Attila Frigy

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The microscopic spectrum of benign lichenoid keratosis (BLK) was studied by examination of 30 examples. BLK consists of a segment of hyperplastic epidermis accompanied by a lymphoid infiltrate in the papillary dermis. Although termed "lichen planus-like," saw-tooth acanthosis predominated in only seven lesions, whereas irregular acanthosis was widespread in(More)
UNLABELLED Syncope is defined as a transient, self-limited loss of consciousness. It is an important cause of morbidity in general population and the vasovagal syncope (VVS) is a common clinical problem which often leads to hospital admission, multiple office visits, and performing of many diagnostic tests. Head-up tilt table testing (HUTT) is a widely used(More)
This paper presents a new way to solve the inverse problem of electrocardiography in terms of heart model parameters. The developed event estimation and recognition method is based on an optimization system of heart model parameters. An ANN-based preliminary ECG analyzer system has been created to reduce the searching space of the optimization algorithm.(More)
The accuracy of fine needle aspiration (FNA) cytology for the diagnosis of lymphoma and other hematolymphoid malignancies was investigated by a review of 158 FNA specimens from 143 patients. Patients included in the study had either a diagnosis of a hematolymphoid malignancy by FNA cytology or a biopsy diagnosis of lymphoma that was preceded by FNA(More)
This paper presents a new QRS complex detection algorithm that can be applied in various on-line ECG processing systems. The algorithm is performed in two steps: first a wavelet transform filtering is applied to the signal, then QRS complex localization is performed using a maximum detection and peak classification algorithm. The algorithm has been tested(More)
The efficacy of sublingual verapamil (Verapabene, 40 mg) in acute control of high ventricular rate was assessed in 20 patients with chronic atrial fibrillation (AF) of ischemic origin (class NYHA II and III). The effect on irregularity of the rhythm was also studied using time domain parameters of heart rate variability. Four ECG recordings (before, and at(More)
A 56-year-old woman had solitary plasma-cell myeloma in the right humerus. Six weeks after local irradiation therapy, she died from pulmonary alveolar hemorrhage and bilateral pleural effusion with malignant plasma-cell infiltration of the right atrium. Ultrastructural studies of the plasma cells from the myocardium demonstrated large bundles of prominent,(More)