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Biomedical subjects

C R Fitz

Publications and source records attributed to C R Fitz.

At least 91 records · Page 5Linked to original sources
PubMed1978

Congenital spinal and cord lesions in children and computed tomographic metrizamide myelography.

Computed tomographic metrizamide myelography (CTMM) has developed into a highly sophisticated and accurate neuroradiologic technique in the diagnosis of childhood spinal dysrhaptic states. Of the 84 patients studied by this technique, 31 with the dysrhaphic spine also had lesions such as a tethered and low conus, diastematomyelia, or neuroenteric cysts. We believe that the exquisite pathologic anatomy obtained by CTMM obviates all neuroradiologic techniques other than a preliminary anteroposterior and lateral spinal roentgenograph.

Age Factors↗
PubMed1978

Computed tomography in hydrocephalus.

Computed tomography has changed the direction of the investigation of hydrocephalus. Alone or with ventriculography and radionuclide CSF flow studies the types and causes of hydrocephalus can usually be diagnosed. Atrophy with large ventricles, subdural hygromas and mild hydrocephalus may still be difficult to separate. Many of the complications of treatment, such as subdural hematoma, shunt blocks and ventricular isolation, are now visible with the use of computed tomography.

Adolescent↗
PubMed1978

Computed tomography in the evaluation of encephaloceles in infants and children.

Computed tomography (CT) is an accurate diagnostic modality in the evaluation of encephaloceles. The axial and coronal planes, contrast enhancement attenuation measurement of the contents of the encephalocele, and the use of the standard and reverse modes for viewing the CT images are all valuable in this evaluation.

Child↗
PubMed1978

Computed tomography in craniopharyngiomas.

Computed tomographic examinations of 28 children and 12 adults with surgically proved craniopharyngiomas were retrospectively studied for characteristic findings that might be diagnostic of this tumor. It was found that 8 of 10 children and 2 of 4 adults examined pre-operatively had at least 2 of 3 findings: calcification, cyst, or contrast enhancement on CT. The remaining pre-operative patients did not receive contrast in their initial exams. Unusual presentation of the tumor in adults is also discussed.

Adolescent↗
PubMed1978

Radiologic findings of hamartomas of the tuber cinereum and hypothalamus.

Five cases, four histologically proved, or hamartoma of the tuber cinereum and hypothalamus in children (age range: 2--12 years) are reported. Three cases had pubertas praecox, and in all of these the hamartoma was located in the basal cistern between the chiasm and pons, and had a collar button shape and size typical of hamartoma of the tuber cinereum. In the third case, which presented with headache, a huge calcified mass in the suprasellar region was initially thought to be craniopharyngioma. The fourth case had a hamartoma within the substance of the hypothalamus and presented with hyponatremia and temporal lobe seizures.

Brain Neoplasms↗
PubMed1978

Two projection computed tomography: the axial and Towne projections.

It is occasionally necessary in evaluating lesions around the third ventricle and posterior fossa to supplement the axial view with another projection. The authors have routinely used the coronal projection as a second projection. However, the Towne view for computed tomography can be used as a second projection instead of the coronal; it is technically easier and faster to perform than the coronal projection, and provided good evaluation of the posterior fossa and para third ventricular areas in children.

Cerebral Ventricle Neoplasms↗
PubMed1978

Computed tomography of intraorbital optic nerve gliomas in children.

Optic nerve gliomas were diagnosed with computed tomography (CT) in 10 children. CT: (A) provides the best radiographic means of demonstrating the orbital portion of the optic nerves; (b) can evaluate the clinically unsuspected optic nerve for bilateral gliomas; (c) demonstrates gross intracranial involvement; and (d) can be used to follow the course of a glioma. Gliomas can present on CT as (a) a uniform thickening of the entire nerve; (b) a solitary fusiform enlargement of the nerve; or (c) an irregular solid thickening along the nerve. The authors routinely use axial CT of optic nerves as the primary diagnostic scan.

Adolescent↗
PubMed1978

Absence of the corpus callosum: computed tomographic evaluation in infants and children.

