Subject(s)
Carotid Artery Diseases/diagnosis , Cerebral Angiography/methods , Ischemic Attack, Transient/diagnosis , Radiographic Image Enhancement , Ultrasonography/methods , Adult , Aged , Carotid Artery Diseases/diagnostic imaging , Female , Humans , Ischemic Attack, Transient/diagnostic imaging , Male , Middle AgedABSTRACT
The echoencephalographic examinations of 127 neonates were analysed to verify the role of US in the study of neonatal cerebral pathology, and to compare it with CT. US was of value in identifying the existence of a cerebral lesion and for follow-up. CT was more reliable for the characterization of the lesion and in establishing the surgical indications.
Subject(s)
Brain Diseases/diagnosis , Tomography, X-Ray Computed , Ultrasonography , Brain Diseases/diagnostic imaging , Brain Neoplasms/diagnosis , Brain Neoplasms/diagnostic imaging , Cerebral Hemorrhage/diagnosis , Cerebral Hemorrhage/diagnostic imaging , Humans , Hydrocephalus/diagnosis , Hydrocephalus/diagnostic imaging , Infant , Infant, Newborn , Retrospective Studies , Time FactorsSubject(s)
Electroencephalography , Epilepsy/complications , Intellectual Disability/complications , Tomography, X-Ray Computed , Adolescent , Cerebellar Diseases/complications , Child , Child, Preschool , Epilepsy/diagnosis , Epilepsy/etiology , Female , Humans , Intellectual Disability/diagnosis , Intellectual Disability/etiology , Male , Peripheral Nervous System Diseases/complications , Prognosis , SyndromeABSTRACT
This paper analyzes our findings in a series of 1900 CT examinations carried out on 950 children after ventricular drainage. Blood in the ventricles is a relatively frequent findings in the immediate postoperative course, and gliotic or poroencephalic phenomena are often found in the late course. Persistence of ventricular dilatation and periventricular lucency has been observed several times. Extracerebral collections and septic complications are not rare findings, but trapped fourth ventricle and choroidal-ependymal reactions are only rarely observed.
Subject(s)
Brain/diagnostic imaging , Cerebrospinal Fluid Shunts , Hydrocephalus/surgery , Postoperative Complications/diagnostic imaging , Child , Humans , Infant , Tomography, X-Ray ComputedABSTRACT
The result of a late CT control of infantile hydrocephalus is reported with an analysis of effects of the catheter on the cerebral tissue in the immediate and late postoperative course. The most frequent finding is blood in the ventricle and/or subependymal or intraparenchymal along the catheter or near its tip.
Subject(s)
Cerebral Hemorrhage/diagnostic imaging , Cerebrospinal Fluid Shunts/adverse effects , Hydrocephalus/surgery , Tomography, X-Ray Computed , Brain Diseases/diagnostic imaging , Brain Diseases/etiology , Cerebral Hemorrhage/etiology , Child , Child, Preschool , Cysts/diagnostic imaging , Cysts/etiology , Female , Humans , Infant , MaleSubject(s)
Metrizamide , Myelography/methods , Humans , Premedication , Spinal Cord Diseases/diagnostic imagingSubject(s)
Brain Neoplasms/diagnostic imaging , Sella Turcica/diagnostic imaging , Tomography, X-Ray Computed , Brain Injuries/diagnostic imaging , Cerebrovascular Disorders/diagnostic imaging , Craniopharyngioma/diagnostic imaging , Diagnosis, Differential , Glioma/diagnostic imaging , Humans , Meningeal Neoplasms/diagnostic imaging , Meningioma/diagnostic imaging , Pituitary Neoplasms/diagnostic imaging , Sphenoid Bone/diagnostic imaging , Sphenoid Sinus/diagnostic imagingSubject(s)
Brain Diseases/diagnostic imaging , Brain Neoplasms/diagnostic imaging , Hydrocephalus/complications , Parkinson Disease/etiology , Tomography, X-Ray Computed , Adult , Aged , Atrophy , Brain Diseases/complications , Brain Neoplasms/complications , Electroencephalography , Female , Humans , Hydrocephalus/diagnostic imaging , Male , Middle Aged , Parkinson Disease/complications , Parkinson Disease/diagnostic imaging , Personality Disorders/etiology , Psychological TestsABSTRACT
In vivo visualization of the optic nerve (ON) by computed tomography (CT) has important clinical applications, both realized and potential. An accurate CT analysis of the ON is, however, hampered by a number of technical limitations. Sinuosity and gaze-shift-related motility of the ON tend to increase the difficulties of demonstrating in a consistently satisfactory fashion this anatomical structure. Nevertheless, if rigid imaging criteria are followed, adequate visualization of the ON may be attained in the majority of patients. Simultaneous visualization of the ON and the eyeball permits establishment of a neuroocular index for clinical use.
