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Biomedical subjects

F L Peeters

Publications and source records attributed to F L Peeters.

At least 37 records · Page 2Linked to original sources
PubMed1982

Vascular malformations as the cause of unilateral exophthalmus: diagnostic and therapeutic considerations.

Unilateral exophthalmus can be caused by intraorbital as well as by extraorbital vascular malformations. The most frequent indications for arteriography and phlebography are given. Various types of arteriovenous malformations and clinical differences between rapid flow and slow-flow fistulas are described, and various types of intraorbital malformations are discussed. Embolization is possible in a number of extraorbital vascular malformations. 3 cases are reported on whom such embolization were carried out.

Adolescent↗
PubMed1981

Neuroradiological examinations in chiasmal syndromes.

The chiasmal syndrome has distinct ophthalmological findings. However, the pathological processes in the chiasmal region often give rise to differential diagnostic problems. Computer tomography is the neuroradiological method of choice. Besides computer tomography some other neuroradiological examination techniques as skull X-rays, carotid arteriography and in some instances cisternography have retained their position in the diagnosis of space-occupying processes in the region of the chiasm, which will be illustrated.

Brain Neoplasms↗
PubMed1981

Collateral circulation between the external and internal carotid artery.

The most important anastomoses between the arteria carotis externa and interna are discussed, based on a study of several patients with obstruction of the arteria carotis interna. When the arteria carotis interna is obstructed, it is important to determine, as best as possible, the collateral circulation to the vessels distal to the occlusion, since the prognosis can partly depend on it, and because collateral circulation must be taken into account in evaluating operative possibilities.

Carotid Arteries↗
PubMed1980

Therapeutic embolization in angiomas and tumors.

With reference to 4 treated patients, the possibilities of embolization are discussed. Gelfoam is the substance that can be used most easily, but it has only limited possibilities of application because of the chance of resorption. On several of the patients discussed, other substances were used, which appeared to have had a favorable effect on the result. To prevent nerve failure due to embolization, the vascularization of the nerves involved should be borne in mind.

Bucrylate↗
PubMed1980

Detachable balloon technique in the treatment of direct carotid-cavernous fistulas.

This paper describes the results obtained in the treatment of posttraumatic carotid-cavernous fistulas in 7 patients. The method used consisted of closure of the fistula with the aid of a detachable balloon. The advantage of this method over most others is that it closes the fistula but leaves carotid patency intact. In addition to the results, some technical aspects of this method are discussed.

Adolescent↗
PubMed1979

Dural and direct cavernous sinus fistulas.

Fistulas between the cavernous sinus and the carotid artery occur either after trauma or spontaneously. Unilateral exophthalmos is invariably the most conspicuous symptom. Until recently, treatment consisted of some method of occluding the carotid artery involved. Interventional catheter techniques have since been developed that use either Gelfoam embolization or released balloons. The results seem very promising, but long-term results of these new techniques are not yet available. Carotid-cavernous sinus fistulas may be dural or direct, each requiring a different interventional technique. Theredore, it is essential to determine the type involved by selective internal and external carotid angiography. This paper discusses 19 patients with carotid-cavernous fistulas, four of whom were successfully treated by catheter techniques. Gelfoam embolization was used in one case, and in three cases the fistula was closed with the aid of a balloon.

Adolescent↗
PubMed1977

Radiological diagnosis of pontine angle tumours.

The following methods of radiological examination are suitable aids in the diagnosis of pontine angle tumours: plain radiographs and tomograms of the petrosal bone, cisternography of the pontocerebellar cistern with positive- und negative-contrast media, vertebral arteriography and computer tomography. In some 80% of cases of pontine angle tumour, plain X-rays and tomograms can disclose changes. In the case of vestibulocochlear neurinoma confined to an intracanalicular localization, only cisternography with a positive-contrast medium supplies diagnostic information. Cisternography with a negative-contrast medium is a suitable method of radiological examination in the case of larger vestibulocochlear neurinomas, which protrude into the pontocerebellar cistern, and also for the remainder of pontine angle tumours. The technique we use in this cisternography is described and evaluated with reference to 28 patients.

Adult↗
PubMed1977

[Some examples of false negative diagnoses in computer tomography (author's transl)].

Four examples of false negative diagnoses in computer tomography are discussed. The patients were suffering from tumours in the sella turcica, beside the sella turcica and in the cerebellopontine angle. With reference to the two patients with a process beside the sella turcica, the differential diagnosis of these processes (of which the clinical syndrome is characterized by ophthalmoplegia) is discussed. The diagnostic reliability of computer tomography seems to be inferior for these perisellar processes than for other localizations. Angiography and pneumoencephalography are the methods of choice in the diagnosis of these processes.

Adenoma, Chromophobe↗
PubMed1977

Myelography with metrizamide.

Metrizamide (Amipaque) is a new water-soluble contrast medium for myelography. It differs from the conventional contrast media in that, because of its lower toxicity, it can be used also for cervical and thoracic myelography. The method of examination in myelography with water-soluble contrast media differs in some respects from that in myelography with oil-soluble contrast media. For the thoracic region, tomography is highly recommendable. After a description of the method of examination used, some examples of the abnormalities found are presented.

Adult↗
PubMed1977

Radiological diagnosis of orbital tumours.

Apart from plain X-rays of the orbit, the principal radiological methods of examination of exophthalmos are: orbital phlebography, carotid arteriography and, recently, computer tomography. The value of each of these methods is discussed with reference to four patients suffering from exophthalmos of varying aetiology. Computer tomography supplies the most comprehensive information on localization and extent of retro-orbital processes as causes of exophthalmos. Phlebography would seem to be the method of choice in demonstrating processes close to the osseous boundaries of the orbit. Information on the aetiology of retro-orbital processes is rarely obtained by radiological methods. In this respect carotid arteriography would seem to make the most important contribution.

Adult↗
PubMed1975

Radiological manifestations of the Cornelia de Lange syndrome.

This paper describes the radiological findings obtained in 20 patients with the Cornelia de Lange syndrome. The pattern profiles of the hand skeleton were studied in these patients, using the method described by Poznanski et al. This study revealed a short first metacarpal bone, combined with relatively long third and fourth metacarpals, to be the most characteristic feature of the syndrome. No radiological characteristic was found to be pathognomonic of the syndrome, but the combination of a deformed proximal metaphysis of the radius with the above mentioned abnormality in the pattern profile of the hand is described as highly suggestive of the Cornelia de Lange syndrome.

Adolescent↗