Absence of the corpus callosum (ACC) has a characteristic finding on computed tomography of an elevated third ventricle interposed between the lateral ventricles. Ten children with ACC, 8 with associated craniocerebral lesions, are presented. The chief importance of computed tomography is in the accurate demonstration of ACC and its commonly associated intracranial lesions, some of which can be surgically treated. Secondly, the diagnosis of ACC implies, to the clinician, a greater degree of cellular brain maldevelopment.

Adolescent↗
PubMed1977

Unrecognized atypical tuberous sclerosis diagnosed with CT.

Past experience in this hospital has shown that the neuroradiological diagnosis of tuberous sclerosis is often made before the diagnosis is clinically suspected. We present a child in such a circumstance in whom axial and coronal CT demonstrated significant neoplastic progression of this disease. The presenting symptom was merely that of increased intracranial pressure.

Astrocytoma↗
PubMed1977

Intrarenal collateral circulation in the pediatric patient.

The presence of an intrarenal collateral circulation in pediatric patients with segmental renal artery stenosis has not been stressed. Three patients demonstrating these collateral pathways are presented. The anatomy, pathogenesis, angiographic features, differential diagnosis, and significance of intrarenal collaterals in infants and children are discussed.

Adolescent↗
PubMed1977

Metrizamide in pediatric myelography.

Metrizamide, a new water-solution iodinated contrast medium, was evaluated in 63 infants and children, most of whom had lumbosacral or low thoracic lesions. The diagnostic quality was found to be good, and no serious complications or permanent sequelae were encountered. Chief complications were headache, nausea, vomiting and fever. No myoclonic spasms or convulsions were seen. The advantages and disadvantages of metrizamide are discussed.

Adolescent↗
PubMed1977

Coronal computed tomography of the skull and brain in infants and children. Part I: Technique and results.

The advent of scanners with an air gap and a tilting gantry have made possible the use of the coronal view in computed tomography of the skull and brain in infants and children. Of 400 axial scans performed over a four-month period, 50 were supplemented by the coronal projection. Although the artifacts, uncomfortable position, and prolonged scanning time associated with coronal scanning make it impractical as the only modality, when used as an adjunct to the axial view it can provide valuable additional diagnostic information.

Adolescent↗
PubMed1977

Coronal computed tomography of the skull and brain in infants and children. Part II. Clinical value.

Coronal computed tomography is an important adjunct to the routine axial view in the evaluation of lesions of the skull and brain in infants and children. Of 400 axial scans performed over a four-mounth period, 50 were supplemented by coronal scans. Intracranial or cranial abnormalities were present in 39 (78%). Although the disadvantages of the coronal projection make it impractical as the only modality, when used as an adjunct to the axial view certain lesions of the skull and brain are diagnosed and delineated better.

Astrocytoma↗
PubMed1977

Pediatric myelography with metrizamide.

Ninety-four children were examined with metrizamide (Amipaque). Overall, the quality of the examinations in the lumbar-low thoracic region was generally equivalent to that obtained with iophendylate. Supine myelography is unfortunately still a necessity in a large number of cases. The side effects, especially nausea and vomiting, slight temperature elevation and fever, are considerably higher with metrizamide and also higher than previously reported in adults. Advantages of metrizamide over oily media are the absorption of the medium which eliminates the need for post-procedure removal and the higher rate of conus demonstration in the prone position; both facilitate the examination. The ability to follow myelography with computer scanning is also beneficial.

Adolescent↗
PubMed1977

Craniopharyngiomas in children: neuroradiological evaluation.

Craniopharyngiomas constitute one of the commonest tumors in the sellar and parasellar region in children. Most often total surgical removal is attempted. Prior knowledge of the extent of the tumor and adhesions to adjacent neurovascular structures is thus necessary prior to deciding the type of surgical intervention. This paper deals with the usefulness of multiple neuroradiographic studies in evaluating these bening neoplasms, based on nearly 50 cases of craniopharyngiomas.

Adolescent↗