Localized prior knowledge and optimal interpolation in high-resolution tomography.

The problem of electromagnetic tomographic reconstruction is approached in terms of the derivation of a minimum norm interpolator, incorporating a priori knowledge gained from a previous reconstruction. An algorithm is suggested for the initial estimate and both images are compared to that of bilinear interpolation.

[F-waves and H-reflexes in hemispastic syndrome]. / F-Wellen und H-Reflexe beim hemispastischen Syndrom.

Canalized F-waves and H-reflexes occurring on small hand and foot muscles are to be considered symptoms of central disinhibition. Occurrence of these waves and reflexes in patients with hemispastic syndrome is analyzed and correlated with clinical aspects.

[Longitudinal electromyography findings in abstinent alcoholics]. / Elektromyographische Befunde in der Längsschnittbeobachtung abstinent lebender Alkoholiker.

Polyneuropathies by long term alcohol dependent Patients are characterized by "axonal" and "demyelinized" type. By abstinence we found a diminution of symptoms.

[Computerized tomography findings in malignant progressive Duchenne muscular dystrophy]. / Computertomographische Befunde bei maligner progressiver Muskeldystrophie Duchenne (DMD).

A correct diagnosis of progressive muscle dystrophy type Duchenne is important for consultation of the family of patients. The muscles of neck, shoulder, back, pelvis and legs of 23 patients were examined by computed tomography. The density of selected muscles were measured and compared with that of normal probands. Typical changes in the density-pattern were found. It is show, that the measurement of the density-pattern of muscles in pelvis and legs is sufficient for a sure diagnosis of progressive muscle dystrophy Duchenne.

[The incidence of neurotoxic complications in polyurethane production]. / Zur Häufigkeit neurotoxischer Komplikationen bei der Polyurethanherstellung.

40 labour employed with the production of polyurethan had been subject to a subtile, clinical, neurological, psychological and neuropsychological examination. Troubles of the respiratory and the gastrointestinal tracts had been predominantly, neurasthenic symptoms had been registered in 22.5%. It is recommended to perform in all the exposed labour a neurological basis examination and to utilize the psychological-neurological inquiry (PNF).

[Grading of brain tumors using computer-assisted analysis of CT images and anamnestic data]. / Zum Hirntumorgrading durch computergestützte Analyse von CT-Bildern und anamnestischen Daten.

For the classification of various brain tumours data from 139 patients with histologically proven diagnosis were used. With linear discriminant analysis and hierarchic classification of clinical and anamnestic data and features obtained by Walsh-transformation of image data presently 7 classes of tumours are differentiated with an estimated classification rate of 85% and reclassification rate of 92%.

[Treatment of extrapyramidal hyperkineses in childhood with tiapride]. / Die Behandlung extrapyramidaler Hyperkinesen im Kindesalter mit Tiaprid.

34 children with extrapyramidal hyperkinesis were treated with Tiaprid. With 22 children the extrapyramidal syndromes could be reduced considerably or disappeared. A reduction of vigilance in the phase of adjustment was the only side effect.

[Are alcoholic polyneuropathies reversible?]. / Sind alkoholische Polyneuropathien reversibel?

Polyneuropathies by long term alcohol dependent patients are characterized by symmetric distal type of manifestation. By abstinence we found a diminution of symptoms. It is a point of view for treatment and diagnostic.

[Correlation between clinical and paraclinical findings in brain tumors in comparison with the operation site]. / Die Korrelation zwischen den klinischen und paraklinischen Befunden bei Hirntumoren im Vergleich zum Operationssitus.

On the basis of clinical material consisting of 147 brain tumors, the authors carry out a comparative investigation involving the site of the ensuing operation to ascertain the accuracy of the clinical and paraclinical diagnoses. Computed tomographic findings were deliberately excluded with the intention of focusing on the accuracy attainable by traditional means. Clinical findings, X-ray examination of the skull, ophthalmological findings, electroencephalographic and echoencephalographic data, nuclear diagnosis, and angiographic findings were all taken into account.

[Electrophysiologic studies of patients with neural muscular atrophy]. / Elektrophysiologische Untersuchungen an Patienten mit neuraler Muskelatrophie.

