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F Gritzali

Publications and source records attributed to F Gritzali.

3 recordsLinked to original sources
PubMed1989

Detection of the P and T waves in an ECG.

A method for the detection of the P and T waves, as well as the identification of their onset and offset boundaries in an ECG, is described in this paper. This method is based on a recently proposed "length" transformation, which exhibits some very interesting characteristics and can be utilized for one-channel or multichannel waveforms. The utilization of this transformation for the detection of the P and T waves in ECGs is exemplified in this paper. Experimental results are also given with real ECGs taken from the standard CSE ECG library.

Algorithms↗
PubMed1984

Estimates of dose to the bladder during direct radionuclide cystography: concise communication.

We estimate the absorbed dose to the bladder walls, Db, due to [99mTc]pertechnetate direct radionuclide cystography, with due consideration to the dynamic nature of the examination. Our analytical method resulted in Db values expressed as functions of the bladder filling time. These values are compared with published data based on a static bladder model. It is shown that the Db value depends strongly on the protocol under which the examination is carried out. It is also shown that the normal saline flow rate and the time of the administration of the radioactive material can be adjusted so that the radiation burden may be greatly reduced.

Adult↗