristics more commonly found in the angioblastic and syncytial variants.

Cortical blindness after cerebral angiography

1981 ◽  
Vol 54 (2) ◽  
pp. 240-244 ◽  
Author(s):  
William E. Studdard ◽  
David O. Davis ◽  
Stephen W. Young
Keyword(s):  
Renal Function ◽  
Contrast Medium ◽  
Computerized Tomography ◽  
Cerebral Angiography ◽  
Contrast Material ◽  
Cortical Blindness ◽  
Content Type ◽  
Visual Areas ◽  
The Brain ◽  
Fine Print

✓ A case of cortical blindness after cerebral angiography is presented. Serial computerized tomography scans of the brain revealed persistence of contrast medium in occipital visual areas as well as areas that may have been associated with “focal seizures” that occurred after angiography. This case supports the concept that cortical blindness may be secondary to the direct effect of contrast medium on the brain. The persistence of contrast material was in part due to decreased renal function.

Ventriculoatrial shunt blockage by previous positive contrast ventriculography

1973 ◽  
Vol 39 (3) ◽  
pp. 356-358 ◽  
Author(s):  
Jorge Mendez S.
Keyword(s):  
Intracranial Pressure ◽  
Contrast Medium ◽  
Positive Contrast ◽  
Ventriculoatrial Shunt ◽  
Increased Intracranial Pressure ◽  
Content Type ◽  
Contrast Ventriculography ◽  
Fine Print

✓ Obstruction of both Torkildsen and ventriculoatrial shunts by positive contrast medium injected at a previous ventriculography is reported. This complication was surgically confirmed and alleviated. Two similar cases with ventriculoatrial shunts obstructed by Pantopaque are briefly described. All cases presented symptoms of increased intracranial pressure until the contrast medium was eliminated. In cases requiring Pantopaque ventriculography, central ventriculography often permits removal of the opaque medium at the end of the examination, avoiding this complication if shunting is performed later.

Jefferson fractures in children

1983 ◽  
Vol 58 (2) ◽  
pp. 277-279 ◽  
Author(s):  
Arthur E. Marlin ◽  
Gayle R. Williams ◽  
J. Fletcher Lee
Keyword(s):  
Computerized Tomography ◽  
Conventional Radiography ◽  
The Other ◽  
Neurological Deficits ◽  
Content Type ◽  
The Poor ◽  
Fractures In Children ◽  
Definition Of ◽  
Fine Print

✓ Jefferson fractures in children are exceedingly rare. A case in a 2-year-old is reported, and the other only case in the literature is reprinted. The mechanism of fracture is probably separation of the lateral masses by a force transmitted from the vertex. Because these fractures are not usually associated with neurological deficits, and because of the poor detail obtained with conventional radiography in a child, these fractures may be overlooked. Computerized tomography provides superb definition of this lesion. The preferred mode of treatment is immobilization.

Progressive neurological deficits with benign intracerebral cysts

1986 ◽  
Vol 65 (5) ◽  
pp. 706-709 ◽  
Author(s):  
Yoko Nakasu ◽  
Jyoji Handa ◽  
Kazuyoshi Watanabe
Keyword(s):  
Histological Examination ◽  
Computerized Tomography ◽  
Cyst Wall ◽  
Benign Lesion ◽  
Ct Scanning ◽  
Neurological Deficits ◽  
Review Of The Literature ◽  
Content Type ◽  
Ct Findings ◽  
Fine Print

✓ Two patients with benign intracerebral cysts are reported and a brief review of the literature is given. Although computerized tomography (CT) scanning is useful in detecting a variety of intracerebral cysts, the CT findings are not specific for any lesion. An exploratory operation with establishment of an adequate route of drainage and a histological examination of the cyst wall are mandatory in the management of patients with a progressive but benign lesion.

Intracranial epithelial cysts

1976 ◽  
Vol 44 (1) ◽  
pp. 109-115 ◽  
Author(s):  
Beth J. L. MacGregor ◽  
Jeffrey Gawler ◽  
John R. South
Keyword(s):  
Computerized Tomography ◽  
Content Type ◽  
Diagnostic Aspects ◽  
Epithelial Cysts ◽  
Emi Scanner ◽  
Fine Print

✓ The authors report two cases with large unilocular intracerebral epithelial cysts. Diagnosis was facilitated in both patients by computerized tomography (EMI scanner). The clinical and diagnostic aspects of previously reported cases are reviewed, and the etiology and pathogenesis of these cysts discussed.

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