Subject(s)
Optic Nerve/diagnostic imaging , Tomography, X-Ray Computed , Humans , Optic Nerve/anatomy & histologyABSTRACT
Increase in the caliber and course tortuosity of the optic nerve (ON) can be demonstrated by computed tomography (CT) in cases of papilledema due to intracranial tumors, hydrocephalus, pseudotumor cerebri, and other conditions causing increased intracranial pressure. The enlargement of the ON in these conditions is generally bilateral, although one of the nerves, usually of the side of the tumoral pathology, may be thicker. Enlargement on the ON may also be demonstrated by CT in papilledema due to optic neuritis. Occasionally, the thickened ON also display increased attenuation coefficient values.
Subject(s)
Optic Nerve/diagnostic imaging , Papilledema/diagnostic imaging , Tomography, X-Ray Computed , Humans , Optic Nerve/pathology , Papilledema/pathologyABSTRACT
The value of CT for the diagnosis and followup of infantile hydrocephalus is discussed. The ventricular volume, subependymal periventricular hypodensity, sbudural hygroma or hematoma, position of catheter in the ventricles, ependymal inflammation and other occasional findings are considered.
Subject(s)
Hydrocephalus/diagnostic imaging , Hydrocephalus/surgery , Tomography, X-Ray Computed , Cerebrospinal Fluid Shunts/adverse effects , Follow-Up Studies , Humans , Hydrocephalus/congenital , Infant, NewbornSubject(s)
Brain Diseases/etiology , Cognition Disorders/etiology , Neural Conduction , Uremia/psychology , Adult , Brain Diseases/diagnostic imaging , Electroencephalography , Humans , Middle Aged , Psychological Tests , Renal Dialysis/adverse effects , Tomography, X-Ray Computed , Uremia/complications , Uremia/physiopathologyABSTRACT
The accuracy of CAT in the diagnosis of infratentorial expanding lesions is analysed on the basis of 224 personal cases. The posterior fossa lesions are classified in four groups according to the reliability of CAT as the only pre-operative examination. The present indications for conventional neuroadiological procedures are also outlined. Particular emphasis is laid on the information supplied by CAT in postoperative follow up to detect both immediate and delayed complications.
Subject(s)
Brain Neoplasms/diagnostic imaging , Tomography, X-Ray Computed , Adult , Aged , Cerebellar Neoplasms/diagnostic imaging , Cerebellar Neoplasms/surgery , Cerebral Angiography , HumansABSTRACT
The computed tomography (CT) scans carried out in hydrocephalic patients before and after surgical treatment [cerebrospinal fluid (CSF) shunting] were assessed by analysis of the densities. The numerical data were compared to the pictorial record on the display console. The periventricular hypodensity was correlated to the clinical parameters and to the time lapse after surgical treatment. The subependymal hypodensity shows good direct correlation to the transit of CSF from the ventricles to the white matter, and to the clinical status of the patients. The mathematical analysis supplies objective data and comparable indices. It constitutes the starting point for an automatic evaluation of the CT images of the process of transependymal CSF resorption in non-treated and treated hydrocephalus.
