[Clinical value of amino acid imaging in paediatric brain tumours. Comparison with MRI].

Purpose: To evaluate single photon emission computed tomography (SPECT) using the amino acid l-3-[123I]-alpha-methyl tyrosine (IMT) and contrast enhanced magnetic resonance imaging (MRI) as diagnostic tools in primary paediatric brain tumours in respect of non-invasive tumour grading. Patients, materials, methods: 45 children with primary brain tumours were retrospectively evaluated. IMT uptake was quantified as tumour/nontumour-ratio, a 4-value-scale was used to measure gadolinium enhancement on contrast enhanced MRI.

Oral comfort, function and hygiene in patients with lingual brackets. A prospective longitudinal study.

Background: Oral comfort, speech, mastication and swallowing, as well as oral hygiene were to be evaluated in a prospective longitudinal study before and after insertion of lingual brackets.

Patients And Method: 22 patients (five male, 17 female, mean age 34.7 years, SD 10.

Comparison of 3 bonded lingual appliances by auditive analysis and subjective assessment.

The aim of this prospective study was to compare for the first time the influences of lingual appliances of different dimensions on sound performance and oral comfort. The study group comprised 12 subjects (10 women, 2 men; mean age, 33.96 years).

[Local mitomycin C therapy after excision of pterygium].

In order to prevent recurrence of pterygium after excision we treated 21 patients postoperatively with Mitomycin-C-eye drops 0.02%. In a mean follow up of 1 1/2 years, we have not seen any recurrence or side effect.

[History of the Berlin Ophthalmology Society].

To mark the congress of the Berlin Ophthalmological Society in December 1989, the authors review the development of ophthalmology in Berlin and in particular the history of this ophthalmological society. The review was prompted by the political changes which began in October 1989, enabling ophthalmologists from the eastern part of the city to attend the congress in West Berlin for the first time in 28 years.