Various nerve conduction velocities, the terminal latency (TL) of facial nerve, the trigeminofacial reflex and fast auditory evoked potentials (FAEP) were investigated in 26 patients with peroneal muscular atrophy (22 with HMSN I and 4 with HMSN II). With the brain nerve status revealing no clinical abnormalities, 85.7% of HMSN I patients showed a longer-than-normal TL of the facial nerve, 66.6% had a prolonged early reflex component of trigeminofacial reflex and 22.7% pathological FAEPs. Normal neurophysiologic findings were obtained for brain nerves of HMSN II subjects. Subclinical involvement of the mid-group of brain nerves did not at all correlate with the impairment of extremity nerves and the duration of the disease. The present results reflect the heterogeneity of HMSN.

[Diagnosis of obliterating vascular processes in the supraaortic area]. / Beitrag zur Diagnostik obliterierender Gefässprozesse im supraaortalen Bereich.

For the diagnostics of obliterating vascular changes in the supraaortic area the invasive diagnostics of the vessels is not to be renounced now as before. The indication to the angiographic investigation results from clinical, perfusion-scintigraphic and Doppler-sonographic-findings. Of 390 patients 289 pathological angiographic findings in the supraaortic vascular area. In 101 patients normal findings were stated. Altogether 509 individual pathological findings were represented. In the comparison of the results of the investigations in the various diagnostic methods the clinical neurological investigation showed itself as particularly evident method. It should be decisive for the indication to the invasive diagnostics. The correspondence between the angiographic findings and the result of the perfusion-scintigraphic and Doppler-sonographic investigations, respectively, was the greater the more expressed the extracranial vascular findings represented themselves. In 127 patients with multiple obliterating vascular changes the size of the pathological changes and their localization could be established only angiographically.

[Late damage caused by an undetected compartment syndrome. Forensic evaluation]. / Spätschaden eines nicht erkannten Kompartmentsyndroms. Gutachterliche Beurteilung.

A brief account is given of the aetiology and pathophysiology of the compartmental syndrome. Without decompression, acute compartmental syndrome causes irreversible muscle necrosis after six hours. Immediate diagnosis and therapeutic action are, therefore, imperative. Chronic courses are rare and are, probably, not unambiguously identifiable. Compartmental syndrome of the anterior tibial zone, when misinterpreted and taken for a muscular hernia, may lead to the development of acute compartmental syndrome with all its complications, once the fascia has been closed. Surgical opinion is discussed on the basis of the above case history.

[Computer tomography studies in myotonic dystrophies]. / Computertomographische Untersuchungen bei myotonen Dystrophien.

Besides clinical symptoms, progress and electromyography the computer tomography is a possibility for improvement the diagnostic of myotone dystrophy. Even small changes in muscle structure are detectable and especially m. soleus exhibits early and pronounced alterations. By means of density distribution pattern an improved characterization of the disease is possible. Additional informations are obtained by cerebralcomputertomography. Hints for atrophy of brain tissue are expectable at all patients with myotone dystrophy. According to the presented findings the computer tomography enlarges the diagnostic possibilities at myotone dystrophy.

Heart rate variability in chronic alcoholics: a follow-up study.

Heart rate variability (HRV) was studied in 11 chronic alcoholic subjects, 1-30 days after the beginning of abstinence and again 5, 12 and 24 weeks later. Two patients could be re-examined after 19 and 22 months, respectively. In the follow-up study, the total patient group showed a statistically significant increase in HRV with prolonged abstinence of at least 6 months. No recovery of efferent vagal function was found in 4 patients. It is suggested that the vagal neuropathy may improve in chronic alcoholics, but perhaps only in patients with a short to moderately long duration of drinking history or a functional rather than an organic vagal damage.

[Possible uses of Convulsofin liquid in the treatment of pediatric epilepsies]. / Einsatzmöglichkeiten von Convulsofin-liquidum bei der Behandlung kindlicher Epilepsien.

The effect of Convulsofin-liquidum on several epilepsies and types of seizure in childhood is described. Typical and atypical absences, tonic-clonic seizures of primary generalised epilepsies as well as atonic or myoclonic seizures are considered to be the main indications for the treatment with Convulsofin. To the special advantage of the application in drops especially with infants is referred.